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Talk_id	Date	Speaker	Title
14372	Monday 8/20 11:00 AM	Soumyashant Nayak, University of Pennsylvania	Analyticity in Operator Algebras New Window Analysis and PDE Speaker: Soumyashant Nayak, University of Pennsylvania Title: Analyticity in Operator Algebras Date: 08/20/2018 Time: 11:00 AM - 12:00 PM Place: C517 Wells Hall The title of this talk is borrowed from a seminal paper by Arveson discussing non-commutative analogues of the Hardy space H^∞(T) via the so-called subdiagonal algebras. Subdiagonal algebras are a family of non-self-adjoint operator algebras which give a common perspective to the study of some triangular operator algebras (for example, the algebra of block upper triangular matrices in M_n(C)), Dirichlet function algebras, etc. The first part of the talk will be about a non-commutative version of inner-outer factorization in finite maximal subdiagonal algebras. We will then discuss a proof of a version of Jensen's inequality in this setting which relates to some classical results by Szegö.
14373	Friday 8/24 4:10 PM	Hyenkyun Woo, Korea University of Technology & Education	Bregman-divergence for Legendre exponential families and data analysis New Window Applied Mathematics Speaker: Hyenkyun Woo, Korea University of Technology & Education Title: Bregman-divergence for Legendre exponential families and data analysis Date: 08/24/2018 Time: 4:10 PM - 5:00 PM Place: C517 Wells Hall Bregman-divergence is a well-known generalized distance framework in various applications, such as machine learning and image processing. In this talk, by using dual structure of the Bregman-divergence associated with the subclass of convex function of Legendre function, we analyze the structure of the Legendre exponential families whose cumulant function corresponds to the conjugate convex function of Legendre type. Actually, Legendre exponential families are the extended version of the regular exponential families to include non-regular exponential families, such as the inverse Gaussian distribution. The main advantage of the proposed Bregman-divergence-based approach is that it offers systematic successive approximation tools to handle closed domain issues arising in non-regular exponential families and the statistical distribution having discrete random variables, such as Bernoulli distribution and Poisson distribution. In addition, we also introduce the generalized center-based clustering algorithm based on the Tweedie distribution.
14375	Friday 8/31 4:10 PM	Gerard Awanou, University of Illinois, Chicago	Discrete Aleksandrov solutions of the Monge-Ampere equation New Window Applied Mathematics Speaker: Gerard Awanou, University of Illinois, Chicago Title: Discrete Aleksandrov solutions of the Monge-Ampere equation Date: 08/31/2018 Time: 4:10 PM - 5:00 PM Place: 1502 Engineering Building A discrete analogue of the Dirichlet problem of the Aleksandrov theory of the Monge-Amere equation is derived in this paper. The discrete solution is not required to be convex, but only discrete convex in the sense of Oberman. We prove that the uniform limit on compact subsets of discrete convex functions which are uniformly bounded and which interpolate the Dirichlet boundary data is a continuous convex function which satisfies the boundary condition strongly. The domain of the solution needs not be uniformly convex. We obtain the first proof of convergence of a wide stencil finite difference scheme to the Aleksandrov solution of the elliptic Monge-Ampere equation when the right hand side is a sum of Dirac masses. The discrete scheme we analyze for the Dirichlet problem, when coupled with a discretization of the second boundary condition, as proposed by Benamou and Froese, can be used to get a good initial guess for geometric methods solving optimal transport between two measures.
13345	Thursday 9/6 2:00 PM	Alex Waldron, MSU	Yang-Mills flow in dimension four New Window Geometry and Topology Speaker: Alex Waldron, MSU Title: Yang-Mills flow in dimension four Date: 09/06/2018 Time: 2:00 PM - 3:00 PM Place: C304 Wells Hall Among the classical geometric evolution equations, YM flow is the least nonlinear and best behaved. Nevertheless, curvature concentration is a subtle problem when the base manifold has dimension four. I'll discuss my proof that finite-time singularities do not occur, and briefly describe the infinite-time picture.
15388	Thursday 9/6 3:00 PM	Daping Weng, MSU	Cluster Donaldson-Thomas Transformation of Grassmannian New Window Seminar in Cluster algebras Speaker: Daping Weng, MSU Title: Cluster Donaldson-Thomas Transformation of Grassmannian Date: 09/06/2018 Time: 3:00 PM - 4:00 PM Place: C117 Wells Hall Abstract: On the one hand, there is a 3d Calabi Yau category with stability conditions associated to a quiver without loops or 2-cycles with generic potential, and one can study its Donaldson-Thomas invariants. On the other hand, such a quiver also defines a cluster Poisson variety, which is constructed by gluing a collection of algebraic tori in a certain way governed by combinatorics. In certain cases, the Donaldson-Thomas invariants of the former category can be captured by an automorphism on the latter space. In this talk, I will recall the cluster Poisson structure on the moduli space of configurations of points in a projective space, and state my result on constructing the corresponding cluster Donaldson-Thomas transformation, and give a new proof of Zamolodchikov’s periodicity conjecture in the $A_m\boxtimes A_n$ cases as an application. If time permits, I will also talk about the generalization of this result to double Bruhat cells.
14378	Friday 9/7 4:10 PM	Tom Needham, Ohio State University	Gromov-Monge Quasimetrics and Distance Distributions New Window Applied Mathematics Speaker: Tom Needham, Ohio State University Title: Gromov-Monge Quasimetrics and Distance Distributions Date: 09/07/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall In applications in computer graphics and computational anatomy, one seeks measure-preserving maps between shapes which preserve geometry as much as possible. Inspired by this, we define a distance between arbitrary compact metric measure spaces by blending the Monge formulation of optimal transport with the Gromov-Hausdorff construction. We show that the resulting distance is an extended quasi-metric on the space of compact mm-spaces, which has convenient lower bounds defined in terms of distance distributions. We provide rigorous results on the effectiveness of these lower bounds when restricted to simple classes of mm-spaces such as metric graphs or plane curves.This is joint work with Facundo Mémoli.
15399	Monday 9/10 1:00 PM	Nick Ovenhouse, MSU	Hochschild Cohomology New Window Student Algebra Speaker: Nick Ovenhouse, MSU Title: Hochschild Cohomology Date: 09/10/2018 Time: 1:00 PM - 1:50 PM Place: C517 Wells Hall I will give the basic definitions of Hochschild cohomology, and discuss interpretations of the first few cohomology groups H^0, H^1, and H^2. Time permitting, I will discuss how the groups H^2 and H^3 are related to formal deformations of algebras and quantization of Poisson brackets.
15401	Wednesday 9/12 4:00 PM	Alex Waldron, MSU	Yang-Mills flow in dimension four New Window Analysis and PDE Speaker: Alex Waldron, MSU Title: Yang-Mills flow in dimension four Date: 09/12/2018 Time: 4:00 PM - 4:50 PM Place: C517 Wells Hall Among the classical geometric evolution equations, YM flow is the least nonlinear and best behaved. Nevertheless, curvature concentration is a subtle problem when the base manifold has dimension four. I'll discuss my proof that finite-time singularities do not occur, and briefly describe the infinite-time picture. This talk will be more analytic and contains <50% overlap with my talk last Thursday.
15400	Thursday 9/13 1:00 PM	Leonardo Abbrescia, MSU	Newton's method and periodic solutions of nonlinear wave equations New Window Student PDE Speaker: Leonardo Abbrescia, MSU Title: Newton's method and periodic solutions of nonlinear wave equations Date: 09/13/2018 Time: 1:00 PM - 2:00 PM Place: C304 Wells Hall We will introduce the paper of Walter Craig and C. E. Wayne of the same name as the title of the talk. We will hopefully cover the first eleven pages.
13292	Thursday 9/13 2:00 PM	Rita Gitik, Michigan	On Tame Subgroups of Finitely Presented Groups New Window Geometry and Topology Speaker: Rita Gitik, Michigan Title: On Tame Subgroups of Finitely Presented Groups Date: 09/13/2018 Time: 2:00 PM - 2:50 PM Place: C304 Wells Hall We describe several examples of tame subgroups of finitely presented groups and prove that the fundamental groups of certain finite graphs of groups are locally tame.
15393	Thursday 9/13 3:00 PM	Dylan Rupel, MSU	The Combinatorics of Compatible Pairs New Window Seminar in Cluster algebras Speaker: Dylan Rupel, MSU Title: The Combinatorics of Compatible Pairs Date: 09/13/2018 Time: 3:00 PM - 4:00 PM Place: C117 Wells Hall Abstract: Compatible subsets of edges in a maximal Dyck path were introduced by Lee, Li, and Zelevinsky as a tool for constructing nice bases for rank two cluster algebras. In this talk, I will present a generalization of this combinatorics and give two applications. The first application is a combinatorial construction of non-commutative rank two generalized cluster variables which proves a conjecture of Kontsevich. The second application gives a combinatorial description of the cells in an affine paving of rank two quiver Grassmannians, this part is joint work with Thorsten Weist.
15384	Thursday 9/13 4:10 PM		Postdoc Lightning Talks New Window Colloquium Speaker: Title: Postdoc Lightning Talks Date: 09/13/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall No abstract available.
14376	Friday 9/14 4:10 PM	Dongwook Lee, University of California, Santa Cruz	New Polynomial-free, Variable High-order Methods using Gaussian Process Modeling for CFD New Window Applied Mathematics Speaker: Dongwook Lee, University of California, Santa Cruz Title: New Polynomial-free, Variable High-order Methods using Gaussian Process Modeling for CFD Date: 09/14/2018 Time: 4:10 PM - 5:00 PM Place: 1502 Engineering Building In this talk, an entirely new class of high-order numerical algorithms for computational fluid dynamics is introduced. The new method is based on the Gaussian Processes (GP) modeling that generalizes the Gaussian probability distribution. The new approach is to adopt the idea of the GP prediction technique which utilizes the covariance kernel functions and use it to interpolate and/or reconstruct high-order approximations for computational fluid dynamics simulations. The new GP high-order method is proposed as a new numerical high-order formulation in finite difference and finite volume frameworks, alternative to the conventional polynomial-based approaches.
15404	Monday 9/17 1:00 PM	Joshua Ruiter, MSU	Absolute Values and Ostrowski's Theorem New Window Student Algebra Speaker: Joshua Ruiter, MSU Title: Absolute Values and Ostrowski's Theorem Date: 09/17/2018 Time: 1:00 PM - 1:50 PM Place: C517 Wells Hall The notion of an absolute value function can be generalized to arbitrary fields; one example is the p-adic absolute value on the rational. Ostrowski's theorem classifies all absolute values on the rationals. An absolute value induces a metric in a natural way, so we can "complete" a field with respect to a given absolute value. We'll also discuss the close relationship between absolute values and discrete valuation rings.
14371	Monday 9/17 4:10 PM	Selman Akbulut, MSU	Where do Seiberg-Witten equations come from? New Window Topology Speaker: Selman Akbulut, MSU Title: Where do Seiberg-Witten equations come from? Date: 09/17/2018 Time: 4:10 PM - 5:30 PM Place: C304 Wells Hall The question in title is akin to asking where the equation of motion of a free falling object a + bt + 1/2 gt^2 in 3-space come from? then discovering that the "objects fall with constant acceleration" rule. Similarly, we derive Seiberg-Witten equations (which also have a linear part and a quadratic part) from the deformation equations of an "isotropic associative submanifold" of a complex G_2 Manifold. For this, we will define the notion of complex G_2 manifold and notion of complexification of a G_2 manifold (this is a joint work with Ustun Yildirim).
15402	Monday 9/17 4:10 PM	Andrew Krause; David Bramer	MTH 124 - Inclusivity Enhancements New Window Conversations among Colleagues Speaker: Andrew Krause; David Bramer Title: MTH 124 - Inclusivity Enhancements Date: 09/17/2018 Time: 4:10 PM - 5:00 PM Place: C109 Wells Hall No abstract available.
15407	Wednesday 9/19 4:00 PM	Zhe Zhang (Alan)	Elliptic Regularity of J-Holomorphic Curves New Window Student Geometry/Topology Speaker: Zhe Zhang (Alan) Title: Elliptic Regularity of J-Holomorphic Curves Date: 09/19/2018 Time: 4:00 PM - 4:50 PM Place: A202 Wells Hall One of the fundamental estimates for the L^p theory of elliptic operators is Calderon-Zygmund inequality. I’ll follow Mcduff & Salamon’s book for the proof of regularity theorem, raising the order of nonlinear Cauchy Riemann equation and making use of mean value property.
14348	Wednesday 9/19 4:10 PM	Richard Kollar, Comenius University, Bratislava, Slovakia	Krein signature - three unexpected lessons New Window Analysis and PDE Speaker: Richard Kollar, Comenius University, Bratislava, Slovakia Title: Krein signature - three unexpected lessons Date: 09/19/2018 Time: 4:10 PM - 5:00 PM Place: C517 Wells Hall Krein signature is an algebraic quantity characterizing purely imaginary eigenvalues of linearized Hamiltonian systems. Instabilities growing from a stable state in these systems are caused by Hamiltonian-Hopf bifurcations, i.e. events when two purely imaginary eigenvalues collide and split off the imaginary axis. The necessary condition for such an event is that the colliding eigenvalues must have mixed signature. In the talk we present three elegant results related to Krein signature - graphical Krein signature and its use to simplify proofs, a connection to stability in general extended systems, and ability to characterize the nature of the eigenvalue collisions directly from the reduced dispersion relation.
15418	Thursday 9/20 3:00 PM	Matthew Mills, MSU	Green sequences and local-acyclicity. New Window Seminar in Cluster algebras Speaker: Matthew Mills, MSU Title: Green sequences and local-acyclicity. Date: 09/20/2018 Time: 3:00 PM - 4:00 PM Place: C117 Wells Hall In 2014 it was conjectured that the equality of the cluster algebra and upper cluster algebra is equivalent to the existence of a maximal green sequence. In this talk we will discuss a stronger result for cluster algebras from mutation-finite quivers with an emphasis on surface cluster algebras. Specifically we show that for all quivers from surface cluster algebras there exists a maximal green sequence if and only if the cluster algebra is equal to the cluster algebra if and only if the cluster algebra is locally-acyclic. We will also provide a counterexample to show that the result does not hold in general.
15378	Thursday 9/20 4:10 PM	Brendon Rhoades, University of California, San Diego	The combinatorics, algebra, and geometry of ordered set partitions New Window Colloquium Speaker: Brendon Rhoades, University of California, San Diego Title: The combinatorics, algebra, and geometry of ordered set partitions Date: 09/20/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall An {\em ordered set partition} of size $n$ is a set partition of $\{1, 2, \dots, n \}$ with a specified order on its blocks. When the number of blocks equals the number of letters $n$, an ordered set partition is just a permutation in the symmetric group $S_n$. We will discuss some combinatorial, algebraic, and geometric aspects of permutations (due to MacMahon, Carlitz, Chevalley, Steinberg, Artin, Lusztig-Stanley, Ehresmann, Borel, and Lascoux-Sch\"utzenberger). We will then describe how these results generalize to ordered set partitions and discuss a connection with the Haglund-Remmel-Wilson {\em Delta Conjecture} in the field of Macdonald polynomials. Joint with Jim Haglund, Brendan Pawlowski, and Mark Shimozono.
15421	Friday 9/21 4:10 PM	Jeff Schenker	NSF Fellowship Info Session New Window Graduate Program Seminar Speaker: Jeff Schenker Title: NSF Fellowship Info Session Date: 09/21/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall No abstract available.
15422	Monday 9/24 1:00 PM		NSA Info Session New Window Graduate Program Seminar Speaker: Title: NSA Info Session Date: 09/24/2018 Time: 1:00 PM - 2:00 PM Place: C304 Wells Hall The SPORT program at the National Security Agency (NSA) offers graduate students the opportunity to apply their academic knowledge in a stimulating professional environment. As a SPORT intern you will work closely with full time Operations Research analysts applying academic and technical skills to challenging, real-world problems. Internships are paid and are 12 weeks in duration (May-August). Applications accepted September 1st through October 31st
15425	Monday 9/24 1:00 PM	Chuangtian Guan, MSU	Witt Schemes and Witt Vectors New Window Student Algebra Speaker: Chuangtian Guan, MSU Title: Witt Schemes and Witt Vectors Date: 09/24/2018 Time: 1:00 PM - 1:50 PM Place: C517 Wells Hall No abstract available.
15408	Wednesday 9/26 4:00 PM	Nick Ovenhouse	Noncommutative Geometry and Character Varieties New Window Student Geometry/Topology Speaker: Nick Ovenhouse Title: Noncommutative Geometry and Character Varieties Date: 09/26/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall Roughly speaking, noncommutative geometry studies noncommutative rings and algebras from a "geometric" perspective. I will discuss some philosophies and approaches to the subject, which leads to the study of character varieties, which I will define and discuss.
15428	Thursday 9/27 1:00 PM	Wenchuan Tian, MSU	Newton's method and periodic solutions of nonlinear wave equations New Window Student PDE Speaker: Wenchuan Tian, MSU Title: Newton's method and periodic solutions of nonlinear wave equations Date: 09/27/2018 Time: 1:00 PM - 2:00 PM Place: C304 Wells Hall We will cover pages 12 - 23 of the paper by Walter Craig and C.E. Wayne of the same title. These pages cover section 2.4 until the end of the proof of Lemma 3.3.
15396	Thursday 9/27 2:00 PM	Giuseppe Martone, University of Michigan	Hitchin representations and positive configurations of apartments New Window Geometry and Topology Speaker: Giuseppe Martone, University of Michigan Title: Hitchin representations and positive configurations of apartments Date: 09/27/2018 Time: 2:00 PM - 3:00 PM Place: C304 Wells Hall Hitchin singled out a preferred component in the character variety of representations from the fundamental group of a surface to PSL(d,R). When d=2, this Hitchin component coincides with the Teichm\"uller space consisting of all hyperbolic metrics on the surface. Later Labourie showed that Hitchin representations share many important differential geometric and dynamical properties. Parreau extended previous work of Thurston and Morgan-Shalen to a compactification of the Hitchin component whose boundary points are described by actions of the fundamental group of the surface on a building. In this talk, we offer a new point of view for the Parreau compactification, which is based on certain positivity properties discovered by Fock and Goncharov. Specifically, we use the Fock-Goncharov construction to describe the intersection patterns of apartments in invariant subsets of the building that arises in the boundary of the Hitchin component.
15398	Thursday 9/27 3:00 PM		Joint meeting with Notre Dame: open problem session New Window Seminar in Cluster algebras Speaker: Title: Joint meeting with Notre Dame: open problem session Date: 09/27/2018 Time: 3:00 PM - 4:00 PM Place: C304 Wells Hall Abstract: we will discuss open problems in Cluster Algebras theory
15381	Thursday 9/27 4:10 PM	Igor Dolgachev, University of Michigan	The reflection group of a regular tetrahedron New Window Colloquium Speaker: Igor Dolgachev, University of Michigan Title: The reflection group of a regular tetrahedron Date: 09/27/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall I will explain how the group of affine orthogonal transformations generated by the reflections into the four facets of a regular tetrahedron and its symmetries appears as a discrete group of motions of the 9-dimensional hyperbolic space, as the full group of automorphisms of some algebraic surfaces and as a lattice in a projective linear group over the 3-adic numbers.
15424	Monday 10/1 4:10 PM	Kursat Sozer, IU	Extended HQFTs in dimension 2 New Window Topology Speaker: Kursat Sozer, IU Title: Extended HQFTs in dimension 2 Date: 10/01/2018 Time: 4:10 PM - 5:30 PM Place: C304 Wells Hall Topological quantum field theories (TQFTs), inspired by theoretical physics, produce manifold invariants behaving well under gluing. For every discrete group G, homotopy quantum field theories (HQFTs) are G-equivariant versions of TQFTs. In this talk we define and classify 2-dimensional extended HQFTs by generalizing methods introduced for TQFTs by Chris Schommer-Pries in 2009. We list generators and relations for the extended G-equivariant bordism bicategory and use them to classify 2-dimensional extended HQFTs.
15426	Wednesday 10/3 4:00 PM	Keshav Sutrave	Take a walk on a Riemann surface New Window Student Geometry/Topology Speaker: Keshav Sutrave Title: Take a walk on a Riemann surface Date: 10/03/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall This talk will be an introduction to Riemann surfaces, including branched covering and monodromy in this setting. I will prove Riemann's existence theorem of branched covers, illustrate this using algebraic curves, and finish with Riemann-Hurwitz.
15389	Wednesday 10/3 4:10 PM	N. K. Nikolski, University of Bordeaux	V.Ya.Kozlov's completeness problem New Window Analysis and PDE Speaker: N. K. Nikolski, University of Bordeaux Title: V.Ya.Kozlov's completeness problem Date: 10/03/2018 Time: 4:10 PM - 5:00 PM Place: C517 Wells Hall In 1948-1950, V.Ya.Kozlov (1914-2007) stated a series of interesting geometric properties of dilated systems D(f)= {f(kx): k= 1,2,...} in the spaces L^p(0,1). Since that, no proofs were published. In particular, for a Rademacher-Haar-Walsh type generator f= 2-periodic odd extension of the indicator function of (0,a), 0<a<1, the system D(f) was claimed to be complete/incomplete for many particular values of a. We prove all Kozlov's statements and several new, as well as discuss other geometric properties of D(f).
15419	Thursday 10/4 11:00 AM	Ramis Movassagh, IBM	TBA New Window Mathematical Physics and Gauge Theory Speaker: Ramis Movassagh, IBM Title: TBA Date: 10/04/2018 Time: 11:00 AM - 12:00 PM Place: C304 Wells Hall No abstract available.
14370	Thursday 10/4 2:00 PM	Artem Kotelskiy, Indiana University	TBA New Window Geometry and Topology Speaker: Artem Kotelskiy, Indiana University Title: TBA Date: 10/04/2018 Time: 2:00 PM - 2:50 PM Place: C304 Wells Hall No abstract available.
15420	Thursday 10/4 4:10 PM	Yang Yang, Michigan State University	TBA (special colloquium) New Window Colloquium Speaker: Yang Yang, Michigan State University Title: TBA (special colloquium) Date: 10/04/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall No abstract available.
15405	Monday 10/8 4:10 PM	Selman Akbulut, MSU	A simple family of infinitely many absolutely exotic manifolds New Window Topology Speaker: Selman Akbulut, MSU Title: A simple family of infinitely many absolutely exotic manifolds Date: 10/08/2018 Time: 4:10 PM - 5:30 PM Place: C304 Wells Hall I wıll demonstrate a smooth 4-manifold M, obtained by attaching a 2-handle to B^4 along a certain knot K in S^3, which admits infinitely many absolutely exotic copies M_n, n=0,1,2.., such that each copy M_n is obtained by attaching 2-handle to a fixed compact smooth contractible manifold W along its boundary Y, along the iterates f^{n}(c) of a knot c in Y by a diffeomorphism f: Y---> Y. This generalizes the example I gave in “An exotic 4-manifold, Jour. of Diff. Geom. 33, (1991)” which corresponds to the n=1 case.
15409	Wednesday 10/10 4:00 PM	Sanjay Kumar	TBD New Window Student Geometry/Topology Speaker: Sanjay Kumar Title: TBD Date: 10/10/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall No abstract available.
15390	Wednesday 10/10 4:10 PM	N. K. Nikolski, University of Bordeaux	Dilated systems and multivariable analysis New Window Analysis and PDE Speaker: N. K. Nikolski, University of Bordeaux Title: Dilated systems and multivariable analysis Date: 10/10/2018 Time: 4:10 PM - 5:00 PM Place: C517 Wells Hall Geometric L^2(0,1) properties of dilated function systems D(f)= {f(kx): k= 1,2,...} are discussed, as completeness, Riesz basis property, etc. (Completeness of D(f) for f(x)= 1/x-[1/x] is equivalent to the Riemann Hypothesis). The Bohr's lift techniques permit to explain (all) known results and show some new, as well as to discuss open problems.
15379	Thursday 10/11 2:00 PM	Matthew Stoffregen, MIT	An infinite-rank summand of the homology cobordism group New Window Geometry and Topology Speaker: Matthew Stoffregen, MIT Title: An infinite-rank summand of the homology cobordism group Date: 10/11/2018 Time: 2:00 PM - 3:00 PM Place: C304 Wells Hall This talk explains a generalization of the techniques that Hom introduced to construct an infinite-rank summand of the topologically slice knot concordance group. We generalize Hom's epsilon-invariant to the involutive Heegaard Floer homology constructed by Hendricks-Manolescu. As an application, we see that there is an infinite-rank summand of the homology cobordism group, generated by Seifert spaces. The talk will contain a review of involutive Floer homology. This is joint work with Irving Dai, Jen Hom, and Linh Truong.
14349	Thursday 10/11 4:10 PM	Deanna Needell, University of California, Los Angeles	TBA New Window Colloquium Speaker: Deanna Needell, University of California, Los Angeles Title: TBA Date: 10/11/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall No abstract available.
15410	Wednesday 10/17 4:00 PM	Michael Shultz	TBD New Window Student Geometry/Topology Speaker: Michael Shultz Title: TBD Date: 10/17/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall No abstract available.
15391	Wednesday 10/17 4:10 PM	Irina Holmes, MSU and Texas A&M	Bellman and Bollobas Functions New Window Analysis and PDE Speaker: Irina Holmes, MSU and Texas A&M Title: Bellman and Bollobas Functions Date: 10/17/2018 Time: 4:10 PM - 5:00 PM Place: C517 Wells Hall No abstract available.
14361	Thursday 10/18 4:10 PM	Frank Morgan, Williams College	Double Soap Bubbles and Densities New Window Colloquium Speaker: Frank Morgan, Williams College Title: Double Soap Bubbles and Densities Date: 10/18/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall The familiar double soap bubble is the least-area way to enclose and separate two given volumes in Euclidean space. What if you give space a density, such as r^2 or e^r^2 or e^-r^2? The talk will include recent results and open questions. Students welcome.
15411	Wednesday 10/24 4:00 PM	Woongbae Park	TBD New Window Student Geometry/Topology Speaker: Woongbae Park Title: TBD Date: 10/24/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall No abstract available.
15406	Wednesday 10/24 4:10 PM	A. N. Karapetyants, Southern Federal University, Rostov on Don, Russia	On Bergman type spaces of functions of nonstandard growth and some related questions. New Window Analysis and PDE Speaker: A. N. Karapetyants, Southern Federal University, Rostov on Don, Russia Title: On Bergman type spaces of functions of nonstandard growth and some related questions. Date: 10/24/2018 Time: 4:10 PM - 5:00 PM Place: C517 Wells Hall We study various Banach spaces of holomorphic functions on the unit disc and half plane. As a main question we investigate the boundedness of the corresponding holomorphic projection. We exploit the idea of V.P.Zaharyuta, V.I.Yudovich (1962) where the boundedness of the Bergman projection in Lebesgue spaces was proved using Calderon-Zygmund operators. We treat the cases of variable exponent Lebesgue space, Orlicz space, Grand Lebesgue space and variable exponent generalized Morrey space. The major idea is to show that the approach can be applied to a wide range of function spaces. This opens a door in a sense for introducing and studying new function spaces of Bergman type in complex analysis. We also study the rate of growth of functions near the boundary in spaces under consideration and their approximation by mollifying dilations.
15386	Thursday 10/25 2:00 PM	William Worden, Rice University	TBA New Window Geometry and Topology Speaker: William Worden, Rice University Title: TBA Date: 10/25/2018 Time: 2:00 PM - 3:00 PM Place: C304 Wells Hall No abstract available.
15412	Wednesday 10/31 4:00 PM	Wenchuan Tian	TBD New Window Student Geometry/Topology Speaker: Wenchuan Tian Title: TBD Date: 10/31/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall No abstract available.
15387	Thursday 11/1 2:00 PM	Yuanqi Wang	TBA New Window Geometry and Topology Speaker: Yuanqi Wang Title: TBA Date: 11/01/2018 Time: 2:00 PM - 3:00 PM Place: C304 Wells Hall No abstract available.
15382	Thursday 11/1 4:10 PM	Rustum Choksi, McGill University	TBA New Window Colloquium Speaker: Rustum Choksi, McGill University Title: TBA Date: 11/01/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall No abstract available.
15413	Wednesday 11/7 4:00 PM	Abhishek Mallick	TBD New Window Student Geometry/Topology Speaker: Abhishek Mallick Title: TBD Date: 11/07/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall No abstract available.
13346	Thursday 11/8 2:00 PM	Jonathan Campbell, Vanderbilt University	TBA New Window Geometry and Topology Speaker: Jonathan Campbell, Vanderbilt University Title: TBA Date: 11/08/2018 Time: 2:00 PM - 3:00 PM Place: C304 Wells Hall No abstract available.
14362	Thursday 11/8 4:10 PM	Jared Speck	TBA New Window Colloquium Speaker: Jared Speck Title: TBA Date: 11/08/2018 Time: 4:10 PM - 5:00 PM Place: C304 Wells Hall No abstract available.
15414	Wednesday 11/14 4:00 PM	Hitesh Gakhar	TBD New Window Student Geometry/Topology Speaker: Hitesh Gakhar Title: TBD Date: 11/14/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall No abstract available.
15392	Wednesday 11/14 4:10 PM	Dominique Maldague, UC Berkeley	TBA New Window Analysis and PDE Speaker: Dominique Maldague, UC Berkeley Title: TBA Date: 11/14/2018 Time: 4:10 PM - 5:00 PM Place: C517 Wells Hall No abstract available.
14374	Thursday 11/15 2:00 PM	Ian Zemke, Princeton University	TBA New Window Geometry and Topology Speaker: Ian Zemke, Princeton University Title: TBA Date: 11/15/2018 Time: 2:00 PM - 3:00 PM Place: C304 Wells Hall No abstract available.
15415	Wednesday 11/21 4:00 PM	Gorapada Bera	TBD New Window Student Geometry/Topology Speaker: Gorapada Bera Title: TBD Date: 11/21/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall No abstract available.
15416	Wednesday 11/28 4:00 PM	Brandon Bavier	TBD New Window Student Geometry/Topology Speaker: Brandon Bavier Title: TBD Date: 11/28/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall No abstract available.
15380	Thursday 11/29 2:00 PM	Dominic Culver, University of Illinois Urbana-Champaign	TBA New Window Geometry and Topology Speaker: Dominic Culver, University of Illinois Urbana-Champaign Title: TBA Date: 11/29/2018 Time: 2:00 PM - 3:00 PM Place: C304 Wells Hall No abstract available.
15417	Wednesday 12/5 4:00 PM	Zhe Zhang (Alan)	TBD New Window Student Geometry/Topology Speaker: Zhe Zhang (Alan) Title: TBD Date: 12/05/2018 Time: 4:00 PM - 5:00 PM Place: A202 Wells Hall No abstract available.
15397	Thursday 12/6 2:00 PM	Lev Tovstopyat-Nelip , Boston College	TBA New Window Geometry and Topology Speaker: Lev Tovstopyat-Nelip , Boston College Title: TBA Date: 12/06/2018 Time: 2:00 PM - 2:50 PM Place: C304 Wells Hall No abstract available.

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Department of Mathematics
Michigan State University
619 Red Cedar Road
C212 Wells Hall
East Lansing, MI 48824
Phone: (517) 353-0844
Fax: (517) 432-1562

College of Natural Science

Seminars By Semester

Analysis and PDE

Applied Mathematics

Applied Mathematics

Geometry and Topology

Seminar in Cluster algebras

Applied Mathematics

Student Algebra

Analysis and PDE

Student PDE

Geometry and Topology

Seminar in Cluster algebras

Colloquium

Applied Mathematics

Student Algebra

Topology

Conversations among Colleagues

Student Geometry/Topology

Analysis and PDE

Seminar in Cluster algebras

Colloquium

Graduate Program Seminar

Graduate Program Seminar

Student Algebra

Student Geometry/Topology

Student PDE

Geometry and Topology

Seminar in Cluster algebras

Colloquium

Topology

Student Geometry/Topology

Analysis and PDE

Mathematical Physics and Gauge Theory

Geometry and Topology

Colloquium

Topology

Student Geometry/Topology

Analysis and PDE

Geometry and Topology

Colloquium

Student Geometry/Topology

Analysis and PDE

Colloquium

Student Geometry/Topology

Analysis and PDE

Geometry and Topology

Student Geometry/Topology

Geometry and Topology

Colloquium

Student Geometry/Topology

Geometry and Topology

Colloquium

Student Geometry/Topology

Analysis and PDE

Geometry and Topology

Student Geometry/Topology

Student Geometry/Topology

Geometry and Topology

Student Geometry/Topology

Geometry and Topology

Seminars

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