BEGIN:VCALENDAR
VERSION:2.0
PRODID:Mathematics Seminar Calendar
BEGIN:VEVENT
UID:20170921T031911-4073@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:Thurston's metric on Teichmueller spaces of flat n-tori
DESCRIPTION:Speaker\: Mark Greenfield, University of Michigan\r\nSeveral interesting metrics have been defined for Teichmueller spaces of hyperbolic surfaces. However, analogous metrics on the Teichmueller space of flat n-tori have not been as well studied. After reviewing some background on Teichmueller theory, we will define an analog of Thurston's metric for these spaces. We find that in dimension n=2, it agrees with the hyperbolic metric. In particular, this gives a new way to realize the hyperbolic plane as the moduli space of marked flat tori. Time permitting, we will describe the corresponding situation in dimension n>2. This work is joint with Lizhen Ji.\r\n
LOCATION:C304 Wells Hall
DTSTART:20170907T180000Z
DTEND:20170907T190000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=4073
END:VEVENT
BEGIN:VEVENT
UID:20170921T031911-4102@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:On the braid index and the fractional Dehn twist coefficient
DESCRIPTION:Speaker\: Diana Hubbard, University of Michigan\r\nThe braid index of a knot is the least number of strands necessary to represent the knot as a closure of a braid on that many strands. If we view a braid as an element of the mapping class group of the punctured disk, its fractional Dehn twist coefficient (FDTC) is a number that measures the amount of twisting it exerts about the boundary of the disk. In this talk I will demonstrate that n-braids with FDTC larger than n-1 realize the braid index of their closure. The proof uses the concordance homomorphism Upsilon arising from knot Floer homology as a crucial tool. This is joint work with Peter Feller.
LOCATION:C304 Wells Hall
DTSTART:20170914T180000Z
DTEND:20170914T190000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=4102
END:VEVENT
BEGIN:VEVENT
UID:20170921T031911-4089@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:The deformed Hermitian-Yang-Mills equation
DESCRIPTION:Speaker\: Adam Jacob, UC Davis\r\nIn this talk I will discuss a complex generalization of the special Lagrangian graph equation of Harvey-Lawson. I will discuss methods for constructing solutions, and relate the solvability of the equation with notions of stability from symplectic and algebraic geometry. This is joint work with T.C. Collins and S.-T. Yau.
LOCATION:C304 Wells Hall
DTSTART:20170921T180000Z
DTEND:20170921T190000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=4089
END:VEVENT
BEGIN:VEVENT
UID:20170921T031911-4105@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:Turaev Viro invariants and Gromov norm
DESCRIPTION:Speaker\: Renaud Detcherry, MSU\r\nAccording to Chen and Yang's volume conjecture, the asymptotics of the Turaev-Viro invariants of a 3-manifold predicts its hyperbolic volume. We show a compatibility between Turaev-Viro invariants and JSJ-decomposition and get an ineqality relating Turaev-Viro invariants and Gromov norm.
LOCATION:C304 Wells Hall
DTSTART:20170928T180000Z
DTEND:20170928T190000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=4105
END:VEVENT
BEGIN:VEVENT
UID:20170921T031911-4124@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:Wall-crossing for the Seiberg-Witten equation with two spinors
DESCRIPTION:Speaker\: Thomas Walpuski, MSU\r\nUnlike for the classical Seiberg-Witten equation, compactness fails for the Seiberg-Witten equation with multiple spinors. This non-compactness is caused by Fueter sections with values in the moduli space of charge 1 SU(n) ASD instantons. In the simplest case, n = 2, those are Z/2 harmonic spinors. In this talk I will explain in more detail what the preceding sentences mean and then discuss the wall-crossing caused by the appearance of (non-singular) Z/2 harmonic spinors.\r\n\r\nThis is joint work with Aleksander Doan.
LOCATION:C304 Wells Hall
DTSTART:20171005T180000Z
DTEND:20171005T190000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=4124
END:VEVENT
BEGIN:VEVENT
UID:20170921T031911-4115@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:seminar
DESCRIPTION:Speaker\: Elmas Irmak, Bowling Green State University\r\n
LOCATION:C304 Wells Hall
DTSTART:20171019T180000Z
DTEND:20171019T190000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=4115
END:VEVENT
BEGIN:VEVENT
UID:20170921T031911-5128@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:Meera Mainkar
DESCRIPTION:Speaker\: \r\nTBA
LOCATION:C304 Wells Hall
DTSTART:20171102T180000Z
DTEND:20171102T190000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=5128
END:VEVENT
BEGIN:VEVENT
UID:20170921T031911-4120@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:TBA
DESCRIPTION:Speaker\: Elizabeth Munch, MSU\r\n
LOCATION:C304 Wells Hall
DTSTART:20171116T190000Z
DTEND:20171116T200000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=4120
END:VEVENT
BEGIN:VEVENT
UID:20170921T031911-5131@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:Thanksgiving---No seminar
DESCRIPTION:Speaker\: \r\n
LOCATION:C304 Wells Hall
DTSTART:20171123T190000Z
DTEND:20171123T200000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=5131
END:VEVENT
BEGIN:VEVENT
UID:20170921T031911-5129@math.msu.edu
DTSTAMP:20170921T031911Z
SUMMARY:TBA
DESCRIPTION:Speaker\: J.D. Quigley, University of Notre Dame\r\n
LOCATION:C304 Wells Hall
DTSTART:20171130T190000Z
DTEND:20171130T200000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=5129
END:VEVENT
END:VCALENDAR