RIT on Geometry and Physicshttp://www-math.umd.edu/research/seminars.html Organizational Meeting http://www-math.umd.edu/research/seminars.html Thu, 29 Aug 2019 15:30:00 EDT Where: MTH 1313

]]> Introduction to TQFTs (topological quantum field theories) http://www-math.umd.edu/research/seminars.html Thu, 05 Sep 2019 15:30:00 EDT Where: Kirwan Hall 1313

Speaker: Jacob Erickson (UMCP) -
Abstract: This will be a simple introduction to topological quantum field theories, following Atiyah. See references 1 and 2 on the RIT web page.
]]> 1-dimensional TQFTs http://www-math.umd.edu/research/seminars.html Thu, 12 Sep 2019 15:30:00 EDT Where: Kirwan Hall 1313
Speaker: Jacob Erickson (UMCP) -
Abstract: Continuing from last week, this will be a quick review of what TQFTs look like in dimension 1, with concrete examples and computations.
]]> Introduction to SPT (symmetry-protected topological) phases http://www-math.umd.edu/research/seminars.html Thu, 19 Sep 2019 15:30:00 EDT Where: Kirwan Hall 1313
Speaker: Naren Manjunath (UMCP Physics) -
Abstract: This will be an introduction to the idea of symmetry-protected phases of matter.
]]> Introduction to invertible TQFTs http://www-math.umd.edu/research/seminars.html Thu, 26 Sep 2019 15:30:00 EDT Where: Kirwan Hall 1313
Speaker: Ian Teixeira (UMCP Math) -
]]> Frobenius Algebras and the Classification of 2-Dimensional TQFTs http://www-math.umd.edu/research/seminars.html Thu, 03 Oct 2019 15:30:00 EDT Where: MTH (Kirwan Hall) 1313
Speaker: Steven Jin (UMCP Math) -

Abstract: References for this subject are Lowell Abrams, Two-dimensional topological quantum field theories and Frobenius algebras, J. Knot Theory Ramifications 5 (1996), no. 5, 569-587, and Stephen Sawin, Direct sum decompositions and indecomposable TQFTs, J. Math. Phys. 36 (1995), no. 12, 6673-6680.
]]> Topological Aspects of Gauge Fields http://www-math.umd.edu/research/seminars.html Thu, 10 Oct 2019 15:30:00 EDT Where: MTH (Kirwan Hall) 1313
Speaker: Srivatsa Tata (UMCP Physics) -

Abstract: This will be about “topological” terms in gauge theories, for example terms involving Chern classes and Chern-Simons terms.
]]> Topological Phases and Anomalies http://www-math.umd.edu/research/seminars.html Thu, 17 Oct 2019 15:30:00 EDT Where: MTH (Kirwan Hall) 1313
Speaker: Jerry Yao-Chieh Hu (UMCP Physics) -

Abstract: This will include perturbative anomalies for continuous symmetries and projective phases and group cohomology.
]]> Topological Phases and Anomalies, II http://www-math.umd.edu/research/seminars.html Thu, 24 Oct 2019 15:30:00 EDT Where: MTH (Kirwan Hall) 1313
Speaker: Jerry Yao-Chieh Hu (UMCP Physics) -


Abstract: This will continue the discussion from last time, with an emphasis on projective phases and group cohomology. You can find notes at
https://sites.google.com/view/jerry-yc-hu/miscellaneous
]]> Pell surfaces, joint with Algebra/Number Theory http://www-math.umd.edu/research/seminars.html Thu, 31 Oct 2019 15:30:00 EDT Where: Kirwan Hall 1313

Speaker: Janos Kollar (Princeton Univ.) - https://web.math.princeton.edu/~kollar/
Abstract: We describe recent results on polynomial solutions of Pell's
equation, a topic started by Abel. We then use these results to exhibit
some unsolvable problems in algebraic geometry.
]]> Chern-Simons Theory with Finite Gauge Group http://www-math.umd.edu/research/seminars.html Thu, 07 Nov 2019 15:30:00 EST Where: MTH (Kirwan Hall) 1313
Speaker: Sze Hong Kwong (UMCP Math) -

Abstract: This will be based on the paper of Freed and Quinn in Comm. Math. Physics 156 (1993), no. 3, 435-472, arXiv:hep-th/9111004.
]]> Chern-Simons Theory with Finite Gauge Group, part 2 http://www-math.umd.edu/research/seminars.html Thu, 14 Nov 2019 15:30:00 EST Where: MTH (Kirwan Hall) 1313
Speaker: Sze Hong Kwong (UMCP Math) -

Abstract: This will be based on the paper of Freed and Quinn in Comm. Math. Physics 156 (1993), no. 3, 435-472, arXiv:hep-th/9111004.
]]> Fermionic SPT states, spin TQFTs and fermionic path integrals http://www-math.umd.edu/research/seminars.html Thu, 21 Nov 2019 15:30:00 EST Where: MTH (Kirwan Hall) 1313
Speaker: Jerry Yao-Chieh Hu (UMCP Physics) -


Abstract: This will continue the discussion from before. You can find notes at
https://sites.google.com/view/jerry-yc-hu/miscellaneous
]]> Extended TQFTs and the extended cobordism hypothesis http://www-math.umd.edu/research/seminars.html Thu, 05 Dec 2019 15:30:00 EST Where: 1313 Kirwan Hall

Speaker: Noah Chrein (UMCP Math) -
Abstract: This will be a survey of some of the ideas in Jacob Lurie's famous 2008 paper, "On the classification of topological field theories"
]]> Organizational Meeting for Spring Semester http://www-math.umd.edu/research/seminars.html Thu, 30 Jan 2020 15:30:00 EST Where: MTH 1313

]]> Review of SPT states http://www-math.umd.edu/research/seminars.html Thu, 06 Feb 2020 15:30:00 EST Where: MTH (Kirwan Hall) 1313
Speaker: Jerry Yao-Chieh Hu (UMCP Physics) -
]]> Kitaev's 10-fold way http://www-math.umd.edu/research/seminars.html Thu, 13 Feb 2020 15:30:00 EST Where: MTH (Kirwan Hall) 1313

Speaker: Eric Kuo (UMCP Physics) -
Abstract:This talk will be about the famous paper "Periodic table for topological insulators and superconductors" by Alexei Kitaev, https://arxiv.org/abs/0901.2686.
]]> Kitaev's 10-fold way (cont'd) http://www-math.umd.edu/research/seminars.html Thu, 20 Feb 2020 15:30:00 EST Where: MTH (Kirwan Hall) 1313

Speaker: Eric Kuo (UMCP Physics) -
Abstract: More on Kitaev's paper https://arxiv.org/abs/0901.2686.
]]> 2D Spin TQFTs and the Dimer Model http://www-math.umd.edu/research/seminars.html Thu, 27 Feb 2020 15:30:00 EST Where: MTH (Kirwan Hall) 1313

Speaker: Sri Tata (UMCP Physics) -
Abstract : see notes.
]]> 2D Pin TQFTs and the Dimer Model (cont'd) http://www-math.umd.edu/research/seminars.html Thu, 05 Mar 2020 15:30:00 EST Where: MTH (Kirwan Hall) 1313,

Speaker: Sri Tata (UMCP Physics) -
Abstract: See notes.
]]> Spin TQFTs http://www-math.umd.edu/research/seminars.html Thu, 12 Mar 2020 15:30:00 EDT Where: MTH (Kirwan Hall) 1313
Speaker: Jerry Yao-Chieh Hu (UMCP Physics) -
]]> Homotopy Theoretic Computations of SPT Phases http://www-math.umd.edu/research/seminars.html Thu, 02 Apr 2020 15:30:00 EDT Where: Join URL: https://umd.zoom.us/j/614678017

Speaker: Steven Jin (UMd) -
Abstract: This will be based on work of Freed and Hopkins.
]]> Homotopy Theoretic Computations of SPT Phases http://www-math.umd.edu/research/seminars.html Thu, 09 Apr 2020 15:30:00 EDT Where: Join URL: https://umd.zoom.us/j/614678017

Speaker: Steven Jin (UMd) -
Abstract: This will be based on work of Freed and Hopkins.
]]> Homotopy Theoretic Computations of SPT Phases http://www-math.umd.edu/research/seminars.html Thu, 16 Apr 2020 15:30:00 EDT Where: Join URL: https://umd.zoom.us/j/614678017,
Speaker: Ian Teixeira (UMd) -
Abstract: This will be based on work of Freed and Hopkins.
]]> More on the Freed-Hopkins classification of invertible phases http://www-math.umd.edu/research/seminars.html Thu, 23 Apr 2020 15:30:00 EDT Where: via Zoom, link will be sent

Speaker: Jonathan Rosenberg (UMd) -
Abstract: References: arXiv:1604.06527 and arXiv:1901.06419
]]> The paper of Freed-Moore on twisted equivariant matter http://www-math.umd.edu/research/seminars.html Thu, 30 Apr 2020 15:30:00 EDT Where: via Zoom, link will be sent,
Speaker: Jonathan Rosenberg (UMd) -
Abstract: This is about the paper of Freed and Moore, Ann. Henri Poincaré 14 (2013), no. 8, 1927-2023.
]]> The paper of Freed-Moore on twisted equivariant matter http://www-math.umd.edu/research/seminars.html Thu, 07 May 2020 15:30:00 EDT Where: via Zoom, link will be sent,
Speaker: Jonathan Rosenberg (UMd) -
Abstract: This is about the paper of Freed and Moore, Ann. Henri Poincaré 14 (2013), no. 8, 1927-2023.
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