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X-ORIGINAL-URL:https://cmsa.fas.harvard.edu
X-WR-CALDESC:Events for CMSA
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BEGIN:VTIMEZONE
TZID:America/New_York
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TZOFFSETFROM:-0500
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DTSTART:20160313T070000
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DTSTART:20161106T060000
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20170215T150000
DTEND;TZID=America/New_York:20171214T160000
DTSTAMP:20260730T102338
CREATED:20240124T064532Z
LAST-MODIFIED:20240124T065049Z
UID:10001332-1487170800-1513267200@cmsa.fas.harvard.edu
SUMMARY:Random Matrix & Probability Theory Seminar (2016-2017)
DESCRIPTION:The random matrix and probability theory will be every Wednesday from 3pm-4pm in CMSA Building\, 20 Garden Street\, Room G10.
URL:https://cmsa.fas.harvard.edu/event/random-matrix-probability-theory-seminar-2016-2017/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Random Matrix & Probability Theory Seminar
ATTACH;FMTTYPE=image/jpeg:https://cmsa.fas.harvard.edu/media/DSC_0025-768x512-1.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20170907T170000
DTEND;TZID=America/New_York:20170907T180000
DTSTAMP:20260730T102338
CREATED:20230717T172748Z
LAST-MODIFIED:20250305T183135Z
UID:10000035-1504803600-1504807200@cmsa.fas.harvard.edu
SUMMARY:Noga Alon Public Talk
DESCRIPTION:Noga Alon (Tel Aviv University) will be giving a public talk on September 7\, 2017\,as part of the program on combinatorics and complexity hosted by the CMSA during AY17-18.  The talk will be at 5:00pm in Askwith Hall\, 13 Appian Way\, Cambridge\, MA. \nTitle: Graph Coloring: Local and Global \nAbstract: Graph Coloring is arguably the most popular subject in Discrete Mathematics\, and its combinatorial\, algorithmic and computational aspects have been studied intensively. The most basic notion in the area\, the chromatic number of a graph\, is an inherently global property. This is demonstrated by the hardness of computation or approximation of this invariant as well as by the existence of graphs with arbitrarily high chromatic number and no short cycles. The investigation of these graphs had a profound impact on Graph Theory and Combinatorics. It combines combinatorial\, probabilistic\, algebraic and topological techniques with number theoretic tools. I will describe the rich history of the subject focusing on some recent results. \n 
URL:https://cmsa.fas.harvard.edu/event/noga-alon-public-talk-9-7-17/
LOCATION:MA
CATEGORIES:Event,Public Lecture
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/Noga-Poster-2-1.png
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20170908T130000
DTEND;TZID=America/New_York:20170908T160000
DTSTAMP:20260730T102338
CREATED:20240209T112503Z
LAST-MODIFIED:20240209T112503Z
UID:10001855-1504875600-1504886400@cmsa.fas.harvard.edu
SUMMARY:Combinatorics & Complexity Seminar\, Fridays
DESCRIPTION:The seminar on Combinatorics and Complexity will be held every Friday from 1:00-4:00pm in CMSA Building\, 20 Garden Street\, Room G10. \nThe list of speakers for the upcoming academic year will be posted below and updated as details are confirmed. Titles and abstracts for the talks will be added as they are received. \nAdditional information on CMSA’s Combinatorics and Complexity program can be found here. \n  \n\n\n\nDate\nName\nTitle/Abstract\n\n\n09-08-17\n\nTBA\n\n\n09-15-2017\n\nTBA\n\n\n09-22-17\n\nTBA\n\n\n09-29-17\n\nTBA\n\n\n10-06-17\n\n TBA\n\n\n10-13-2017\n\nTBA\n\n\n10-20-2017\n\nTBA\n\n\n10-27-2017\n\nTBA\n\n\n11-03-2017\n\nTBA\n\n\n11-10-2017\n\nTBA\n\n\n11-17-2017\n\nTBA\n\n\n11-24-2017\n\nTBA\n\n\n12-01-2017\n\nTBA\n\n\n12-08-2017\n\n TBA
URL:https://cmsa.fas.harvard.edu/event/combinatorics-complexity-seminar-fridays/
LOCATION:MA
CATEGORIES:Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20170911T133800
DTEND;TZID=America/New_York:20170911T133800
DTSTAMP:20260730T102338
CREATED:20240213T101213Z
LAST-MODIFIED:20240213T101213Z
UID:10002400-1505137080-1505137080@cmsa.fas.harvard.edu
SUMMARY:9/11/2017 Mathematical Physics Seminar
DESCRIPTION:
URL:https://cmsa.fas.harvard.edu/event/9-11-2017-mathematical-physics-seminar/
LOCATION:MA
CATEGORIES:Mathematical Physics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20170914T150000
DTEND;TZID=America/New_York:20170914T160000
DTSTAMP:20260730T102338
CREATED:20240212T072955Z
LAST-MODIFIED:20240212T072955Z
UID:10001875-1505401200-1505404800@cmsa.fas.harvard.edu
SUMMARY:Algebraic Geometry Seminar\, Thursdays
DESCRIPTION:This seminar will not be held in the Spring 2018 Semester. \nThe Algebraic Geometry Seminar will be every Thursday from 3pm-4pm in CMSA Building\, 20 Garden Street\, Room G10. \nThe schedule will be updated as details are confirmed. \n  \n  \n\n\n\nDate\nName\nTitle/Abstract\n\n\n09-14-17\n Yu-Wei Fan (Harvard Math)\n\nEntropy of an autoequivalence on Calami-Yau manifolds \nAbstract:  We will recall the notion of entropy of an autoequivalence on triangulated categories\, and provide counterexamples of a conjecture by Kikuta-Takahashi. \n\n\n\n11-1-17 \n*5:00pm\, G10*\n Shamil Shakirov\, Harvard Math\n\nUndulation invariants of plane curves \nAbstract: “One of the general problems in algebraic geometry is to determine algorithmically whether or not a given geometric object\, defined by explicit polynomial equations (e.g. a curve or a surface)\, satisfies a given property (e.g. has singularities or other distinctive features of interest). A classical example of such a problem\, described by Cayley and Salmon in 1852\, is to determine whether or not a given plane curve of degree r > 3 has undulation points — the points where the tangent line meets the curve with multiplicity four. Cayley proved that there exists an invariant of degree (r – 3)(3 r – 2) that vanishes if and only if the curve has undulation points. We construct this invariant explicitly for quartics (r=4) as the determinant of a 21 times 21 matrix with polynomial entries\, and we conjecture a generalization for r = 5 \n\n\n\n11-2-17 \n \nAlexander Moll\, IHES\n\nHilbert Schemes from Geometric Quantization of Dispersive Periodic Benjamin-Ono Waves \nABSTRACT: By Grojnowski and Nakajima\, Fock spaces are cohomology rings of Hilbert scheme of points in the plane.  On the other hand\, by Pressley-Segal\, Fock spaces are spaces of J-holomorphic functions on the loop space of the real line that appear in geometric quantization with respect to the Kähler structure determined by the Sobolev regularity s= -1/2 and the Hilbert transform J.  First\, we show that the classical periodic Benjamin-Ono equation is a Liouville integrable Hamiltonian system with respect to this Kähler structure.  Second\, we construct an integrable geometric quantization of this system in Fock space following Nazarov-Sklyanin and describe the spectrum explicitly after a non-trivial rewriting of our coefficients of dispersion \ebar = e_1 + e_2 and quantization \hbar = – e_1 e_2 that is invariant under e_2 <-> e_1.  As a corollary of Lehn’s theorem\, our construction gives explicit creation and annihilation operator formulas for multiplication by new explicit universal polynomials in the Chern classes of the tautological bundle in the equivariant cohomology of our Hilbert schemes\, in particular identifying \ebar with the deformation parameter of the Maulik-Okounkov Yangian and \hbar with the handle-gluing element.  Our key ingredient is a simple formula for the Lax operators as elliptic generalized Toeplitz operators on the circle together with the spectral theory of Boutet de Monvel and Guillemin.  As time permits\, we discuss the relation of dispersionless \ebar -> 0 and semi-classical \hbar \rightarrow 0 limits to Nekrasov’s BPS/CFT Correspondence. \n\n\n\n11-9-17\n  TBD\n  TBD\n\n\n11-16-17\n TBD\n TBD\n\n\n11-23-17\n  TBD\n  TBD\n\n\n11-30-17\n  TBD\n  TBD\n\n\n12-7-17\n  TBD\n  TBD\n\n\n12-15-17\n  TBD\n  TBD
URL:https://cmsa.fas.harvard.edu/event/algebraic-geometry-seminar-thursdays/
LOCATION:MA
CATEGORIES:Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20170918T133900
DTEND;TZID=America/New_York:20170918T133900
DTSTAMP:20260730T102338
CREATED:20240213T100938Z
LAST-MODIFIED:20240213T100938Z
UID:10002396-1505741940-1505741940@cmsa.fas.harvard.edu
SUMMARY:9-18-17 Mathematical Physics Seminar
DESCRIPTION:
URL:https://cmsa.fas.harvard.edu/event/9-18-17-mathematical-physics-seminar/
LOCATION:MA
CATEGORIES:Mathematical Physics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20170927T134100
DTEND;TZID=America/New_York:20170927T134100
DTSTAMP:20260730T102338
CREATED:20240213T100715Z
LAST-MODIFIED:20240213T100715Z
UID:10002393-1506519660-1506519660@cmsa.fas.harvard.edu
SUMMARY:9-27-17 RM&PT Seminar
DESCRIPTION:
URL:https://cmsa.fas.harvard.edu/event/9-27-17-rmpt-seminar/
LOCATION:MA
CATEGORIES:Random Matrix & Probability Theory Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20170927T134200
DTEND;TZID=America/New_York:20170927T134200
DTSTAMP:20260730T102338
CREATED:20240213T100517Z
LAST-MODIFIED:20240213T100517Z
UID:10002388-1506519720-1506519720@cmsa.fas.harvard.edu
SUMMARY:9-27-17 Mathematical Physics Seminar
DESCRIPTION:
URL:https://cmsa.fas.harvard.edu/event/9-27-17-mathematical-physics-seminar/
LOCATION:MA
CATEGORIES:Mathematical Physics Seminar
END:VEVENT
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