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DTSTART;TZID=America/New_York:20260205T133000
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UID:10003872-1770298200-1770301800@cmsa.fas.harvard.edu
SUMMARY:Index from a point
DESCRIPTION:Differential Geometry and Physics Seminar  \nSpeaker: Monica Jinwoo Kang\, Texas A&M University \nTitle: Index from a point \nAbstract: We argue that protected data of 4d N=2 SCFTs admits a purely algebro-geometric characterization. We conjecture that both the Macdonald index (and hence the Schur index) and the Higgs branch are encoded by a bifiltered affine scheme determined by OPE nilpotency and decoupling relations. Focusing on Argyres–Douglas theories\, where the Higgs branch is a point\, we show that this geometric construction suffices to reconstruct the full Macdonald index. This is based on recent works with Craig Lawrie and Jaewon Song.
URL:https://cmsa.fas.harvard.edu/event/dgphys__2526/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Differential Geometry and Physics Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/DG-Physics-Seminar-2.5.26_1-scaled.png
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DTSTART;TZID=America/New_York:20260205T144500
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CREATED:20260122T151728Z
LAST-MODIFIED:20260202T164823Z
UID:10003873-1770302700-1770306300@cmsa.fas.harvard.edu
SUMMARY:On E7+1/2 gauge theory
DESCRIPTION:Differential Geometry and Physics Seminar  \nSpeaker: Yinan Wang\, Peking University \nTitle: On E7+1/2 gauge theory\n\nAbstract: We propose that an exotic gauge theory based on the intermediate Lie algebra E7+1/2 naturally appears in the landscape of 6d F-theory. We give strong evidence of this proposal with 6d anomaly cancellation\, dual M-theory geometry and elliptic genus of the single-string worldsheet CFT. 
URL:https://cmsa.fas.harvard.edu/event/dgphys2526_2/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Differential Geometry and Physics Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/DG-Physics-Seminar-2.5.26_2-scaled.png
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DTSTART;TZID=America/New_York:20260205T160000
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DTSTAMP:20260408T153521
CREATED:20251223T202550Z
LAST-MODIFIED:20251223T202550Z
UID:10003861-1770307200-1770310800@cmsa.fas.harvard.edu
SUMMARY:Algebra Seminar
DESCRIPTION:Algebra Seminar \n 
URL:https://cmsa.fas.harvard.edu/event/algebra-seminar_2526/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Algebra Seminar
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