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SUMMARY:Class S of Type D
DTSTART;VALUE=DATE-TIME:20260528T070000Z
DTEND;VALUE=DATE-TIME:20260528T080000Z
DTSTAMP;VALUE=DATE-TIME:20260523T135500Z
UID:indico-event-29677@indico.ihep.ac.cn
DESCRIPTION:Speakers: Jiakang  Bao (University of Tokyo)\nIn this talk\, I
  will consider the orbi-instanton theories and their dimensional reduction
 s on the 2-torus. In particular\, I shall focus on the cases of type D. Un
 like the A-type ones\, it turns out that not all of the theories are descr
 ibed by the class S theories (with three untwisted regular punctures on th
 e sphere). I will mention how the class S theories (and the 3d mirror quiv
 ers) can be read off from the tensor branch descriptions of the 6d theorie
 s. As the orbi-instanton theories are labelled by the discrete homomorphis
 ms from the dicyclic groups to E_8\, the discussions would also shed light
  on the classifications of these homomorphisms\, such as some partial labe
 ls of the homomorphisms\, and certain one-to-two correspondences due to th
 e theta angles (which is similar to but different from the one-to-two corr
 espondences for the very even D-type nilpotent orbits). Moreover\, I will 
 discuss some Higgsings that are “hidden” from the punctures\, but are 
 still manifest from the 6d. This is based on the work with Noppadol Mekare
 eya\, Gabi Zafrir\, and Hao Y. Zhang.\n\nBio: Jiakang Bao is a postdoc at 
 the University of Tokyo. He completed his PhD at City\, University of Lond
 on under the supervision of Yang-Hui He. His research mainly focuses on su
 persymmetric gauge theories and their connections to different aspects in 
 mathematics.\nhttps://indico.ihep.ac.cn/event/29677/
LOCATION:B105 (CHEP)
URL:https://indico.ihep.ac.cn/event/29677/
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