Speaker: Shi Cheng (SIMIS and Fudan University)
Time: 2025-12-31 16:00-18:00
Location: 1710, SIMIS
Zoom Meeting ID: 832 2099 7595 Passcode: 974460
摘要：
Since the discovery of 3d3d correspondence, three-manifolds are noticed to be a powerful tool to construct 3d N=2 gauge theories, in parallel to Calabi-Yau manifolds. However, both are not completely established yet. In this talk, we focus on the three-manifold approach, which itself also has two parallel methods. One is the surgery of three-manifolds, found by Gadde, Gukov, and Putrov in paper “Fivebranes and 4-manifolds”. Another one is the double branched cover, found by Cecotti, Córdova, and Vafa in “Braids, walls, and mirrors”. By using topological ideas, we try to complete and unify these two methods.
About Speaker:
Shi Cheng is currently an Assistant Professor at SIMIS and Fudan University. He previously served as a Postdoctoral Research Scholar at Fudan University. He obtained his Ph.D in physics at the University of Warsaw in 2022. His current research interests mainly focus on supersymmetric gauge theories and related low-dimensional manifolds.
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