Speaker: FAN Ziying, School of Public Economics and Management, Shanghai University of Finance and EconomicsChair: FANG Hongsheng, School of economics, Zhejiang UniversityVenue: Tencent meeting ID: 641 703 022

Speaker: Ruobing Zhang, Department of Mathematics, Princeton UniversityVenue: Tencent Meeting ID: 811 438 125Abstract: This talk focuses on the recent resolution of three folklore conjectures in the field (joint with Song Sun). (1) Any volume collapsed limit of unit-diameter Calabi-Yau metrics on the K3 manifold is isometric to one of the following: a flat 3-torus quotient by revolution, a special Kähler metric on a 2-sphere, and the unit interval. (2) Any gravitational instanton, as a bubble limit, has one of the six asymptotic model geometries (with optimal asymptotic rates): ALE, ALF, ALG, ALG*, ALH, and ALH*. (3) Any gravitational instanton can be holomorphically compactified to be an open dense subset of a compact algebraic surface. With the above classification results, we obtain a rather complete picture of degenerating Calabi-Yau manifolds in complex dimension two.g

Speaker: Elizabeth Chin, Amecican Art Center College of Design, American AnthropologistChair: LIANG Yongjia, Department of sociology, Zhejiang UniversityScan the QR code to join the meeting.

Speaker: Dr. Pavel Caha, graduated fromthe University of Tromsø, Norway, and now an assistant professor at Masaryk University in Brno, has published four books and more than 30 papers in international journals and conferences such as Journal of Linguistics, Glossa, Studia Linguistica, Acta Linguistica Academica, etc.Dr. Marcin Wągiel, graduated from Masaryk University in Brno, Czech Republic, has published two monographs and more than 20 papers in international journals and conferences such as Acta Linguistica Academica, Catalan Journal of Linguistics.Venue:Room 1111, Building 4, Chengjunyuan, Zijingang Campus

Speaker: Edward M. Callaway, Professor of Salk Institute, Co-Director of Kavli Institute for Brain and MindVenue: Scan the QR code to watch live

Speaker: Owen Griffiths, Department of Philosophy, University College LondonChair: Bruno Bentzen, School of Philosophy, Zhejiang UniversityVenue: Zoom meeting ID: 282 901 4273Watch Live: https://b23.tv/9YZ8UR5 Abstract:Ontological monists hold that all existents exist in exactly the same sense. Ontological pluralists hold that there are many different notions of existence, e.g. concrete objects like tables and chairs exist in a different way to abstract objects like numbers and sets. Correspondingly, the monist will want the familiar existential quantifier as a primitive logical constant, whereas the pluralist will want distinct ones, e.g. for abstract and concrete existence.This dialogue examines how the debate between the monist and pluralist relates to standard tests for logicality. We first consider the best-known semantic test for logicality—isomorphism invariance—and then the best-known syntactic test—inferentialism. In both cases, we argue that the tests deliver judgements about logicality that favour the monist.

Speaker: Daniel Rothschild, Professor of Philosophy of Language at University College LondonVenue: Zoom meeting ID: 2829014273Abstract: Many proponents of Bayesianism it as giving general norms governing how we should revise our beliefs in the light of new evidence. I argue for skepticism about the scope of Bayesian norms, arguing that their range of application may be restricted to a rather narrow range of cases. I examine other ways in which Bayesianism may be taken as a guide to our doxastic processes.

Speaker: JIN Yucheng ('21, Electrical and Computer Engineering), graduate student in the EECS School of the University of California, BerkeleyScan the QR code to join the meeting.

Speaker: SUN Liuquan, Chinese Academy of SciencesVenue: Tencent Meeting ID: 922-418-797Abstract: In this talk, we develop variable screening methods for several varying coefficient hazards models, including varying coefficient additive hazards model, varying coefficient Cox model, and the varying coefficient hazards models of single-index form. The proposed methods enjoy the sure screening property, and some iterative procedures are developed. Simulation studies are conducted to evaluate the finite sample performances of the proposed method. Applications to real dataexamples are also provided.