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Seminar by Prof. Giulia De Rosi, Polytechnic University of Catalonia (UPC), Barcelona, Spain
Date
Speaker: Dr.Liangbing Luo,Queen’s University
Title: Discrete Approximation on Metric Measure
Spaces of Controlled Geometry via Graphs:
Dirichlet Forms and Harmonic Functions
Abstract:
Based on the approximation of a metric measure space via discrete graphs, we construct
a Dirichlet form. This Dirichlet form is comparable to the upper gradient energy and can
be realized as a -limit of a sequence of induced bilinear forms projected from the discrete
energy form on the approximating graphs. Moreover, we approximate harmonic functions
on a bounded domain with a prescribed Newton-Sobolev boundary data. Based on joint
work with A. Butaev and N. Shanmugalingam.
Date
Title: Mangroves… from text mentions in ancient times to biomes in modern open-world games
Speaker: Prof. Farid DAHDOUH-GUEBAS,Vrije Universiteit Brussel
Date
Description
Title: Universality in Eigenvalue/Vector Distributions of Random Tensors
Speaker: Naoki Sasakura, Yukawa Institute for Theoretical Physics, Kyoto University
Abstract:
Eigenvalues/vectors of tensors are a modern concept extending those of matrices. They appear in various non-linear contexts, such as spin glasses, general relativity, artificial intelligence, quantum information theory, string theory, and so on, while the matrix counterpart in linear-contexts. Understanding universal properties across various tensor eigen problems is important, since this assures their wide applicability. I talk about our recent finding of a universality of tensor eigenvalue/vector distributions, which has been achieved by systematically computing them using quantum field theoretical techniques.
Profile:
Naoki Sasakura obtained his PhD in Physics at Kyoto University. He subsequently held research at University of Tokyo, KEK, Tohoku University, and Niels Bohr Institute (Denmark). In 1997, he joined Department of Physics of Kyoto University, and moved to Yukawa Institute for Theoretical Physics of Kyoto University in 2000. His main interest is discretized approaches to quantum gravity/spacetime emergence, with particular interests in tensor models, while he also worked on supersymmetric gauge theories and string theory. He currently mainly focuses on research on eigenvalue/vector distributions of random tensors by using quantum field theoretical techniques.
Language: English
Target audience: General audience/everyone at OIST and beyond.
Freely accessible to all OIST members and guests without registration.
This talk will also be broadcast online via Zoom:
Meeting ID: 993 1216 5065
Passcode: 603487
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Seminar in English
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Dr. Eiichiro Ono, Senior General Manager/Research Specialist at Research Institute, Suntory Global Innovation Center Ltd., Kyoto, Japan
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Title: Some Almost Hermitian flows
Speaker: Prof. Casey Kelleher (Princeton University)
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Dr. Ai Shinobu, Specially Appointed Associate Professor, WPI-PRIMe, Osaka University
Date
Ana Kontrec, RIMS, Kyoto University
Title: On the structure of some subregular W-algebras
Date
Prof. Akihisa Osakabe
Graduate School of Science, Chiba University
Institute for Advanced Academic Research, Chiba University