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 Events
Hao Shen
Columbia University
Fri 20 Jan 2017, 3:00pm
Department Colloquium
seminar has been cancelled.
CANCELLED: Singular Stochastic Partial Differential Equations - How do they arise and what do they mean?
seminar has been cancelled.
Fri 20 Jan 2017, 3:00pm-4:00pm

Abstract

 
Systems with random fluctuations are ubiquitous in the real world. Stochastic PDEs are default models for these random systems, just as PDEs are default models for deterministic systems. However, a large class of such stochastic PDEs were poorly understood until very recently: the presence of very singular random forcing as well as nonlinearities render it challenging to interpret what one even means by a ``solution". The recent breakthroughs by M. Hairer, M. Gubinelli and other researchers including the speaker not only established solution theories for these singular SPDEs, but also led to an explosion of new questions. These include scaling limits of random microscopic models, development of numerical schemes, ergodicity of random dynamical systems and a new approach to quantum field theory. In this talk we will discuss the main ideas of the recent solution theories of singular SPDEs, and how these SPDEs arise as limits of various important physical models.
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Max Planck Institute Bonn
Wed 25 Jan 2017, 3:00pm SPECIAL
Department Colloquium
ESB 2012 (note special day)
From Feynman diagrams to commutative diagrams
ESB 2012 (note special day)
Wed 25 Jan 2017, 3:00pm-4:00pm

Abstract

Factorization algebras are local-to-global objects that play a role in quantum field theory akin to the role of sheaves in geometry: they conveniently organize complicated information. In the talk I will introduce this notion, give some concrete examples, and then explain how factorization algebras mediate between QFT and higher algebra. An important example will be Chern-Simons theory; ongoing work with Costello and Francis recovers quantum groups with formal parameter by combining Koszul duality with Feynman diagrams.

Note for Attendees

Tea and cookies will be served in the PIMS Lounge ESB 4133 at 2:45 p.m. before this special colloquium.
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Martin Fraas
Mon 30 Jan 2017, 3:00pm
Department Colloquium
ESB 2012
TBA
ESB 2012
Mon 30 Jan 2017, 3:00pm-4:00pm

Abstract


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University of Munich
Fri 3 Feb 2017, 3:00pm
Department Colloquium
ESB 2012
What are ground state phases of matter?
ESB 2012
Fri 3 Feb 2017, 3:00pm-4:00pm

Abstract

While thermal phases of matter (liquid water vs solid ice) are mathematically well understood, the theoretical understanding of ground state phases (at zero temperature) is incomplete. The discoveries of last year’s physics Nobel laureates provide a framework valid for noninteracting systems with topological properties, and I shall discuss current efforts to extend some of it to phases of strongly interacting matter.
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University of California, San Diego
Fri 3 Mar 2017, 3:00pm SPECIAL
Department Colloquium
ESB2012
PIMS-UBC Distinguished Colloquium--TBA
ESB2012
Fri 3 Mar 2017, 3:00pm-4:00pm

Abstract

 

Note for Attendees

Refreshments will be served in ESB 4133 from 2:45pm-3:00pm.
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University of Grenoble
Fri 10 Mar 2017, 3:00pm SPECIAL
Department Colloquium
ESB 2012
PIMS-UBC Distinguished Colloquium-TBA
ESB 2012
Fri 10 Mar 2017, 3:00pm-4:00pm

Abstract

PIMS-UBC Distinguished Colloquium TBA

Note for Attendees

Refreshments will be served in ESB 4133 from 2:45pm-3:00pm.
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UBC Math
Fri 17 Mar 2017, 3:00pm
Department Colloquium
Graduate Research Award - TBA
Fri 17 Mar 2017, 3:00pm-4:00pm

Abstract


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Caltech
Wed 22 Mar 2017, 3:00pm SPECIAL
Department Colloquium
ESB 2012
Public Lecture - TBA
ESB 2012
Wed 22 Mar 2017, 3:00pm-4:00pm

Abstract


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Caltech
Thu 23 Mar 2017, 3:30pm SPECIAL
Department Colloquium
ESB 2012
PIMS-UBC Distinguished Colloquium - TBA
ESB 2012
Thu 23 Mar 2017, 3:30pm-4:30pm

Abstract


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John Ma
UBC Math
Fri 24 Mar 2017, 3:00pm
Department Colloquium
Graduate Research Award - TBA
Fri 24 Mar 2017, 3:00pm-4:00pm

Abstract


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Alejandra Herrera
UBC Math
Fri 31 Mar 2017, 3:00pm
Department Colloquium
Graduate Research Award - TBA
Fri 31 Mar 2017, 3:00pm-4:00pm

Abstract


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Umberto Zannier
SNS, Pisa
Fri 2 Mar 2018, 3:00pm SPECIAL
Department Colloquium
ESB2012
PIMS-UBC Distinguished Colloquium--TBA
ESB2012
Fri 2 Mar 2018, 3:00pm-4:00pm

Abstract

 

Note for Attendees

Refreshments will be served in ESB 4133 from 2:45 p.m.-3:00 p.m.
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