Monday, October 16, 2017
Colloquium | August 25 – December 1, 2017 every day | 112 Wurster Hall
FRIDAYS - AUG 25 through DEC 1. CHECK THE SCHEDULE FOR SPEAKERS. Bay Area Leaders discuss topics in sustainability.
Seminar | October 16 | 12-1:30 p.m. | 489 Minor Hall
Dan Coates, PhD, University of Houston Optometry
Abstract: Crowding, the deleterious influence of clutter on identification of a target, is typically studied in the visual periphery, where it is a fundamental limit to visual perception. Most experiments entail keen spatial focus on a flanked target, which must be categorized using forced-choice response methods. I present several recent studies that extend conventional practice. First, I... More >
Seminar | October 16 | 12-1 p.m. | 939 Evans Hall
Pavel Galashin, MIT
T-systems are certain discrete dynamical systems associated with quivers. Keller showed in 2013 that the T-system is periodic when the quiver is a product of two finite Dynkin diagrams. We prove that the T-system is periodic if and only if the quiver is a finite ⊠ finite quiver. Such quivers correspond to pairs of commuting Cartan matrices which have been classified by Stembridge in the context... More >
Seminar | October 16 | 1-2 p.m. | 891 Evans Hall
Valentino Tosatti, Northwestern
Consider a projective hyperkähler manifolds with a surjective holomorphic map with connected fibers onto a lower-dimensional manifold. In the case the base must be half-dimensional projective space, and the generic fibers are holomorphic Lagrangian tori. I will explain how hyperkähler metrics on the total space with volume of the torus fibers shrinking to zero, collapse smoothly away from the... More >
Insight into avian novelty and identity from science at the interfaces of paleontology, comparative genomics, engineering, and developmental biology
Seminar | October 16 | 1-2 p.m. | 2040 Valley Life Sciences Building | Note change in time
Julia Clarke, The University of Texas at Austin
Seminar | October 16 | 2-3 p.m. | 402 LeConte Hall
David Nadler, UC Berkeley
I’ll describe a variant of the geometric Langlands program that has more of the topological flavor of some physical accounts. I’ll explain how it fits into broader patterns in mirror symmetry, and also the form it takes in some examples. A key quest is for a “categorical Verlinde formula” to reduce the case of high genus curves to nodal configurations. (Joint work in parts with D. Ben-Zvi... More >
Seminar | October 16 | 2-3:30 p.m. | 597 Evans Hall
Joint with International Seminar.
Workshop | October 16 | 2-3 p.m. | 9 Durant Hall
Leah Carroll, Haas Scholars Program Manager/Advisor, Office of Undergraduate Research and Scholarships
Getting Started in Undergraduate Research
If you are thinking about getting involved in undergraduate research, this workshop is a great place to start! You will get a broad overview of the research opportunities available to undergraduates on campus, and suggestions on how to find them.
We will also let you know about upcoming deadlines and eligibility requirements for some of... More >
ECON 281, International Trade and Finance: "Trade, Merchants and Lost Cities of the Bronze Age, with Gojko Barjamovic"
Seminar | October 16 | 2-4 p.m. | 597 Evans Hall
Kerem Cosar, University of Virginia
Colloquium | October 16 | 2-4 p.m. | 221 Kroeber Hall
Doug Bailey, San Francisco State University, Department of Anthropology
What happens when people attempt to
discard and destroy a museum archive
that contains many thousands of visual
and material objects? In this workshop,
we discuss the politics, potential,
and violence of archive objects
specifically a cache of over 1200, 35-
mm transparencies from the mid-late
20th century. What lives do they live?
Are they passive and neutral objects
resting peacefully... More >
Workshop | October 16 | 3-4 p.m. | 405 Moffitt Undergraduate Library
Jen Bellenger, bConnected Collaboration Services; Rob Silva, bConnected Collaboration Services
In this workshop we'll explore how easy it is to organize, collaborate, and share all of your online content in the New Google Sites.
Cal ID required to enter Moffitt Library.
Seminar | October 16 | 3-4 p.m. | 540 Cory Hall
Yin-Tat Lee, UW Seattle
Kannan-Lovasz-Simonovitz (KLS) conjecture asserts that the isoperimetric constant of any isotropic convex set is uniformly bounded below.
It turns out that this conjecture implies several well-known conjectures from multiple fields: (Convex Geometry) Each unit-volume convex set contains a constant area cross section. (Information Theory) Each isotropic logconcave distribution has O(d) KL... More >
Seminar | October 16 | 3:10-5 p.m. | 891 Evans Hall
Wei Ho, University of Michigan
For any fixed odd integer $n \geq 3$, we study the 2-torsion of the ideal class groups of certain families of degree $n$ number fields. We show that (up to a tail estimate) the average size of the 2-torsion in these families matches the predictions given by the Cohen-Lenstra-Martinet-Malle heuristics, which predict the distribution of class groups of number fields. As a consequence, we find that... More >
Seminar | October 16 | 3:30-5 p.m. | 3108 Etcheverry Hall
Philip Protter, Columbia University
Abstract: In a complete market, there is a unique risk neutral measure, unique prices, and all contingent claims can be (at least theoretically) perfectly hedged. In an incomplete market, in contrast, there is an infinite number of risk neutral measures, a continuum of fair prices, and contingent claims can in general not be perfectly hedged, even theoretically. Unfortunately, there seems to be... More >
Seminar | October 16 | 4-5:30 p.m. | 648 Evans Hall
Ferenc Szűcs, Berkeley
Seminar | October 16 | 4-5 p.m. | 220 Jacobs Hall
Public artist, designer, and social entrepreneur Jess Hobbs will speak at Jacobs Hall.
Colloquium | October 16 | 4-5:30 p.m. | 2515 Tolman Hall
Zachary Bleemer, UCOP, Center for Studies in Higher Education, University of California, Berkeley
How has the student experience provided by the University of California changed over the past 100 years, and what are the ramifications of those changes for the broader state of California? I will present preliminary results from the University of California ClioMetric History Project (UCCHP), a longitudinal examination of the contributions of California universities to the state's growth,... More >
Seminar | October 16 | 4:10-5 p.m. | 740 Evans Hall
Maciej Zworski, UC Berkeley
I will present a new explanation of the connection between the fractal uncertainty principle of Bourgain–Dyatlov, a statement in harmonic analysis, and the existence of zero free strips for Selberg zeta functions, which is a statement in geometric scattering/dynamical systems. The connection is proved using (relatively) elementary methods via the Ruelle transfer operator which is a well known... More >
Seminar | October 16 | 4:10-5 p.m. | 732 Evans Hall | Canceled
Michael Freedman, Microsoft Research
There seem to be 5 broad theorems whose conclusion is an embedded two dimensional disk (perhaps with additional structures). The five are about mapping a disk into manifolds of dimension: 2,3,4,higher, and symplectic manifolds, respectively. Each is worth knowing. The theorem about mapping a disk into a three manifold is called Dehn’s lemma. It is 60 years old, but I will explain a new wrinkle... More >
Seminar | October 16 | 5:30-6:30 p.m. | 106 Stanley Hall
Professor David Kaplan, Johns Hopkins University