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Calendar: Events for week of April 23, 2018

April 23

2:30 pm

2:30 pm

Number Theory Seminar

Math 383-N

Math 383-N

Brian Lawrence (Columbia University)

“Diophantine Problems and a p-adic Period Map”

“Diophantine Problems and a p-adic Period Map”

April 23

4:00 pm

4:00 pm

Probability Seminar

Sequoia Hall Room 200

Sequoia Hall Room 200

David Aldous (UC Berkeley)

“Limits for Processes over General Networks” See attached: April 23.pdf

“Limits for Processes over General Networks” See attached: April 23.pdf

April 24

12:30 pm

12:30 pm

Kiddie Colloquium

Math 383-N

Math 383-N

Felipe Hernandez

“A Set of a Finite Perimeter and a Variational Problem”

“A Set of a Finite Perimeter and a Variational Problem”

April 24

2:30 pm

2:30 pm

Erick Knight (University of Toronto)

“Governing Fields for Cyclic Cubic Extensions”

“Governing Fields for Cyclic Cubic Extensions”

April 26

4:30 pm

4:30 pm

Department Colloquium

Math 380-W

Math 380-W

Bryna Kra (Northwestern)

“Dynamics of Systems with Low Complexity” One way to classify dynamical systems is by their entropy, which roughly speaking gives a measure of the disorder in the system. Deterministic systems have zero entropy, but in spite of this structure, many basic questions about entropy zero systems remain open, even with stronger restrictions placed on the complexity in the system.

“Dynamics of Systems with Low Complexity” One way to classify dynamical systems is by their entropy, which roughly speaking gives a measure of the disorder in the system. Deterministic systems have zero entropy, but in spite of this structure, many basic questions about entropy zero systems remain open, even with stronger restrictions placed on the complexity in the system.

April 27

3:00 pm

3:00 pm

Informal Geometry & Topology Seminar

Math 384-H

Math 384-H

Carolyn Abbott (UC Berkeley)

“Acylindrical Actions on Hyperbolic Spaces” The class of acylindrically hyperbolic groups consists of groups that admit a particular nice type of non-elementary action on a hyperbolic space, called an acylindrical action. This class contains many interesting groups such as non-exceptional mapping class groups, Out(Fn) for n > 1, and right-angled Artin and Coxeter groups, among many others.

“Acylindrical Actions on Hyperbolic Spaces” The class of acylindrically hyperbolic groups consists of groups that admit a particular nice type of non-elementary action on a hyperbolic space, called an acylindrical action. This class contains many interesting groups such as non-exceptional mapping class groups, Out(Fn) for n > 1, and right-angled Artin and Coxeter groups, among many others.

April 27

4:00 pm

4:00 pm

Algebraic Geometry Seminar

Math 383-N

Math 383-N

Sean Howe (Stanford)

“Motivic Random Variables and Random Matrices” As first shown by Katz-Sarnak, the zero spacing of L-functions of smooth plane curves over finite fields approximate the infinite random matrix statistics observed experimentally for the zero spacing of the Riemann-Zeta function (arbitrarily well by first taking the size of the finite field to infinity, and then the degree of the curve to infinity).

“Motivic Random Variables and Random Matrices” As first shown by Katz-Sarnak, the zero spacing of L-functions of smooth plane curves over finite fields approximate the infinite random matrix statistics observed experimentally for the zero spacing of the Riemann-Zeta function (arbitrarily well by first taking the size of the finite field to infinity, and then the degree of the curve to infinity).

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