Un of Tenn | Math Department

Seminars and Colloquiums
for 2010-2011

Week of April 4, 2011

Speaker:
Mr. Jon Gray, Monday
Professor Jan Rosinski, Monday
Mr. Nicholas Lineback, Tuesday
Mr. Jared Bunn, Tuesday
Professor Steve Wise, Wednesday
Mr. Zachary Smith, Wednesday
Mr. Jared Bunn, Thursday

If you are interested in giving or arranging a talk for one of our seminars or colloquiums,
please review our calendar.

If you have questions, or a date you would like to confirm, please contact Dr. Fernando Schwartz.

Monday, April 4

DOCTORAL DEFENSE
TIME: 3:00 p.m.
ROOM: Ayres 406
SPEAKER: Mr. Jon Gray
TITLE: "On the homology of autoorphism groups of free groups"

His committee consists of Professors: Conant (chair), Daverman, Thistlethwaite, and Berry (EECS).

PROBABILITY SEMINAR
TIME: 3:35 – 4:25 p.m.
ROOM: Ayres 114
SPEAKER: Professor Jan Rosinski
TITLE: "Identification of semimartingales within infinitely divisible processes" Part II

Tuesday, April 5

MATH BIOLOGY SEMINAR
TIME: 9:45 – 10:35 p.m.
ROOM: NIMBioS Classroom
SPEAKER: Nicholas Lineback
TITLE: "Stochastic Diffe rential Equations"

TOPOLOGY SEMINAR
TIME: 3:40 – 4:30 p.m.
ROOM: Ayres Hall 406
SPEAKER: Mr. Jared Bunn
TITLE: Bounded Geometry and Property A for Nonmetrizable Coarse Spaces - 2

Wednesday, April 6

APPLIED/COMPUTATIONAL MATH SEMINAR
TIME: 3:35 - 4:30 p.m.
ROOM: Ayres 111
SPEAKER: Professor Steve Wise
TITLE: "Multigrid Methods and Convergence", Part 1 of 3
ABSTRACT: Multigrid solvers are optimal order iterative solvers for a class of linear (and weakly nonlinear) equations resulting from the discretization of elliptic and elliptic-like PDEs. In the best case, the amount of work to obtain a "solution" is on the order of N, where N represents the total number of unknowns (i.e., the dimension of the solution vector). Compare this with the work required for Gaussian elimination. In this series I will describe the methods in some detail, giving an intuitive explanation of why the methods are so efficient and describing modifications for nonlinear problems and the adaptive setting. The convergence proofs will be for the simplest cases in the finite difference and finite element frameworks. The prerequisites are modest, advanced calculus and advanced linear algebra should suffice.

ANALYSIS SEMINAR
TIME: 3:35 - 4:25 p.m.
ROOM: Ayres 114
SPEAKER: Mr. Zachary J. Smith
TITLE: "Weakly-Factored Spaces and Their Duals"
ABSTRACT: In the 1970's Charles Fefferman showed that the dual space of the Hardy space H^1 was BMO. A proof of this depends on the factorization of functions in H^1 as the product of H^2 functions; also important is the characterization of BMO in terms of Carleson measures.

In this talk, we will use these ideas as a stepping stone toward understanding weakly-factored spaces related to the Dirichlet space. We will further explore connections to Hankel-type operators and Carleson measures for the Dirichlet space.

Thursday, April 7

DOCTORAL DEFENSE
TIME: 8:30
ROOM: Ayres 114
SPEAKER: Mr. Jared Bunn
TITLE: Bounded Geometry and Property A for Nonmetrizabel Coarse Spaces

His committee consist of Professors: Dydak (chair), Brodskiy, Richter, and Hector (Psychology).

Past notices: