Mon, September 23, 2019
Public Access Category: All |
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- Time:
- 3:30pm-5:00pm
- Location:
- Room 215, Department of Mathematics
- Description:
- Commutative Algebra seminar.
Speaker: R V Gurjar.
Affiliation: IIT Bombay.
Date and Time: Monday 23 September, 3:30 pm - 5:00 pm.
Venue: Room 215, Department of Mathematics.
Title: Paul Robert's Theorem.
Abstract: Let a finite abelian group G act on a normal local domain R
with residue field of R of char. 0. Assume that R^G is a UFD. Then R is a
free R^G- module. In particular, if R^G is regular then R is Cohen
Macaulay.
We will start preparation for P. Samuel's descent theory.
- Time:
- 4:00pm-5:00pm
- Location:
- Ramanujan Hall, Department of Mathematics
- Description:
- Mathematics Colloquium Talk I.
Speaker: Agnid Banerjee.
Affiliation: TIFR-CAM, Bangalore.
Date and Time: Monday 23 September, 4:00 pm - 5:00 pm.
Venue: Ramanujan Hall, Department of Mathematics.
Title: The structure of the regular and the singular set of the free
boundary in the obstacle problem for fractional heat equation.
Abstract: In this talk, I will discuss the structure of the free boundary
in the obstacle problem for fractional powers of the heat operator. Our
results are derived from the study of a lower dimensional obstacle problem
for a class of local, but degenerate, parabolic equations. The analysis
will be based on new Almgren, Weiss and Monneau type monotonicity formulas
and the associated blow-up analysis. This is a joint work with D.
Danielli, N. Garofalo and A. Petrosyan.