Time & Date: 5pm, 23rd October
Venue: Ramanujan Hall
Speaker: Kriti Goel
Title: An introduction to Local Cohomology
Abstract: In this talk, we will look at three different ways to calculate
the local cohomology modules and some of the properties of these modules.
No pre-requisites are required for the talk, so all are welcome!
Time:
4:00pm
Location:
Ramanujan Hall, Department of Mathematics
Description:
Mathematics Colloquium
Time & Date: 4pm, 24th October
Venue: Ramanujan Hall
Speaker: Trygve Johnsen
Title: An introduction to codes and matroids
Abstract: In this talk we will tell what the purpose of an error-correcting code is, and we will in particular study linear codes. We will relate some of the most important properties of such codes with those of another class of mathematical objects, namely matroids. These are objects that arise in a natural way, either from undirected (multi)graphs, or, as the name indicates, from matrices. Furthermore, if time permits, we will sketch briefly how algebraic geometry over finite fields enter the picture when defining and producing codes with good properties.
Time:
2:30pm-3:30pm
Location:
Ramanujan Hall, Department of Mathematics
Description:
Talk over Skype
25th October
Dr. Omprokash Das
2:30-3:30pm
Venue: Ramanujan Hall
Title of the Talk: The Minimal Model Program (MMP) and its Applications.
Abstract: The Minimal Model Program (MMP) or the Mori Program is one of the fundamental tools of birational classifications and the construction of Moduli Spaces of higher dimensional varieties. In this talk I will explain the main ideas of MMP and its various applications. Finally I will talk about the recent progress of MMP in positive characteristic.
Time:
4:00pm-5:00pm
Location:
Room No. 215, Department of Mathematics
Description:
PDE seminar on Control and homogenization:
Title: Control of wave equation.
Speaker: Debanjana Mitra,
Time: Thursday, 25-10-18, 4p.m.-5p.m.
Venue: Room 215, Department of Mathematics, IIT Bombay.
Abstract: In this talk, we will continue the discussion on the control of
wave equation from where we stopped at the previous lecture. The control
of wave equation using Hilbert uniqueness method will be discussed.
Time:
4:00pm
Location:
Ramanujan Hall, Department of Mathematics
Description:
Dr. Samya Ray from IIT Kanpur
25 Oct at 4:00 pm.
Venue: Ramanujan Hall
Please find attached the title/abstract of the talk.
Time:
4:00pm
Location:
Room No. 215, Department of Mathematics
Description:
Speaker: Soumyadip Thandar
Time and Venue: 4pm, room 215
Title: General position theorem
Abstract: Let X be a smooth projective variety contained in CP^n. We say X is nondegenerate if it is not contained in any proper hyperplane. Given a variety of dimension m in CP^n, we intersect it with m many hyperplanes and get bunch of points. This number is independent of the choice of the hyperplanes and is defined to be the degree of the variety. A set of k points in CP^n is said to be in general position, if every subset of n+1 points spans all of CP^n. We will prove the general position theorem which states that given an irreducible nondegenerate curve C in CP^n ( where n is \geq 3) of degree d, a general hyperplane meets C in d points which are in general position. Using this we will show any nondegenerate variety X in CP^n , degree \geq 1+codim(X).