Mon, September 9, 2019
Public Access Category: All |
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- Time:
- 11:30am-1:00pm
- Location:
- Room No. 215 Department of Mathematics
- Description:
- Commutative Algebra seminar I.
Speaker: R V Gurjar.
Affiliation: IIT Bombay.
Date and Time: Monday 09 September, 11:30 am - 1:00 pm.
Venue: Room 215, Department of Mathematics.
Title: Invariant rings of pseudo-reflection groups.
Abstract: We will indicate proofs (based on L. Avramov's paper) of some of
the descent properties of rings of invariants of a finite
pseudo-reflection group acting on a local ring.
- Time:
- 11:30am
- Location:
- Ramanujan Hall, Department of Mathematics
- Description:
- Combinatorics seminar.
Speaker: Venkata Raghu Tej Pantangi.
Affiliation: University of Florida and SUSTech, Shenzen, China.
Date and Time: Monday 09 September, 11:30 am - 12:30 pm.
Venue: Ramanujan Hall, Department of Mathematics.
Title: Critical groups of graphs.
Abstract: The critical group of a graph is an interesting isomorphic
invariant. It is a finite abelian group whose order is equal to the number
of spanning forests in the graph. The Smith normal form of the graph's
Laplacian determines the structure of its critical group. In this
presentation, we will consider a family of strongly regular graphs. We
will apply representation theory of groups of automorphisms to determine
the critical groups of graphs in this family