# Past Events

Date/Time: Wednesday, July 1, 2020 - 16:00 to 17:00

Venue: Conference Room, School of Mathematical Sciences

Speaker: Dr. Anup Kumar Singh, IISER Berhampur

Title: Representation formulas for certain quadratic forms and a problem of constructing lifting maps between spaces of modular forms.

In this talk, we shall discuss the theta series associated with positive definite integral quadratic forms and some of its applications in getting formulas for the number of representations of positive integers by quadratic forms, using the theory of modular forms. The second part of this talk...

Date/Time: Monday, June 29, 2020 - 16:00 to 17:00

Venue: Conference Room, School of Mathematical Sciences

Speaker: Dr. Ranjan Kumar Das, IIT Guwahati

Title: Solving rational eigenvalue problems through strong linearizations.

Rational matrices G(x) arise in many applications such as in vibration analysis of machines, buildings, and vehicles, in control theory and linear systems theory and as approximate solutions of other nonlinear eigenvalue problems. The spectral data (poles, zeros, eigenvalues, eigenvectors,...

Date/Time: Friday, June 26, 2020 - 16:00 to 17:00

Venue: Conference Room, School of Mathematical Sciences

Speaker: Dr. Manish Singh, TIFR Centre for Applicable Mathematics

Title: Structure theorems for balance laws

In this talk, I will present Lax-Oleinik type explicit formulafor the solution of some balance laws and discuss its Structure Theory.

Date/Time: Monday, June 22, 2020 - 10:30 to 11:30

Venue: Mathematics Conference Room

Speaker: Amit Kumar, NISER

Title: Comarison of order projections in absolute matrix order unit spaces

Google Meet link: meet.google.com/bvx-swhw-epg

Date/Time: Monday, June 15, 2020 (All day) to Saturday, June 27, 2020 (All day)

Date/Time: Friday, May 8, 2020 - 15:00 to 16:00

Venue: Conference Room, School of Mathematical Sciences

Speaker: Rekha Biswal, Max Planck Institute for Mathematics, Bonn

Title: Macdonald polynomials and level two Demazure modules for affine sl_{n+1}

An important result due to Sanderson and Ion says that characters of level one Demazure modules are Macdonald polynomials specialized at t=0. In this talk,

I will introduce a new class of symmetric polynomials expressed as linear combination of Macdonald polynomials....

Date/Time: Wednesday, March 25, 2020 - 16:10 to 17:10

Speaker: Anup Kumar Singh, IISER Berhampur

Title: Representation formulas for certain quadratic forms and a problem of constructing lifting maps between spaces of modular forms.

In this talk, we shall discuss the theta series associated with positive definite integral quadratic forms and some of its applications in getting formulas for the number of representations of positive integers by quadratic forms, using the theory of modular forms. The second part of this talk...

Date/Time: Friday, March 20, 2020 - 14:30 to 15:15

Speaker: A S Abdul Shabeer, SMS, NISER

Title: Hurwitz's Formula for Compact Riemann Surfaces.

Given a holomorphic map between compact Riemann surfaces, Hurwitz's formula relates the genera of the domain and range with the degree and ramification of the map. Hence, given two compact Riemann surfaces we get a restriction on the possible types of holomorphic maps between them. In particular...

Date/Time: Monday, March 9, 2020 - 16:10 to 16:45

Speaker: Suman Mukherjee, NISER

Title: Hardy Littlewood Maximal Function and it's applications

Date/Time: Monday, March 9, 2020 - 15:30 to 16:05

Speaker: Archana S, NISER

Title: Heke Bochner Formula for Euclidean Fourier transform

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**School of Mathematical Sciences**

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