# Past Events

Date/Time: Friday, March 3, 2017 - 11:00 to 12:00

Venue: Seminar Room, School of Mathematical Sciences

Speaker: Dr. Prateep Chakraborty, IISER Kolkata

Title: On Stiefel-Whitney Classes of vector bundles over real Stiefel Manifolds.

Date/Time: Thursday, March 2, 2017 - 15:00 to 16:00

Venue: Seminar Room, School of Mathematical Sciences

Speaker: Dr. Md. Ali Zinna, Ramakrishna Mission Vivekananda University

Title: Some results on the orbit space of unimodular row

Date/Time: Tuesday, February 28, 2017 - 15:30

Speaker: Professor Y. Martin, Universidad de Chile, Santiago

Title: On an integral kernel for twisted Koecher-Maass series associated to Siegel cusp forms of degree two

We give an explicit formula for the integral kernel of the twistedKoecher-Maass series associated to a degree two Siegel cusp form F, where the twist is realized by any Maass waveform whose eigenvalue is in the continuum spectrum. From such a kernel we deduce the analytic properties of those...

Date/Time: Monday, February 27, 2017 - 15:30 to 16:30

Speaker: Professor Y. Martin, Universidad de Chile, Santiago

Title: On a set of Fourier coefficients which determine all Siegel cusp forms of degree two

Abstract: In this talk we first recall some basic facts about Siegel cusp forms of degree two. Then we present a particular set of integral, positive-definite, diagonal matrices A, and show that all such Siegel cusp forms are completely characterized by the Fourier coefficients indexed by the...

Date/Time: Monday, February 27, 2017 - 11:00 to 12:00

Date/Time: Wednesday, February 22, 2017 - 14:30 to 15:30

Venue: Seminar Room, Mathematics Department

Speaker: Dr. R. Sivaguru, TIFR, Mumbai

Title: Geometry and Function Theory in Several Complex Variables

There is a deep interplay between geometry and holomorphic function theory on domains in $\mathbb{C}^n$, $n>1$, which is quite unlike the situation in $\mathbb{C}$. This leads to striking new phenomena in higher dimensions that are absent in the one dimensional setting. We will begin by...

Date/Time: Tuesday, February 21, 2017 - 15:00 to 16:00

Venue: Seminar Room, School of Mathematical Sciences

Speaker: Dr. Samik Basu, Ramakrishna Mission Vivekananda University

Title: Homotopy groups of highly connected manifolds

We shall discuss a new method of computing (integral) homotopy groups of certain manifolds in terms of the homotopy groups of spheres. The techniques used in this computation also yield formulae for homotopy groups of connected sums of sphere products and CW complexes of a similar type. In all...

Date/Time: Monday, February 20, 2017 - 11:30 to 12:30

Venue: Seminar Room, School of Mathematical Sciences

Speaker: Dr. Neeraja Sahasrabudhe, IIT, Bombay

Title: Interacting Urn Processes

Randomly evolving systems with components that interact with each other have been of great interest in research. In particular, in this talk, we will discuss interacting urn processes with reinforcement. We consider N interacting two-colour Friedman urns and discuss the synchronization limit and...

Date/Time: Friday, February 17, 2017 - 09:30 to 10:30

Venue: Conference Room, School of Mathematical Sciences

Speaker: Dr. Pradeep Kumar Rai, Bar-Ilan University, Israel

Title: Order of the Schur multiplier of finite p-groups

We shall derive some bounds on the order of the Schur multiplier of finite p-groups. We shall also classify finite p-groups having Schur multiplier of maximum order. Finally we shall discuss the Schur multiplier and covering groups of special p-groups having derived subgroup of maximum order....

Date/Time: Thursday, February 16, 2017 - 15:30 to 16:30

Speaker: Sujeet Kumar Singh, NISER

Title: Modular forms and Sturm bounds

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