# 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
Venue: Seminar Room, SMS
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
Venue: Seminar Room, SMS
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
Venue: SMS Seminar Room
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
Venue: Seminar Hall, SMS
Speaker: Sujeet Kumar Singh, NISER
Title: Modular forms and Sturm bounds

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