# Past Events

Date/Time: Tuesday, January 27, 2015 - 11:35 to 12:35
Venue: LH-301
Speaker: Moni Kumari, NISER, Bhubaneswar
Title: L-functions

Abstract: L-functions are generating functions formed out of local data associated with either an arithmetic object or with an automorphic form. These functions are special examples of so-called Dirichlet series. Some L-functions have interesting properties like analytic or...

Date/Time: Friday, January 16, 2015 - 15:30 to 16:30
Venue: LH-301
Speaker: Dr. Atish Sahu, Nagaland University SASRD, Medziphema
Title: Construction of Neighbor Balanced designs

Spatial heterogeneity in terms of trends or periodicity in blocks may affect the outcome of experiments, especially in agricultural experiments. The conventional randomized allocation of treatments to plots in a block may result in lesser precision. It has been commonly found that the...

Date/Time: Thursday, January 15, 2015 - 11:35 to 12:35
Venue: LH-101
Speaker: Gaurish Korpal, NISER, Bhubaneswar
Title: Celebrating 110th birthday of D. R. Kaprekar

Abstract: Dattarya Ramchandra Kaprekar was an Indian recreational mathematician who described several classes of natural numbers. The motive of this talk is to give a flavor of Elementary Number Theory and Iterations, by discussing the contributions of D. R. Kaprekar. I will...

Date/Time: Monday, January 12, 2015 - 11:35 to 12:35
Venue: LH 101
Speaker: Dr. Pritam Ghosh,
Title: Dynamics of outer automorphisms of free groups
Abstract: We will first look at some geometric properties of a free group and follow it up by introducing the Train track theory which is a vital tool for studying dynamics of outer automorphisms of free groups. Given a finite rank free group $F$ of rank $\geq 3$ and two...
Date/Time: Monday, January 5, 2015 - 11:35 to 12:35
Venue: LH 101
Speaker: Dr. Sarath Sasi,
Title: Weighted Eigenvalue Problem in the Exterior Domain

We consider a weighted quasilinear eigenvalue problem in the exterior domain. We establish the existence of a positive principal eigenvalue and discuss the regularity and the asymptotic behaviour at infinity of the first eigenfunctions. A local and the global antimaximum principle is also...

Date/Time: Friday, January 2, 2015 - 15:30 to 16:30
Venue: TBA
Speaker: Dr. Pinaki Sarkar,
Title: Key Pre–Distribution Schemes In Wireless Sensor Network Security

Abstract: WSNs finds wide applications in both military and civilian arenas of life. They consists of numerous low cost wireless devices, called sensors or nodes that deals with a lot of sensitive data. Due to resource constraints in these sensors, symmetric key systems are preferred over a...

Date/Time: Monday, December 1, 2014 - 16:00 to 17:00
Venue: LH-101
Speaker: Dr. Kailash C. Misra, North Carolina State University, Raleigh, North Carolina, USA
Title: Lie algebras and Combinatorial Identities

Abstract:

The Lie groups were discovered by Sophus Lie around 1880 while searching for a framework to analyze the continuous symmetries of differential equations in much the same way as permutation groups are used in...

Date/Time: Friday, November 21, 2014 - 15:30 to 16:30
Venue: LH-104
Speaker: Dr. Safdar Quddus,
Title: NONCOMMUTATIVE TOROIDAL $SL(2, \mathbb{Z})$ ORBIFOLD
Abstract: The noncommutative torus was introduced in the early 80’s to study a generalization of the classical torus. Connes calculated its cyclic and Hochschild cohomology, his results resembles with the various topological cohomology groups of the classical torus. It is...
Date/Time: Thursday, November 20, 2014 - 11:35 to 12:35
Venue: LH 101
Speaker: Professor Debasis Kundu, Department of Mathematics & Statistics, Indian Institute of Technology, Kanpur
Title: Analyzing Periodic Data: Statistical Perspectives

Abstract: We observe periodic phenomena everyday in our lives. The daily temperature of Delhi or the number of tourists visiting the famous Taj Mahal or the ECG data of a normal human being, clearly follow periodic nature. Sometimes, the observations may not be exactly periodic due to different...

Date/Time: Monday, November 17, 2014 - 11:35 to 12:35
Venue: LH 101
Speaker: Professor Debasis Kundu, Department of Mathematics & Statistics, Indian Institute of Technology, Kanpur
Title: A Journey Beyond Normality

Abstract: Normal distribution has been used quite extensively in different areas of science and technology both in theory and practice. Although, it has several desirable properties, it has its own limitations also. Recently, various non-normal distributions (both univariate as well as...