Past Events

Monday, November 10, 2014 - 11:35 to 12:35
Venue: LH-101
Speaker: Professor B. Ramakrishnan, HRI, Allahabad
Title: Representations of integers as sums of squares

Finding formulas for the number of representations of integers as sums of integer squares has a long history. In this talk we give a brief history of the problem and indicate the use of modular forms in obtaining certain formulas. We also discuss about some related questions. 

Monday, November 3, 2014 - 11:35 to 12:35
Venue: LH-101
Speaker: Moni Kumari, NISER, Bhubaneswar
Title: Euler's famous prime generating polynomial
Abstract: Let $ f_q(x)= x^2+x+q $ where $q$ is a prime integer. If $q=41$ then the above polynomial assume prime values for $n=0,1, 2, \ldots, q-2=39$. What are the prime $q$ for which the above polynomial assume prime values for $n=0, 1, 2, \ldots, q-2$? One can verify that...
Monday, October 27, 2014 - 11:35 to 12:35
Venue: LH-101
Speaker: Abhash Kumar Jha, NISER, Bhubaneswar
Title: Adjoint of some linear maps on the space of Jacobi cusp forms
Let $S_k$ denote the space of cusp forms of weight $k$ for the full modular group on the upper half plane. For a fixed $g\in S_l$ define a linear map $T : S_k \longrightarrow S_{k+l}$ by $T(f) = fg$. We calculate the adjoint of the above map. We also calculate the adjoint of...
Monday, October 20, 2014 - 11:35 to 12:35
Venue: LH-101
Speaker: Rajula Srivastava, NISER, Bhubaneswar
Title: Tree t spanners in 2 connected outerplanar graph

Abstract: The problem of finding sparse underlying subgraphs, which also maintain the distance information between any 2 pair of vertices, is an important one in graph theory, with several applications. One approach would be to find tree $t$-spanners, i.e.,...

Wednesday, October 15, 2014 - 11:35 to 12:35
Venue: LH301
Speaker: Dr. Suchismita Das,
Title: How to measure uncertainty in the weighted lifetime distribution

Every probability distribution has some uncertainty associated with it. The concept of Shannon’s entropy provide a quantitative measure of this uncertainty. But for some probability distributions the Shannon’s entropy measure may be negative and then it is no longer an uncertainty measure. To...

Monday, October 13, 2014 - 11:35 to 12:35
Venue: LH-101
Speaker: Dr. Jaban Meher, IISC, Bangalore
Title: Product of eigen forms
Friday, October 10, 2014 - 15:30 to 16:30
Venue: PL8
Speaker: Dr. Rahul Garg, Israel Institute of Technology, Haifa, Israel
Title: The lattice point counting problem on the Heisenberg groups

Abstract : I shall begin with the description of the lattice points counting...

Thursday, September 25, 2014 (All day) to Saturday, September 27, 2014 (All day)
Venue: IIITDM, Jabalpur, Madya Pradesh

National Workshop on Cryptology-2014(under the aegis of Cryptology Research Society of India) will be held at IIITDM...

Thursday, September 11, 2014 - 11:35 to 12:35
Venue: LH301
Speaker: Dr. Tanusree Khandai,
Title: Integrable representations of Multiloop Lie algebras of type $A_1$
Abstract: Given a finite-dimensional simple Lie algebra L, one can define a Lie algebra structure on $M = L \otimes \mathbb{C}[t_1^{\pm1},...t_n^{\pm1}]$, $ n\in \mathbb{Z}_+$. Such a Lie algebra is called a multiloop Lie algebra. The aim of the talk is to present a class of...
Wednesday, September 10, 2014 - 11:35 to 12:35
Venue: LH301
Speaker: Dr. Parashar Mohanti, Department of Mathematics & Statistics, Indian Institute of Technology, Kanpur
Title: Compleletely bounded multipliers on $L^p$
Abstract: In the last decades study of classical harmonic analysis problems in the setting of operator space structures is a very active area of research. In this talk we will discuss the problems of Fourier multipliers on $L^p$ spaces, which is a central theme in harmonic...


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