Past Events

Thursday, November 23, 2017 - 09:30 to 10:30
Venue: SMS seminar room
Speaker: Ramprasad Kale, 4th Year student, SMS, NISER
Title: Some Topics in Sequential Estimation

Confidence intervals constructed from a fixed-sample size procedure may sometimes be too wide to be of any practical use. Hence, to avoid such a problem, it is desirable to construct confidence intervals with fixed-width. G. B. Dantzig (1940) showed that there did not exist any fixed sample size...

Wednesday, November 22, 2017 - 15:30
Venue: Seminar Hall
Speaker: Anantadulal Paul, NISER
Title: Counting complex curves with singularity in CP^2

The study of of degree d curves in $\mathbb{CP}^2$ is one of the interesting topic which arises in the context of Enumerative Geometry. The specific problem, which I will talk about, can be stated as follows:

Let $\mathbb{CP}^2$ be a compact complex surface and $L \rightarrow \mathbb{CP}^...

Wednesday, November 22, 2017 - 14:00 to 15:00
Venue: Conference Room, School of Mathematical Sciences
Speaker: Sabyasachi Mukhopadhyay, University of Hohenheim
Title: Modelling spatio-temporal variation in rainfall using a hierarchical Bayesian regression model
Wednesday, November 22, 2017 - 11:00 to 12:00
Venue: conference Room, School of Mathematical Sciences
Speaker: Ananta Kumar Majee, University of Tübingen
Title: Rate of convergence of a semi-discrete finite difference scheme for stochastic balance laws driven by Levy noise
Tuesday, November 21, 2017 - 11:30
Venue: Seminar Hall, SMS
Speaker: Abhrojyoti Sen, SMS, NISER
Title: Vanishing Pressure Limit For a Non-strictly Hyperbolic System

In this talk we will be discussing about vanishing pressure limit for the equation

u_t + (u^2/2)_x = 0

ρ_t + (ρu)_x = 0,

with initial data

u(x, 0) = u_0(x),

ρ(x, 0) = ρ_0(x),

where u is the velocity component and ρ is the density component. This equation...

Monday, November 20, 2017 - 15:30
Venue: Seminar hall
Speaker: Atibur Rahaman , NISER
Title: Partial dual construction for C*-Quantum groups

Given a Hopf algebra H in a braided category \mathcal{C} and a projection H\longrightarrow A to a Hopf subalgebra, one can construct a Hopf algebra r_{A}(H), called the partial dualization of H , with a projection to Hopf algebra dual to A​. A non-degenerate Hopf pairing \omega :A\otimes B \...

Monday, November 20, 2017 - 11:30 to 12:30
Venue: SMS, Seminar Room
Speaker: Prof. Raj Srinivasan, University of Saskatchewan, Canada
Title: Non Homogenous Poisson Process and Its Applications

Traditionally, Poisson process with constant rate have been extensively used to model arrival and potential service processes arising in queueing and queueing networks models under the Markov regime.
Generalization to non Markovian models, usually has taken...

Thursday, November 16, 2017 - 16:00 to 17:15
Speaker: Dr. Kunal Krishna Mukherjee , IIT Madras
Title: On dynamical system preserving weights

The canonical unitary representation of a locally compact separable group arising from an ergodic action of the group on a von Neumann algebra with separable predual preserving a faithful normal semifinite (infinite) weight is weak mixing. On the contrary, there exists a non...

Monday, November 13, 2017 - 11:30 to 12:30
Venue: Seminar Room, School of Mathematical Sciences
Speaker: Suprio Bhar, TIFR Bangalore
Title: Stochastic PDEs in the space of Tempered distributions

In this talk, we will discuss some recent results on the existence and uniqueness of strong solutions of certain classes of stochastic PDEs in the space of Tempered distributions. We show that these solutions can be constructed from the solutions of "related" finite dimensional stochastic...

Friday, November 10, 2017 - 15:45 to 16:45
Venue: Math Conference Room
Speaker: Sudeep Stephen, The University of Newcastle, Australia
Title: Zero forcing in graphs
Abstract: For a two-colouring of the vertex set of a simple graph $G=(V,E)$, consider the following colour-change rule: a red vertex is converted to blue if it is the only red neighbour of some blue vertex. A vertex set $S\subseteq V$ is called \emph{zero-forcing} if,...


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