# Past Events

Date/Time: Monday, December 6, 2021 - 18:15 to 19:00
Speaker: Anagha Nair, NISER Bhubaneswar
Title: Completely positive maps

A linear map $\phi$ between two C* algebras $A$ and $B$ is called positive if $\phi(a)\geq 0$ for every $a\in A$, $a\geq 0$. Here, $a\geq 0$ means a is self-adjoint and the spectrum of $a$ is contained in positive real numbers. $\phi$ is said to be $n$-positive if \$\phi \...

Date/Time: Monday, December 6, 2021 - 16:15 to 17:00
Title: Quantum zero - error communication
We will talk about the basic concept of quantum zero-error, zero-error capacity of a quantum channel and some of its properties. Then we will look at superactivation phenomenon which is exclusive to quantum setup and the quantum...
Date/Time: Monday, December 6, 2021 - 14:30 to 15:15
Speaker: K Prahlad Narasimhan, NISER Bhubaneswar
Title: Optimality of local search algorithms

In this talk, we discuss our attempts to solve an important open problem regarding Terrain Guarding: is the state-of-the-art polynomial-time approximation scheme for the problem [...

Date/Time: Friday, November 26, 2021 - 18:00 to 19:00
Venue: Online
Speaker: Ms. Saswati Mukherjee, SMS, NISER
Title: Symmetric property of solution for a 2nd order partial differential equation

Abstract: We show that the solution ...

Date/Time: Friday, November 26, 2021 - 16:00
Venue: Vertual
Title: State spaces of partially ordered abelian groups with an order unit

Abstract: We will talk about states and state spaces of partially ordered abelian groups with an order unit. A state on a partially ordered abelian group with order unit (G,u) is a positive homomorphism (a group homomorphism that takes positive elements to positive elements)...

Date/Time: Friday, November 26, 2021 - 14:30 to 15:30
Venue: Online
Speaker: Ms. Saswati Mukherjee, SMS, NISER
Title: Stokes Theorem.

AbstractFirst I shall introduce differential of forms and integration over chains and finally I give proof of Stokes theorem.

Date/Time: Friday, November 26, 2021 - 11:40 to 12:40
Venue: Online
Speaker: Ms. Anuvertika Pandey, SMS, NISER
Title: Toeplitz Operators on the Hardy Space.

Abstract: We will characterize Toeplitz operators on the Hardy space using Berezin transform and then we will derive the necessary and sufficient condition...

Date/Time: Friday, November 26, 2021 - 10:30 to 11:30
Venue: Online
Speaker: Mr. Aanjaneya Rath, SMS, NISER
Title: Vector Bundles and Locally Free Sheaves

Abstract: The aim of the talk is to establish equivalence between vector bundles and locally free sheaves in algebraic geometry . We will...

Date/Time: Thursday, November 25, 2021 - 16:00
Venue: Vertual
Speaker: Prem Nigam kar, NISER
Title: JB algebras
Abstract: We will talk about JB-algebras and JC-algebras, the Jordan algebra counterparts of B*-algebras and C*-algebras respectively. We will start off with a few preliminaries in functional analysis, order unit spaces, and C*-algebras. Then, we shall see a few results about JB-...
Date/Time: Thursday, November 25, 2021 - 14:30 to 15:30
Venue: Online
Speaker: Mr. Aanjaneya Rath, SMS, NISER
Title: Complex Tori

Abstract: The goal of the talk is to study complex tori and see some of its properties .We will begin with defining what a complex tori is and...