APRG Seminar:     2021–22 talks
(Current organizers: Apoorva Khare and S. Thangavelu)

(click on the title-hyperlinks for the abstracts)


Most talks for this semester are online, on account of the Coronavirus pandemic.

July 13, 2022: Bidhan Chandra Sardar (IIT, Ropar)
11:30 am, Lecture Hall LH-1
Title: Homogenization of optimal control problem governed by Stokes system in a pillar-type domain

June 8, 2022: Sutanu Roy (NISER, Bhubaneswar)
4 pm, Lecture Hall LH-1
Title: Braided quantum symmetries of graph $C^*$-algebras

May 11, 2022: Parthanil Roy (ISI, Bangalore)
4 pm, Microsoft Teams (online)
Title: Amenable and hyperbolic groups, stable random fields, and von Neumann algebras
(Joint with the Geometry & Topology Seminar)     [Video]     [Slides]

April 28, 2022: Sourav Pal (IIT, Bombay)
3 pm, Lecture Hall LH-1
Title: Minimal dilations for commuting contractions and operator models

April 20, 2022: Alexander Belton (Lancaster University, Lancaster, UK)
4 pm, Microsoft Teams (online)
Title: Hirschman–Widder densities and their preservers     [Video]

April 13, 2022: Amudhan Krishnaswamy Usha (Technische Universiteit Delft, Netherlands)
4 pm, Microsoft Teams (online)
Title: Local and multilinear non-commutative de Leeuw theorems     [Video]

April 11, 2022: D V Giri (University of New Mexico and Pro-Tech, USA)
4 pm, Lecture Hall LH-1
Title: Complex variable theorems for finding zeroes and poles of transcendental functions

April 6, 2022: Malabika Pramanik (University of British Columbia, Canada)
8 pm, Microsoft Teams (online)
Title: Dimensionality and patterns with curvature     [Video]

March 30, 2022: Colin McSwiggen (Courant Institute, NYU, USA)
7 pm, Microsoft Teams (online)
Title: Cousins and ancestors of the arithmetic-geometric inequality     [Video]

March 23, 2022: Margit Rösler (Universit├Ąt Paderborn, Germany)
4 pm, Microsoft Teams (online)
Title: The Laplace transform in the Dunkl setting     [Video]

March 9, 2022: Kelly Bickel (Bucknell University, USA)
6 pm, Microsoft Teams (online)
Title: Blaschke Products, Level Sets, and Crouzeix's Conjecture     [Video]

February 16, 2022: Loredana Lanzani (Syracuse University, USA)
4 pm, Microsoft Teams (online)
Title: The Cauchy-Szego projection and its commutator for domains in \C^n with minimal smoothness: Optimal bounds     [Video]

February 9, 2022: Ali Baklouti (University of Sfax, Tunisia)
4 pm, Microsoft Teams (online)
Title: On the $L^p$-Fourier transform norm for compact extensions of locally compact groups     [Video]

February 2, 2022: Rahul Garg (IISER, Bhopal)
4 pm, Microsoft Teams (online)
Title: Grushin pseudo-multipliers     [Video]

January 26, 2022: No talk (Republic Day holiday)

January 19, 2022: María J. Carro (Universidad Complutense de Madrid, Madrid, Spain)
4 pm, Microsoft Teams (online)
Title: Restricted weak type $(1,1)$ estimates for averaging operators     [Video]

January 13, 2022: Peter Šemrl (University of Ljubljana, Slovenia)
4 pm, Microsoft Teams (online)
Title: On Wigner's theorem     [Video]

January 5, 2022: No talk (given the 17th Discussion Meeting in Harmonic Analysis)

December 2021: No talks (semester break)

November 24, 2021: James E. Pascoe (University of Florida, Gainesville, USA)
5:30 pm, Microsoft Teams (online)
Title: Geometric dilation and the quantum annulus     [Video]

November 17, 2021: Sutanu Roy (NISER, Bhubaneswar)
4 pm, Microsoft Teams (online)
Title: Homogeneous quantum symmetries of finite spaces over the circle group     [Video]

November 10, 2021: Siddhartha Mishra (ETH Zurich, Switzerland)
5 pm, Microsoft Teams (online)
Title: Deep Learning for PDEs     [Video]

November 3, 2021: No talk (given Rakesh Kumar's thesis defence)

October 27, 2021: Greg Knese (Washington University in St. Louis, USA)
4:30 pm, Microsoft Teams (online)
Title: Local theory of stable polynomials and bounded rational functions of several variables     [Video]

October 20, 2021: Rajula Srivastava (University of Wisconsin at Madison, USA)
6:30 pm, Microsoft Teams (online)
Title: Lebesgue space estimates for spherical maximal functions on Heisenberg groups     [Video]

October 13, 2021: E.K. Narayanan (IISc Mathematics)
4 pm, Microsoft Teams (online)
Title: Injectivity of spherical means on $H$-type groups     [Video]

October 6, 2021: S. Thangavelu (IISc Mathematics)
4 pm, Microsoft Teams (online)
Title: An analogue of Beurling's theorem for the Heisenberg group     [Video]

September 29, 2021: Charles Fefferman (Princeton University, USA)
6:30 pm, Microsoft Teams (online)
Title: Interpolation of Data by Smooth Functions     [Video]

September 22, 2021: Bernhard Krötz (Universität Paderborn, Germany)
4 pm, Microsoft Teams (online)
Title: Double N-picture for the Poisson transform on G/K

September 15, 2021: No talk (given the Joint Math Symposium with IISER Pune)

September 8, 2021: No talk (given the preceding week)

September 1, 2021: David Beltran (University of Wisconsin at Madison, USA)
6:30 pm, Microsoft Teams (online)
Title: $L^p$ bounds for the helical maximal function

September 1, 2021: Christian Berg (University of Copenhagen, Denmark)
4 pm, Microsoft Teams (online)
Title: A unified view of space-time covariance functions through Gelfand Pairs

Upcoming talks:


Previous years:
2020–21
2019–20
2018–19
2017–18