DESCRIPTION

Variants of the local-global principle beginning with Hasse's theorem for quadratic forms are many. Extension of Hasse's theorem to homogeneous spaces of connected linear algebraic groups over a number field, and to homogeneous spaces of linear algebraic groups over function fields in one variable over a local field are two such variants. Conjectures concerning the existence of rational points and zero-cycles, and their interactions with analytic number theory and motivic cohomology fall under the realm of this study. Involving objects like Brauer group and Chow groups, and drawing techniques from algebraic K-theory, this programme sets out to examine recent progress in these areas.

PROGRAM ACTIVITIES

WORKSHOP 1

Arithmetic of Algebraic Cycles

27 - 29 January, 2026

WORKSHOP 2

Linear Algebraic Groups over Arithmetic Fields

17 - 19 March, 2026

WORKSHOP 3

Varieties with many rational points

14 - 16 April, 2026

To Be Updated

NAME AFFILIATON
Olivier Benoist CNRS DMA Ecole Normale Supérieure Paris
Patrick G. Brosnan University of Maryland USA
Philippe Gille CNRS, Institut Camille Jordan, Lyon, France
Boris È. Kunyavskiĭ Bar-Ilan University, Israel
Fabien Morel Ludwig Maximilans Universität München, Deutschland
Gopal Prasad University of Michigan
M. S. Raghunathan TIFR, Mumbai
Stefan Schreieder Leibniz Universität Hannover, Deutschland
Efthymios Sofos Glasgow University, Scotland
Alexei Skorobogatov Imperial College London
Fei Xu Capital Normal University, Beijing

ORGANISERS

Jean-Louis Colliot-Thélène

Université Paris-Saclay

Raman Parimala

Emory University

Anand Sawant

TIFR Mumbai

Federico Scavia

Université Sorbonne Paris-Nord

PROGRAM COORDINATOR

ANAND SAWANT

asawant@math.tifr.res.in