activity
20122025
most citedOdd entanglement entropy in deformed CFTs and holography

8 citations · 11 across the 8 of their papers we have counts for

collaborators

8 papers

math.NT2025

Duality of Selmer groups of an abelian variety over a number field

Saikat Biswas

Let be an abelian variety defined over a number field and let be the dual abelian variety. For an odd prime , we consider two Selmer groups attached to …

hep-th2023★ 8 cited

Odd entanglement entropy in deformed CFTs and holography

Debarshi Basu, Saikat Biswas, Ankur Dey +2

We construct a replica technique to perturbatively compute the odd entanglement entropy (OEE) for bipartite mixed states in deformed CFTs. This framewo…

math.NT2016

Capitulation, unit groups, and the cohomology of -idèle classes

Saikat Biswas

Let be a finite, cyclic extension of number fields with Galois group , and let be a finite set of primes of that includes all the infinite primes. In this paper, w…

math.NT2016

Brauer groups of torsors under algebraic tori

Saikat Biswas

Let be an algebraic torus defined over a global field . For any -torsor under , we relate the Brauer group of to the adéle class group of as well as to the…

math.NT2015

Cohomology of adéle class groups of algebraic tori

Saikat Biswas

Let be an algebraic torus defined over a global field and split over a finite cyclic extension. In this paper, we determine the Herbrand quotient of the adéle class group o…

math.NT2014★ 1 cited

Groups of components of Néron models of Jacobians and Brauer groups

Saikat Biswas

Let be a proper, smooth, and geometrically connected curve over a non-archimedean local field . In this paper, we relate the component group of the Néron model of the Jacobi…

math.NT2013★ 1 cited

Tamagawa Torsors of an Abelian Variety

Saikat Biswas

For an abelian variety over a number field , we define the set of Tamagawa torsors of at a prime of to be the set of principal homogeneous spaces of over the…

math.NT2012★ 1 cited

Constructing non-trivial elements of the Shafarevich-Tate group of an Abelian Variety over a Number Field

Amod Agashe, Saikat Biswas

The second part of the Birch and Swinnerton-Dyer (BSD) conjecture gives a conjectural formula for the order of the Shafarevich-Tate group of an elliptic curve in terms of other com…