Kuntal Chakraborty

collaborators

3 papers

math.KT2026

Improved injective stability for relative $K_{1} Sp$ -groups

Sourjya Banerjee, Kuntal Chakraborty

We prove a relative version of Vorst's theorem concerning the equality of the group of all invertible matrices and the group of all elementary matrices over $R [X]$ with respect to…

math.KT2021

A note on relative Vaserstein symbol

Kuntal Chakraborty

In an unpublished work of Fasel-Rao-Swan the notion of the relative Witt group $W_{E} (R, I)$ is defined. In this article we will give the details of this construction. Then we studied…

math.KT2021

NK_1 of Bak's unitary group over Graded Rings

Rabeya Basu, Kuntal Chakraborty

For an associative ring $R$ with identity, we study the absence of $k$ -torsion in NK_1GQ(R); Bass nil-groups for the general quadratic or Bak's unitary groups. By using a graded ve…

Improved injective stability for relative K1​Sp-groups

A note on relative Vaserstein symbol

NK_1 of Bak's unitary group over Graded Rings

Improved injective stability for relative $K_{1} Sp$ -groups