Prateep Chakraborty

activity

20182026

collaborators

3 papers

math.AT2026

On Projective and Flat Persistence Modules

Prateep Chakraborty, Giriraj Ghosh

In recent years, persistence modules have been viewed as graded modules with gradation over a preordered set serving as the indexing set. We provide sufficient criteria for a proje…

math.GT2023

A structure theorem and left-orderability of a quotient of quasi-isometry group of the real line

Swarup Bhowmik, Prateep Chakraborty

It is well-known that $Q I (R) ≅ (Q I (R_{+}) \times Q I (R_{-})) ⋊ < t >$ , where $Q I (R)$ (resp. $Q I (R_{+}) (≅ Q I (R_{-}))$ ) is t…

math.GT2018

On the center of the group of quasi-isometries of the real line

Prateep Chakraborty

Let $Q I (R)$ denote the group of all quasi-isometries $f : R \to R .$ Let $Q_{+} (and Q_{-})$ denote the subgroup of $Q I (R)$ consisting of elemen…