D. Das

activity

20242026

collaborators

Showing 2024Show all

2 papers · 1 filter

math.GT2024

Lifting closed curves to finite covers of free groups

Deblina Das, Arpan Kabiraj

In this article, we show that given any integer $l \geq 2$ , every closed curve $γ$ on the bouquet of $n$ -circles $Γ$ , admits a lift to a finite $l$ -sheeted normal covering of $Γ$ . E…

math.GT2024

Simple lift of non-simple closed curves

Deblina Das, Arpan Kabiraj

Given a compact, oriented surface $S$ of finite genus and finitely many boundary components, we provide examples of finite covers $S ~$ of $S$ and non-simple closed curves $γ…