Ravi Tomar

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20242026

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math.GT2026

Non-existence of Cannon-Thurston maps for hierarchically hyperbolic groups

Funda GÃ¼ltepe, Ravi Tomar

We prove that Cannon--Thurston maps do not exist for hyperbolic normal subgroups of hierarchically hyperbolic groups, both for Morse and hierarchically hyperbolic boundaries. This…

math.GT2024

Liftable mapping class groups of regular abelian covers

Neeraj K. Dhanwani, Pankaj Kapari, Kashyap Rajeevsarathy +1

Let $S_{g}$ be the closed oriented surface of genus $g \geq 0$ , and let $Mod (S_{g})$ be the mapping class group of $S_{g}$ . For $g \geq 2$ , we develop an algorithm to obtain a fi…