On Subgroups Finite Index in Complex Hyperbolic Lattice Triangle Groups
نویسندگان
چکیده
We study several explicit finite index subgroups in the known complex hyperbolic lattice triangle groups, and show some of them are neat, have positive first Betti number, a homomorphisms onto non-Abelian free group. For we determine minimal neat subgroup. Finally, answer question raised by Stover describe an infinite tower ball quotients all with single cusp.
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ژورنال
عنوان ژورنال: Experimental Mathematics
سال: 2023
ISSN: ['1944-950X', '1058-6458']
DOI: https://doi.org/10.1080/10586458.2022.2158969