Grigori Avramidi

activity

20112026

most citedMod

p

and torsion homology growth in nonpositive curvature

13 citations · 37 across the 17 of their papers we have counts for

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3 papers · 1 filter

math.GT2026

Reflections on branched covers

Grigori Avramidi, Boris Okun, Kevin Schreve

A flag complex $L$ determines a locally CAT(0) cube complex $P_{L}$ with the links of all vertices isomorphic to $L$ . The fundamental group of $P_{L}$ is the commutator subgroup of the…

math.GT2026

Cellular waists of hyperbolic spaces

Grigori Avramidi, Thomas Delzant

We find lower bounds on the topological complexity of fibers of PL and generic smooth maps $p : M^{d} \to R^{m}$ , where $M^{d}$ is a closed hyperbolic manifold of large injec…

math.AT2026

L^2-Betti numbers in prime characteristic and a conjecture of Wise

Grigori Avramidi, Wolfgang Lueck

We systematically study L^2-Betti numbers in zero and prime characteristic and apply them to a conjecture of Wise stating that all towers of a finite 2-complex are non-positive if…