activity
20132026
most citedMacroscopic Schoen conjecture for manifolds with non-zero simplicial volume

9 citations · 19 across the 4 of their papers we have counts for

collaborators

6 papers

math.DG2026

Macroscopic scalar curvature bounds on graphs

Steve Karam, Stéphane Sabourau

We establish sharp lower bounds for the lengths of balls in the universal covers of finite metric graphs. For a finite connected -regular graph, with and average edge…

math.DG2026

Ball growth at all scales in universal covers of short metric graphs

Steve Karam

Let be a connected metric graph of first Betti number , and let be a trivalent graph of the same Betti number with all edges of unit length. We show that if $\tex…

math.GT2018★ 7 cited

Minimal length product over homology bases of manifolds

Florent Balacheff, Steve Karam, Hugo Parlier

Minkowski's second theorem can be stated as an inequality for -dimensional flat Finsler tori relating the volume and the minimal product of the lengths of closed geodesics which…

math.DG2017★ 9 cited

Macroscopic Schoen conjecture for manifolds with non-zero simplicial volume

Florent Balacheff, Steve Karam

We prove that given a hyperbolic manifold endowed with an auxiliary Riemannian metric whose sectional curvature is negative and whose volume is sufficiently small in comparison to…

math.DG2015★ 3 cited

Length product of homologically independent loops for tori

Florent Balacheff, Steve Karam

We prove that any Riemannian torus of dimension with unit volume admits homologically independent closed geodesics whose length product is bounded from above by .

math.DG2013

Short Homotopically independent loops on surfaces

Steve Karam

In this paper, we are interested in short homologically and homotopically independent loops based at the same point on Riemannian surfaces and metric graphs. First, we show that fo…