5 papers
Graphs with connectivity are globally synchronizing
Saba Lepsveridze, Sam Zhang
We study synchronization in the Kuramoto model on finite graphs. We prove that there is an absolute constant such that every finite simple graph on vertices with mini…
Optimal Spectral Algorithms for Correlated Two-view Models in High Dimensions
Hang Du, Henry Hu, Saba Lepsveridze
We study high-dimensional inference in correlated two-view models, focusing on spectral methods for strong detection and weak recovery. We introduce a general framework, motivated…
Uniform Geodesic Drawings of Graphs
Saba Lepsveridze, Oriol Solé-Pi
We study crossing numbers of dense graph drawings whose vertices are uniformly distributed either on the unit sphere or in a compact convex planar domain. We prove a sharp inequali…
Sharp Threshold for the Convergence of Nonstationary Averaging
Saba Lepsveridze, Elchanan Mossel
We study non-stationary averaging processes, where each term of a sequence is a weighted average of previous terms, namely . Our results extend c…
Optimal Thresholds for Monotone Non-Boolean Functions
Saba Lepsveridze, Allen Lin
Let , let denote the simplex of probability measures on , and let denote the Lebesgue measure normalized on . We prove that for any…