Samuel A. Ballas

collaborators

2 papers

math.FA2026

Geometric Perspective on Concentration Phenomena in Frame Theory

Samuel A. Ballas, Samuel Ballas, Ferhat Karabatman +1

Parseval and equal-norm frames play a fundamental role in frame theory and signal processing. It is known that a random frame, with unit vectors drawn independently from the unifor…

math.GT2026

Parabolic-preserving deformations of cusped hyperbolic lattices

Samuel A. Ballas, Julien Paupert, Pierre Will

We study deformations of non-cocompact lattices of $SO (n, 1)$ into $SU (n, 1)$ and $SO (n + 1, 1)$ . A necessary condition for these deformations to remain discrete and f…