27 citations · 92 across the 25 of their papers we have counts for
Showing 2016Show all
2 papers · 1 filter
math.FA2016★ 4 cited
The Schur-Horn theorem for unbounded operators with discrete spectrum
Marcin Bownik, John Jasper, Bartłomiej Siudeja
We characterize diagonals of unbounded self-adjoint operators on a Hilbert space H that have only discrete spectrum, i.e., with empty essential spectrum. Our result extends the Sch…
math.FA2016
Wavelets for non-expanding dilations and the lattice counting estimate
Marcin Bownik, Jakob Lemvig
We show that problems of existence and characterization of wavelets for non-expanding dilations are intimately connected with the geometry of numbers; more specifically, with a bou…