26 citations · 63 across the 31 of their papers we have counts for
4 papers · 2 filters
On quantum large sieve inequalities and operator recovery from incomplete information
Luís Daniel Abreu, Michael Speckbacher, Erling A. T. Svela
We obtain large sieve type inequalities for the Rayleigh quotient of the restriction of phase space representations of higher rank operators, via an operator analogue of the short-…
Localized frames without inequalities
Peter Balazs, Lukas Köhldorfer, Michael Speckbacher
We consider countable families of vectors in a separable Hilbert space, which are mutually localized with respect to a fixed localized Riesz basis. We prove the equivalence of the…
Localised frames for tensor product spaces
Dimitri Bytchenkoff, Michael Speckbacher, Peter Balazs
In this paper, we investigate whether the tensor product of two frames, each individually localised with respect to a spectral matrix algebra, is also localised with respect to a s…
How large are the gaps in phase space?
Michael Speckbacher
Given a sampling measure for the wavelet transform (resp. the short-time Fourier transform) with the wavelet (resp. window) being chosen from the family of Laguerre (resp. Hermite)…