2 citations · 4 across the 4 of their papers we have counts for
5 papers
Fractional modelling of COVID-19 transmission incorporating asymptomatic and super-spreader individuals
Moein Khalighi, Leo Lahti, Faïçal Ndaïrou +2
The COVID-19 pandemic has presented unprecedented challenges worldwide, necessitating effective modelling approaches to understand and control its transmission dynamics. In this st…
A time-frequency density criterion for operator identification
Niklas Grip, Götz E. Pfander, Peter Rashkov
We establish a necessary density criterion for the identifiability of time-frequency structured classes of Hilbert-Schmidt operators. The density condition is based on the density…
A geometric construction of tight Gabor frames with multivariate compactly supported smooth windows
Götz E. Pfander, Peter Rashkov, Yang Wang
The geometry of fundamental domains of lattices was used by Han and Wang to construct multivariate Gabor frames for separable lattices. We build upon their results to obtain Gabor…
Remarks on multivariate Gaussian Gabor frames
G"otz E. Pfander, Peter Rashkov
We report on initial findings on Gabor systems with multivariate Gaussian window. Unlike the existing characterisation for dimension one in terms of lattice density, our results in…
Uncertainty in time--frequency representations on finite Abelian groups and applications
Felix Krahmer, Goetz E. Pfander, Peter Rashkov
Classical and recent results on uncertainty principles for functions on finite Abelian groups relate the cardinality of the support of a function to the cardinality of the support…