3 papers
math.MG2020
Sets with large intersection properties in metric spaces
Felipe Negreira, Emiliano Sequeira
In this work we reproduce the characterization of $\Gg^s$-sets from the euclidean setting [J. London Math. Soc. 49:267-280,1994] to more general metric spaces. These sets have Haus…
math.CA2018
The Nyquist sampling rate for spiraling curves
Philippe Jaming, Felipe Negreira, José Luis Romero
We consider the problem of reconstructing a compactly supported function from samples of its Fourier transform taken along a spiral. We determine the Nyquist sampling rate in terms…
math.CA2017
A sampling theorem for functions in Besov spaces on spaces of homogeneous type
Philippe Jaming, Felipe Negreira
In this work we establish a sampling theorem for functions in Besov spaces on spaces of homogeneous type as defined in [HY] in the spirit of their recent counterpart for R d establ…