1 citations · 1 across the 7 of their papers we have counts for
7 papers
Spectral deviation of concentration operators on reproducing kernel Hilbert spaces
Felipe Marceca, José Luis Romero, Michael Speckbacher +1
We study the eigenvalue profile of concentration operators (multiplication by an indicator function followed by projection) acting on reproducing kernel Hilbert spaces. The spectra…
Stability in unlimited sampling
José Luis Romero, Irina Shafkulovska
Folded sampling replaces clipping in analog-to-digital converters by reducing samples modulo a threshold, thereby avoiding saturation artifacts. We study the reconstruction of band…
Compiling Gradual Types with Evidence
José Luis Romero, Cristóbal Isla, Matías Toro +1
Efficiently supporting sound gradual typing in a language with structural types is challenging. To date, the Grift compiler is the only close-to-the-metal implementation of gradual…
Model agnostic signal encoding by leaky integrate and fire, performance and uncertainty
Diana Carbajal, José Luis Romero
Integrate-and-fire is a resource efficient time-encoding mechanism that summarizes into a signed spike train those time intervals where a signal's charge exceeds a certain threshol…
Enhancing sharp augmented Lagrangian methods with smoothing techniques for nonlinear programming
José Luis Romero, Damián Fernandez, Germán Ariel Torres
This paper proposes a novel approach to solving nonlinear programming problems using a sharp augmented Lagrangian method with a smoothing technique. Traditional sharp augmented Lag…
Hölder-Continuity of Extreme Spectral Values of Pseudodifferential Operators, Gabor Frame Bounds, and Saturation
Karlheinz Gröchenig, José Luis Romero, Michael Speckbacher
We build on our recent results on the Lipschitz dependence of the extreme spectral values of one-parameter families of pseudodifferential operators with symbols in a weighted Sjöst…
Lipschitz Continuity of Spectra of Pseudodifferential Operators in a Weighted Sjöstrand Class and Gabor Frame Bounds
Karlheinz Gröchenig, José Luis Romero, Michael Speckbacher
We study one-parameter families of pseudodifferential operators whose Weyl symbols are obtained by dilation and a smooth deformation of a symbol in a weighted Sjöstrand class. We s…