3 papers
astro-ph.GA2025
Capturing the short-term characteristics of a barred galaxy from a single snapshot
P. Sánchez-Martín, J. Amorós, J. J. Masdemont
Using a dataset of stars from a barred galaxy that provides instantaneous positions and velocities in the sky, we propose a method to identify its key structures, such as the centr…
cs.CG2024
Topological reconstruction of sampled surfaces via Morse theory
Franco Coltraro, Jaume Amorós, Maria Alberich-Carramiñana +1
In this work, we study the perception problem for sampled surfaces (possibly with boundary) using tools from computational topology, specifically, how to identify their underlying…
math.SG2024
Symplectized Torelli mapping tori
Jaume Amorós
Examples of aspherical closed symplectic 4-manifolds are presented whose Sullivan minimal models are (1,n)-formal for any n, without being formal. They have as cohomology algebra,…