2 citations · 3 across the 3 of their papers we have counts for
6 papers
Strong discrete Morse theory
Ximena L. Fernández
The purpose of this work is to develop a version of Forman's discrete Morse theory for simplicial complexes, based on internal strong collapses. Classical discrete Morse theory can…
Intrinsic persistent homology via density-based metric learning
Ximena Fernández, Eugenio Borghini, Gabriel Mindlin +1
We address the problem of estimating topological features from data in high dimensional Euclidean spaces under the manifold assumption. Our approach is based on the computation of…
Morse theory for group presentations
Ximena Fernández
We introduce a novel combinatorial method to study -transformations of group presentations or, equivalently, 3-deformations of CW-complexes of dimension 2. Our procedure is…
CHILES: HI morphology and galaxy environment at z=0.12 and z=0.17
Kelley M. Hess, Nicholas M. Luber, Ximena Fernández +27
We present a study of 16 HI-detected galaxies found in 178 hours of observations from Epoch 1 of the COSMOS HI Large Extragalactic Survey (CHILES). We focus on two redshift ranges…
BUDHIES III: The fate of HI and the quenching of galaxies in evolving environments
Yara L. Jaffé, Marc A. W. Verheijen, Chris P. Haines +13
In a hierarchical Universe clusters grow via the accretion of galaxies from the field, groups and even other clusters. As this happens, galaxies can lose their gas reservoirs via d…
Early Science with the Large Millimeter Telescope: COOL BUDHIES I - a pilot study of molecular and atomic gas at z~0.2
Ryan Cybulski, Min S. Yun, Neal Erickson +20
An understanding of the mass build-up in galaxies over time necessitates tracing the evolution of cold gas (molecular and atomic) in galaxies. To that end, we have conducted a pilo…