500 citations · 1.7k across the 46 of their papers we have counts for
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Rational function approximation with normalized positive denominators
James Chok, Geoffrey M. Vasil
Recent years have witnessed the introduction and development of extremely fast rational function algorithms. Many ideas in this realm arose from polynomial-based linear-algebraic a…
The photometric variability of massive stars due to gravity waves excited by core convection
Evan H. Anders, Daniel Lecoanet, Matteo Cantiello +8
Massive stars die in catastrophic explosions, which seed the interstellar medium with heavy elements and produce neutron stars and black holes. Predictions of the explosion's chara…
The Puzzling Structure of Solar Convection: Window into the Dynamo
Nicholas A. Featherstone, Kyle C. Augustson, Jonathan M. Aurnou +25
The operation of the solar dynamo, with all of its remarkable spatio-temporal ordering, remains an outstanding problem of modern solar physics. A number of mechanisms that might pl…
Convex optimization over a probability simplex
James Chok, Geoffrey M. Vasil
We propose a new iteration scheme, the Cauchy-Simplex, to optimize convex problems over the probability simplex . Spe…
Orthogonal signed-distance coordinates and vector calculus near evolving curves and surfaces
Eric W. Hester, Geoffrey M. Vasil
We provide an elementary derivation of an orthogonal coordinate system for boundary layers around evolving smooth surfaces and curves based on the signed-distance function. We go b…
A continuum limit for dense spatial networks
Sidney Holden, Geoffrey Vasil
Many physical systems -- such as optical waveguide lattices and dense neuronal or vascular networks -- can be modeled by metric graphs, where slender "wires" (edges) support wave o…