2 papers
astro-ph.SR2026
Survey of Surveys Data Release 3. Homogenised stellar parameters across nine spectroscopic surveys
A. Avdeeva, E. Pancino, A. Turchi +12
Large spectroscopic surveys have measured atmospheric parameters for millions of Milky Way stars, but differences in instruments, wavelength ranges, analysis methods, and assumptio…
math.AT2026
The equal norm Grassmannian: topology and applications to frame fields
Samuel A. Ballas, Ferhat Karabatman, Tom Needham +1
Given an orientable rank- vector bundle over a -manifold, the Euler class is the unique obstruction to finding a nowhere-zero section. An equal norm Parseval frame is a certa…