5 citations · 8 across the 3 of their papers we have counts for
3 papers
quant-ph2005
Theorem of Levinson Via The Spectral Density
L. J. Boya, J. Casahorran
We deduce Levinson\'{}s theorem in non-relativistic quantum mechanics in one dimension as a sum rule for the spectral density constructed from asymptotic data. We assume a self-adj…
math-ph2004★ 3 cited
Spinors and Octonions
Luis J. Boya
Octonions are introduced through some spin representations. The groups , and the series appear in a natural manner; one way to understand octonions is as the "second…
physics.hist-ph2004★ 5 cited
The Thermal Radiation Formula of Planck (1900)
Luis J. Boya
We review the derivation of Planck's Radiation Formula on the light of recent studies in its centenary. We discuss specially the issue of discreteness, Planck's opinion on his disc…