Representation Theory of Finite Semigroups, Semigroup Radicals and Formal Language Theory
In this paper we characterize the congruence associated to the direct sum of all irreducible representations of a finite semigroup over an arbitrary field...
The paper outlines research and development needed over the next decade to enable three-dimension mapping of the Universe using the 21 cm line of neutral...
Research on candidates for non-cosmological redshifts
The paradox of apparent optical associations of galaxies with very different redshifts, the so-called anomalous redshift problem, is around 35 years old, but is...
Resolved and unresolved populations: statistics and synthesis models
In this contribution, I present 90%-confidence limits on diagnostic diagrams of Wλ(WR-bump) and L(WR-bump)/L(Hβ) ratio vs Wλ(Hβ) resulting from evolutionary...
"Using high resolution spectroscopic data obtained with Magellan Inamori Kyocera Echelle (MIKE) at the Magellan telescope at Las Campanas Observatory it was...
Resolved stellar populations in dSphs. What can they tell us about galaxy evolution?
We present a comprehensive photometric study of the Fornax and the Andromeda II dwarf spheroidal (dSph) galaxies. It is based on the up-to-date deepest...