On the invariant subspace problem in Hilbert spaces
In this paper we show that every bounded linear operator T on a Hilbert space H has a closed non-trivial invariant subspace.
math.FA↗
arXiv subjects
Per H. Enflo
Publications and source records attributed to Per H. Enflo.
A simple unified explanation of several genetic issues on today's human population and on archaic humans
We will give a simple, unified, possible explanation of several debated genetic issues on today's humans, Neandertals and Denisovans. In particular it is shown by means of a simple mathematical model why there is little genetic variation in todays's human population or in Western Neandertal population, why all mtDNA and y-chromosomes in today's humans seem to have African origin with no trace of Neandertal nor Denosovan mtDNA or y-chromosomes, why a big part of the European gene pool is young (from Neolitic time), and why today's East Asians have mode Neandertal genes than today's Europeans.
q-bio.PE↗