this study was conducted to determine the location of dna segment with homology to the rat conserved genomic dna in human chromosomes. the labeled rat genomic dna was hybridized with normal human (male) metaphases. the study of 74 metaphases after fluorescence in situ hybridization showed 371 twin-spot signals on human chromosomes. statistical analysis indicated that the specific accumulation o...

There are different notions of homology and cohomology that can be defined for a group with an action another by automorphisms. In this paper we address three natural questions arise in context. Namely, the relation these usual (co)homology semidirect product, interpretation first as some kind abelianization classification (invariant) extensions.

Magnitude is a numerical invariant of enriched categories, including in particular metric spaces as $[0,\infty)$-enriched categories. We show that many cases magnitude can be categorified to homology theory for which we call (in fact, it special sort Hochschild homology), whose graded Euler characteristic the magnitude. generalizes Hepworth--Willerton graphs, and detects geometric information s...