K theory and Homological Algebra : A Seminar held at the Razmadze Mathematical Institute in Tbilisi Georgia USSR 1987–88 Homological dimension of extensions of abelian categories and rings Classical algebraic K theory of monid algebras K theory of special normed rings Cohomology and extensions of internal modules Coefficients for cohomology of large categories K theory of 2 graded Banach categories. I On Quillens + construction of perfect groups Cohomology of small categories in homotopical algebra U theory of exact categories.