Friedrich Wehrung – författare
Visar alla böcker från författaren Friedrich Wehrung. Handla med fri frakt och snabb leverans.
4 produkter
4 produkter
Häftad, Engelska, 2014
1 082 kr
Skickas inom 10-15 vardagar
George Grätzer's Lattice Theory: Foundation is his third book on lattice theory (General Lattice Theory, 1978, second edition, 1998). Congruence Lattices of Infinite Lattices and Beyond includes four chapters by Friedrich Wehrung and George Grätzer.
Häftad, Engelska, 2016
1 404 kr
Skickas inom 10-15 vardagar
George Grätzer's Lattice Theory: Foundation is his third book on lattice theory (General Lattice Theory, 1978, second edition, 1998).
Del 2188 - Lecture Notes in Mathematics
Refinement Monoids, Equidecomposability Types, and Boolean Inverse Semigroups
Häftad, Engelska, 2017
544 kr
Skickas inom 10-15 vardagar
Adopting a new universal algebraic approach, this book explores and consolidates the link between Tarski's classical theory of equidecomposability types monoids, abstract measure theory (in the spirit of Hans Dobbertin's work on monoid-valued measures on Boolean algebras) and the nonstable K-theory of rings. This is done via the study of a monoid invariant, defined on Boolean inverse semigroups, called the type monoid. The new techniques contrast with the currently available topological approaches. Many positive results, but also many counterexamples, are provided.
Del 2029 - Lecture Notes in Mathematics
From Objects to Diagrams for Ranges of Functors
Häftad, Engelska, 2011
412 kr
Skickas inom 10-15 vardagar
This work introduces tools, from the field of category theory, that make it possible to tackle until now unsolvable representation problems (determination of the range of a given functor). The basic idea is: if a functor lifts many objects, then it also lifts many (poset-indexed) diagrams.