Titlebook: Basic Homological Algebra; M. Scott Osborne Textbook 2000 Springer Science+Business Media New York 2000 Adjoint functor.Homological algeb

ARM

助記

Martin Goodman MD,David A. Geller MDIn what follows, .. We shall use the following notation, with . (or .) being a ring:

MELD

向外

東西

Michele Valiante,Paola GrammaticoA close look at much of the earlier material, especially in the last chapter, reveals the strong connection between projectives and injectives. The idea is this: Formulate your result purely in terms of arrows (morphisms), then reverse them. That is, work in the opposite category. Not everything can be done this way, but a surprising amount can.

ECG769

Pathology of Hepatocellular CarcinomaThis section uses material from Chapters 1 and 2.

Neutropenia

Categories,Homological algebra addresses questions that appear naturally in category theory, so category theory is a good starting point. Most of what follows is standard, but there are a few slippery points.

recession

EPT

貴族

Derived Functors,The purpose of this chapter and the next is to generalize the earlier constructions of Ext and Tor. In this chapter, functors beyond Horn and ? will be applied to projective (and injective) resolutions in .. In the next chapter, these constructions will be carried out in more general categories.