Definition 22.5.3 (09JQ)—The Stacks project

Loading [MathJax]/extensions/tex2jax.js

Table of contents
Part 1: Preliminaries
Chapter 22: Differential Graded Algebra
Section 22.5: The homotopy category
Definition 22.5.3 (cite)

previous lemma
next lemma

numberstags

history
statistics

Definition 22.5.3. Let $(A, \text{d})$ be a differential graded algebra. The homotopy category, denoted $K(\text{Mod}_{(A, \text{d})})$, is the category whose objects are the objects of $\text{Mod}_{(A, \text{d})}$ and whose morphisms are homotopy classes of homomorphisms of differential graded $A$-modules.

Comments (1)

Comment #280 by Pieter Belmans on August 31, 2013 at 10:40

In the second sentence, "the" is repeated.

There are also:

3 comment(s) on Section 22.5: The homotopy category

In your comment you can use Markdown and LaTeX style mathematics (enclose it like $\pi$ ). A preview option is available if you wish to see how it works out (just click on the eye in the toolbar).

Comments (1)

Post a comment