Page 1

Displaying 1 – 4 of 4

Showing per page

Stratified model categories

Jan Spaliński (2003)

Fundamenta Mathematicae

The fourth axiom of a model category states that given a commutative square of maps, say i: A → B, g: B → Y, f: A → X, and p: X → Y such that gi = pf, if i is a cofibration, p a fibration and either i or p is a weak equivalence, then a lifting (i.e. a map h: B → X such that ph = g and hi = f) exists. We show that for many model categories the two conditions that either i or p above is a weak equivalence can be embedded in an infinite number of conditions which imply the existence of a lifting (roughly,...

Currently displaying 1 – 4 of 4

Page 1