Displaying similar documents to “The closure of a model category”

Lawvere, F.William

F.William Lawvere (1986)

Revista colombiana de matematicas

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Stratified model categories

Jan Spaliński (2003)

Fundamenta Mathematicae

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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...

On Kann's conditiion

C. Ruiz Salguero, R. Ruiz, S. Frias (1972)

Revista colombiana de matematicas

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