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arXiv:2007.13702 [math.AT]AbstractReferencesReviewsResources

Obstructions in a model category and Klein and Williams' intersection invariants

Kate Ponto

Published 2020-07-27Version 1

We give an obstruction for lifts and extensions in a model category inspired by Klein and Williams' work on intersection theory. In contrast to the familiar obstructions from algebraic topology, this approach produces a single invariant that is complete in the presences of the appropriate generalizations of dimension and connectivity assumptions.

Categories: math.AT
Subjects: 55S35, 18N40, 55U35, 55Q05
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