11 citations · 12 across the 2 of their papers we have counts for
2 papers
math.AT2015★ 1 cited
Yet another Hopf Invariant
Jean-Paul Doeraene, Mohammed El Haouari
The classical Hopf invariant is defined for a map f: S^r -> X. Here we define `hcat' which is some kind of Hopf invariant built with a construction in Ganea's style, valid for maps…
math.AT2011★ 11 cited
Up to one approximations of sectional category and topological complexity
Jean-Paul Doeraene, Mohammed El Haouari
James' sectional category and Farber's topological complexity are studied in a general and unified framework. We introduce `relative' and `strong relative' forms of the category fo…