Hopf invariants for sectional category with applications to topological robotics
نویسندگان
چکیده
منابع مشابه
Axioms for Hopf Invariants
1. Since H. Hopf first proved that irziS) « Z by showing that a certain invariant was non tri vial, several similar invariants—called generalized Hopf invariants—have been described; indeed, there are no less than 6 different definitions in the literature, and it was not always clear whether theorems about one applied to others. Many definitions were riddled with choices which had to be made, a...
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ژورنال
عنوان ژورنال: The Quarterly Journal of Mathematics
سال: 2019
ISSN: 0033-5606,1464-3847
DOI: 10.1093/qmath/haz019