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We describe a unifying approach to a variety of homotopy decompositions of classifying spaces, mainly of finite groups. For a group G acting on a poset W and an isotropy presheaf d:W → (G) we construct a natural G-map $h o c o l i m_{_{d}} G / d (-) \to | W |$ which is a (non-equivariant) homotopy equivalence, hence $h o c o l i m_{_{d}} E G \times_{G} F_{d} \to E G \times_{G} | W |$ is a homotopy equivalence. Different choices of G-posets and isotropy presheaves on them lead to homotopy decompositions of classifying spaces. We analyze higher limits over the categories associated to isotropy presheaves...

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Geodesics on the tangent sphere bundles over space forms.

Geometric and homotopy theoretic methods in Nielsen coincidence theory.

Geometric interpretations of the generalized Hopf invariant.

Geometric methods for cohomological invariants.

Geometric Modules over the Burnside Ring.

Geometric proof of the easy part of the Hopf invariant one theorem

Geometric topology of stratified spaces.

Geometrically Defined Transfers, Comparisons.

Geometry of normed bilinear maps and the 16-square problem.

Gerbes and homotopy quantum field theories.

Germs of quasi-continuous functions

Geschlecht von Knoten mit zwei Brücken und die Faserbarkeit ihrer Außenräume.

G-functors, G-posets and homotopy decompositions of G-spaces

G-Invariante Morse-Funktionen.

Global actions, groupoid atlases and applications.

Global structure of the mod two symmetric algebra, $H^{*} (B O; 𝔽_{2})$ over the Steenrod Algebra.

Globalizing fibrations by schedules

Globular realization and cubical underlying homotopy type of time flow of process algebra.

Gorenstein rings with transcendental Poincaré-series.

Graded Brauer groups and $K$ -theory with local coefficients

Currently displaying 1041 – 1060 of 3053