Results 1 to 10 of about 69 (27)
Parametrised topological complexity of group epimorphisms [PDF]
, 2021 Peer ...
Grant, Mark
core +3 more sources
Formality and hard Lefschetz property of aspherical manifolds [PDF]
, 2012 For a Lie group $G=\R^{n}\ltimes_{\phi}\R^{m}$ with the semi-simple action $\phi:\R^{n}\to {\rm Aut}(\R^{m})$, we show that if $\Gamma$ is a finite extension of a lattice of $G$ then $K(\Gamma, 1)$ is formal.
Kasuya, Hisashi
core +3 more sources
New lower bounds for the topological complexity of aspherical spaces [PDF]
, 2015 Date of Acceptance: 5/04/2015 15 pages, 4 figuresPeer ...
Grant, Mark +2 more
core +3 more sources
On Poincaré duality for pairs (G,W)
Open Mathematics, 2015 Let G be a group and W a G-set. In this work we prove a result that describes geometrically, for a Poincaré duality pair (G, W ), the set of representatives for the G-orbits in W and the family of isotropy subgroups.
Andrade Maria Gorete Carreira +2 more
doaj +1 more source
Homotopy colimits of nilpotent spaces [PDF]
, 2014 We show that cellular approximations of nilpotent Postnikov stages are always nilpotent Postnikov stages, in particular classifying spaces of nilpotent groups are turned into classifying spaces of nilpotent groups.
Chacholski, Wojciech +3 more
core +2 more sources
Nullification functors and the homotopy type of the classifying space for proper bundles [PDF]
, 2005 Let G be a discrete group for which the classifying space for proper G-actions is finite-dimensional. We find a space W such that for any such G, the classifying space PBG for proper G-bundles has the homotopy type of the W-nullification of BG.
Baum +19 more
core +5 more sources
, 2017 Which spaces look like an n-sphere through the eyes of the n-th Postnikov section functor and the n-connected cover functor? The answer is what we call the Postnikov genus of the n-sphere.
Møller, Jesper M., Scherer, Jérôme
core +2 more sources
Towards a splitting of the $K(2)$-local string bordism spectrum
, 2018 We show that $K(2)$-locally, the smash product of the string bordism spectrum and the spectrum $T_2$ splits into copies of Morava $E$-theories. Here, $T_2$ is related to the Thom spectrum of the canonical bundle over $\Omega SU(4)$.Comment: Revised ...
Laures, Gerd, Schuster, Björn
core +1 more source
EMPIRICAL MODELS FOR PREDICTION COMPRESSION STRENGTH OF PAPERBOARD CARTON [PDF]
, 2022 When designing packaging in the shape of a rectangular parallelepiped from various paperboard materials, it is important to determine their resistance to vertical compression force, which should be less than the critical compression force.
Gegeckienė, Laura +4 more
core +1 more source
Can one classify finite Postnikov pieces?
, 2009 We compare the classical approach of constructing finite Postnikov systems by k-invariants and the global approach of Dwyer, Kan, and Smith. We concentrate on the case of 3-stage Postnikov pieces and provide examples where a classification is feasible ...
Moller, Jesper M., Scherer, Jerome
core +3 more sources