Results 31 to 40 of about 62,319 (281)
The Polyhedron-Hitting Problem [PDF]
, 2014 We consider polyhedral versions of Kannan and Lipton's Orbit Problem (STOC '80 and JACM '86)---determining whether a target polyhedron V may be reached from a starting point x under repeated applications of a linear transformation A in an ambient vector ...
Chonev, Ventsislav +2 more
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Polyhedral quotient spaces [PDF]
Colloquium Mathematicum, 1991 Let \(P\) be a polyhedron and \(E\) an equivalence relation on \(P\). This paper gives criteria for when \(P/E\) is a PL quotient space, i.e. when \(P/E\) admits a PL structure so that the quotient map \(q: P\to P/E\) is PL. Under the hypothesis that \(q\) is nondegenerate the author provides a criterion that is easily applicable and recovers some ...
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A Note on Polyhedral Banach Spaces [PDF]
Proceedings of the American Mathematical Society, 1972 We give a sufficient condition for an infinitedimensional Banach space X to be polyhedral. If X ∗ {X^\ast } is an L-space this condition is also necessary.
Gleit, Alan, McGuigan, Robert
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Disodium tricopper(II) tetrakis[selenate(IV)] tetrahydrate
Acta Crystallographica Section E, 2008 The title compound, Na2Cu3(SeO3)4(H2O)4, has been prepared under hydrothermal conditions. The crystal structure contains a three-dimensional anionic framework made up from distorted [CuO4(H2O)2] octahedra (overline{1} symmetry), [CuO4(H2O)] square ...
Lan Zhang +5 more
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Local characterization of polyhedral spaces [PDF]
Geometriae Dedicata, 2015 We show that a compact length space is polyhedral if a small spherical neighborhood of any point is conic.
Lebedeva, Nina, Petrunin, Anton
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Polymer Testing, 2023 In this study, we employ fluorescence spectroscopy to monitor the curing process of a novel polybenzoxazine (PBZ) resin blend containing a polyhedral oligomeric silsesquioxane (POSS) reagent in a non-destructive way and compare it with the differential ...
Kyungil Kong +5 more
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Flexible polyhedra in the Minkowski 3-space [PDF]
, 2001 Given a polyhedral surface, assume that it is prohibited to change the shape and size of any face but it is permissible to change the dihedral angles between the faces.
Alexandrov, Victor
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Configuration spaces and polyhedral products
Advances in Mathematics, 2017 This paper aims to find the most general combinatorial conditions under which a moment-angle complex $(D^2,S^1)^K$ is a co-$H$-space, thus splitting unstably in terms of its full subcomplexes. In this way we study to which extent the conjecture holds that a moment-angle complex over a Golod simplicial complex is a co-$H$-space.
Beben, Piotr, Grbic, Jelena
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The structure of normal subsets of polyhedral cone
Қарағанды университетінің хабаршысы. Математика сериясы, 2017 The structure of normal convex subsets of polyhedral cone K in normalized space is in investigated. The normality of the subset Ω ⊂ K (in the sense of the cone K) is determined by the condition Ω - K ∩K = Ω (a line over a set means taking a topological ...
T.Kh. Makazhanova +2 more
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Boundaries and polyhedral Banach spaces [PDF]
Proceedings of the American Mathematical Society, 2015 We show that if X X and Y Y are Banach spaces, where Y Y is separable and polyhedral, and if T : X → Y T:X\to Y is a bounded linear operator such that T ∗ ( Y ∗ )
Fonf, V. P., Smith, R. J., Troyanski, S.
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