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A Note on Polyhedral Banach Spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
We give a sufficient condition for an infinitedimensional Banach space X to be polyhedral. If X
Gleit, Alan, McGuigan, Robert
exaly   +4 more sources

Boundaries and Polyhedral Banach Spaces [PDF]

open access: yesProceedings 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 ∗ )
S Troyanski
exaly   +5 more sources

Loop Spaces of Polyhedral Products Associated With the Polyhedral Join Product

open access: yesProceedings of the Edinburgh Mathematical Society
Abstract We provide a homotopy equivalence for the loop space of the polyhedral product associated with a simplicial complex formed via the polyhedral join operation, and give sufficient conditions under which this loop space is a finite-type product of spheres and loops on spheres.
Eldridge, Briony
exaly   +4 more sources

On Linear Spaces of Polyhedral Meshes [PDF]

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2015
Polyhedral meshes (PM) - meshes having planar faces - have enjoyed a rise in popularity in recent years due to their importance in architectural and industrial design. However, they are also notoriously difficult to generate and manipulate. Previous methods start with a smooth surface and then apply elaborate meshing schemes to create polyhedral meshes
Renjie Chen, Craig Gotsman
exaly   +6 more sources

Convex Analysis on Polyhedral Spaces [PDF]

open access: yesMathematische Zeitschrift, 2022
AbstractWe introduce notions of concavity for functions on balanced polyhedral spaces, and we show that concave functions on such spaces satisfy several strong continuity properties.
Martín Sombra
exaly   +7 more sources

Local Characterization of Polyhedral Spaces [PDF]

open access: yesGeometriae Dedicata, 2015
We show that a compact length space is polyhedral if a small spherical neighborhood of any point is conic.
Nina D Lebedeva, Anton Petrunin
exaly   +3 more sources

Best Approximation in Polyhedral Banach Spaces

open access: yesJournal of Approximation Theory, 2011
The authors study conditions under which the metric projection of a polyhedral Banach space \(X\) onto a closed subspace \(Y\) is Hausdorff lower or upper semicontinuous. The paper is organized as follows. Section 0 is an introduction. Section 1 contains notation concerning Banach spaces, followed by definitions and preliminary facts on polyhedral ...
Libor Vesely   +2 more
exaly   +2 more sources

Integrating geometries of ReLU feedforward neural networks

open access: yesFrontiers in Big Data, 2023
This paper investigates the integration of multiple geometries present within a ReLU-based neural network. A ReLU neural network determines a piecewise affine linear continuous map, M, from an input space ℝm to an output space ℝn.
Yajing Liu   +3 more
doaj   +1 more source

Tropicalization of the universal Jacobian [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2022
In this article we provide a stack-theoretic framework to study the universal tropical Jacobian over the moduli space of tropical curves. We develop two approaches to the process of tropicalization of the universal compactified Jacobian over the moduli ...
Margarida Melo   +3 more
doaj   +1 more source

$k$-smoothness on polyhedral Banach spaces [PDF]

open access: yesColloquium Mathematicum, 2022
11 ...
Dey, Subhrajit   +2 more
openaire   +2 more sources

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