Results 11 to 20 of about 62,319 (281)

Polyhedral Covers of Tree Space [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2013
The phylogenetic tree space, introduced by Billera, Holmes, and Vogtmann, is a cone over a simplicial complex. In this short article, we construct this complex from local gluings of classical polytopes, the associahedron and the permutohedron.
Devadoss, Satyan L.   +2 more
core   +3 more sources

One-degree-of-freedom flat-foldable thick-panel origami-kirigami structures: modular arrays and closed polyhedra [PDF]

open access: yesCommunications Engineering
Origami structures hold promising potential in space applications, such as ultra-large-area solar arrays, deployable space stations, and extra-terrestrial modular foldable buildings.
Chong Zhao   +10 more
doaj   +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

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

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

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

State-Space Region-Invariance of Discrete-Time Control Systems

open access: yesIEEE Access, 2023
In the paper, the so-called region-invariance properties of discrete-time control systems are considered. An already known notion of positivity of control systems has been generalized (using a kind of geometric insight instead of a pure algebraic ...
Wiktor Malesza, Michal Slawomir Wiraszka
doaj   +1 more source

Combinatorial and Computational Investigations of Neighbor-Joining Bias

open access: yesFrontiers in Genetics, 2020
The Neighbor-Joining algorithm is a popular distance-based phylogenetic method that computes a tree metric from a dissimilarity map arising from biological data.
Ruth Davidson, Abraham Martín del Campo
doaj   +1 more source

Geometric Model Checking of Continuous Space [PDF]

open access: yesLogical Methods in Computer Science, 2022
Topological Spatial Model Checking is a recent paradigm where model checking techniques are developed for the topological interpretation of Modal Logic. The Spatial Logic of Closure Spaces, SLCS, extends Modal Logic with reachability connectives that, in
Nick Bezhanishvili   +5 more
doaj   +1 more source

Rethinking polyhedrality for lindenstrauss spaces [PDF]

open access: yesIsrael Journal of Mathematics, 2016
A Banach space is a Lindenstrauss space if its dual is isometric to \(L_1(\mu)\) for some measure \(\mu\); it is polyhedral if the unit balls of its finite-dimensional subspaces are polytopes. In [Proc. Am. Math. Soc. 23, 378--385 (1969; Zbl 0184.15101)], \textit{M.
Casini, Emanuele   +3 more
openaire   +4 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.
Botero, Ana Maria   +2 more
openaire   +4 more sources

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