Results 21 to 30 of about 86,947 (289)
Exponential multivalued forbidden configurations [PDF]
Discrete Mathematics & Theoretical Computer Science, 2021 The forbidden number $\mathrm{forb}(m,F)$, which denotes the maximum number of unique columns in an $m$-rowed $(0,1)$-matrix with no submatrix that is a row and column permutation of $F$, has been widely studied in extremal set theory.
Travis Dillon, Attila Sali
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Extreme Points of Matrix Convex Sets, Free Spectrahedra, and Dilation Theory [PDF]
The Journal of Geometric Analysis, 2017 This version corrects dropped hypotheses in Theorem 1.1 (1) and Proposition 6.1. A detailed explanation of the corrections is found in a new section, Section 8.
Evert, Eric +3 more
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Force-free higher derivative Einstein-Maxwell theory and multi-centered black holes
Journal of High Energy Physics, 2023 We investigate which 4-derivative extensions of Einstein-Maxwell theory admit multi-extremal black hole solutions with gravitational force balanced by Coulomb force.
Peng-Ju Hu, Yi Pang
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Hypergraphs with infinitely many extremal constructions
Discrete Analysis, 2023 Hypergraphs with infinitely many extremal constructions, Discrete Analysis 2023:18, 34 pp. A fundamental result in extremal graph theory, Turán's theorem, states that the maximal number of edges of a graph with $n$ vertices that does not contain a ...
Jianfeng Hou +4 more
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Capacities: From information theory to extremal set theory
Journal of Combinatorial Theory, Series A, 1994 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
J. Korner, GARGANO, Luisa, VACCARO, Ugo
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Non-minimally coupled multi-scalar black holes [PDF]
, 2007 We study the static, spherically symmetric black hole solutions for a non-minimally coupled multi-scalar theory. We find numerical solutions for values of the scalar fields when a certain constraint on the maximal charge is satisfied.
Alex B. Nielsen +2 more
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On the VC-dimension, covering and separating properties of the cycle and spanning tree hypergraphs of graphs [PDF]
Transactions on Combinatorics, 2022 In this paper, we delve into studying some relations between the structure of the cycles and spanning trees of a graph through the lens of its cycle and spanning tree hypergraphs which are hypergraphs with the edge set of the graph as their vertices ...
Alireza Mofidi
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Toral Algebraic Sets and Function Theory on Polydisks [PDF]
, 2005 A toral algebraic set $A$ is an algebraic set in $\C^n$ whose intersection with $\T^n$ is sufficiently large to determine the holomorphic functions on $A$.
Agler, Jim +2 more
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Near-extremal limits of warped black holes
SciPost Physics, 2023 A holographic description of three-dimensional warped black holes suffers from ambiguities due to a seemingly harmless choice of coordinate system.
Ankit Aggarwal, Alejandra Castro, Stéphane Detournay, Beatrix Mühlmann
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TWO DIMENSIONAL DILATON GRAVITY COUPLED TO AN ABELIAN GAUGE FIELD [PDF]
, 1995 The most general two-dimensional dilaton gravity theory coupled to an Abelian gauge field is considered. It is shown that, up to spacetime diffeomorphisms and $U(1)$ gauge transformations, the field equations admit a two-parameter family of distinct ...
A. Achucarro +38 more
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