Results 101 to 110 of about 335 (183)
Discrete Mathematics, 1983 AbstractThe purpose of this note is to prove an identity for generalized Tutte-Grothendieck invariants, at least two special cases of which have already proved to be of considerable use. In addition, one of these special cases is used to strengthen results of Lindström on the critical exponent of a representable matroid and the chromatic number of a ...
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Multi-agent learning via gradient ascent activity-based credit assignment. [PDF]
Sci Rep, 2023 Sabri O, Lehéricy L, Muzy A.
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Journal of Combinatorial Theory, Series BGraphings serve as limit objects for bounded-degree graphs. We define the ``cycle matroid'' of a graphing as a submodular setfunction, with values in [0,1], which generalizes (up to normalization) the cycle matroid of finite graphs. We prove that for a Benjamini--Schramm convergent sequence of graphs, the total rank, normalized by the number of nodes ...
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Orthogonal matroids over tracts
Forum of Mathematics, SigmaWe generalize Baker–Bowler’s theory of matroids over tracts to orthogonal matroids, define orthogonal matroids with coefficients in tracts in terms of Wick functions, orthogonal signatures, circuit sets and orthogonal vector sets, and establish basic ...
Tong Jin, Donggyu Kim
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Saturation and periodic self-stress in geometric auxetics. [PDF]
R Soc Open Sci, 2022 Borcea CS, Streinu I.
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Tropical ideals do not realise all Bergman fans. [PDF]
Res Math Sci, 2021 Draisma J, Rincón F.
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Elliptic arrangements of complex multiplication type
Forum of Mathematics, SigmaWe provide a natural definition of an elliptic arrangement, extending the classical framework to an elliptic curve $\mathcal {E}$ with complex multiplication.
Luca Moci +3 more
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Matroid connectivity and singularities of configuration hypersurfaces. [PDF]
Lett Math Phys, 2021 Denham G, Schulze M, Walther U.
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Matroid bases with cardinality constraints on the intersection. [PDF]
Math Program, 2022 Lendl S, Peis B, Timmermans V.
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