On sums of range symmetric matrices in Minkowski space.
Meenakshi, Ar., Krishnaswamy, D. (2002)
Bulletin of the Malaysian Mathematical Sciences Society. Second Series
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Meenakshi, Ar., Krishnaswamy, D. (2002)
Bulletin of the Malaysian Mathematical Sciences Society. Second Series
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Meenakshi, A.R. (2000)
Bulletin of the Malaysian Mathematical Sciences Society. Second Series
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Gašper Zadnik (2014)
Colloquium Mathematicae
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We classify the isometries in the non-identity component of the whole isometry group of the symmetric space of positive 3 × 3 matrices of determinant 1: we determine the translation lengths, minimal spaces and fixed points at infinity.
Hershkowitz, Daniel, Keller, Nathan (2005)
ELA. The Electronic Journal of Linear Algebra [electronic only]
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Teresa Riera (1978)
Stochastica
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In finite sets with n elements, every similarity relation (or fuzzy equivalence) can be represented by an n x n-matrix S = (s), s ∈ [0,1], such that s = 1 (1 ≤ i ≤ n), s = s for any i,j and S o S = S, where o denotes the max-min product of matrices. These matrices represent also dendograms and sets of closed balls of a finite ultrametric space (vid. [1], [2], [3]).
Xiquan Liang, Tao Wang (2012)
Formalized Mathematics
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This article describes definitions of subsymmetric matrix, anti-subsymmetric matrix, central symmetric matrix, symmetry circulant matrix and their basic properties.
Yang, Shang-Jun, Xu, Chang-Qing, Li, Xiao-Xin (2010)
Journal of Inequalities and Applications [electronic only]
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N. A. Balonin, D. Ž. Ðokovic, D. A. Karbovskiy (2018)
Special Matrices
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We continue our systematic search for symmetric Hadamard matrices based on the so called propus construction. In a previous paper this search covered the orders 4v with odd v ≤ 41. In this paper we cover the cases v = 43, 45, 47, 49, 51. The odd integers v < 120 for which no symmetric Hadamard matrices of order 4v are known are the following: 47, 59, 65, 67, 73, 81, 89, 93, 101, 103, 107, 109, 113, 119. By using the propus construction, we found several symmetric Hadamard matrices...
Utz, W.R. (1959)
Portugaliae mathematica
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Pedro Miranda, Michel Grabisch (2004)
Kybernetika
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Bi-capacities have been recently introduced as a natural generalization of capacities (or fuzzy measures) when the underlying scale is bipolar. They allow to build more flexible models in decision making, although their complexity is of order , instead of for fuzzy measures. In order to reduce the complexity, the paper proposes the notion of -symmetric bi- capacities, in the same spirit as for -symmetric fuzzy measures. The main idea is to partition the set of criteria (or states...
B.N. Parlett, W.-D. Wu (1984)
Numerische Mathematik
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