Results 91 to 100 of about 21,091,768 (168)
Going down in (semi)lattices of finite Moore families and convex geometries [PDF]
In this paper we first study the changes occuring in the posets of irreducible elements when one goes from an arbitrary Moore family (respectively, a convex geometry) to one of its lower covers in the lattice of all Moore families (respectively, in the ...
Gabriela Bordalo +2 more
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On homological classification of pomonoids by GP-po-flatness of S-posets
Open Mathematics, 2016 In this paper, we introduce GP-po-flatness property of S-posets over a pomonoid S, which lies strictly between principal weak po-flatness and po-torsion freeness.
Liang Xingliang +2 more
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On (po-)torsion free and principally weakly (po-)flat $S$-posets [PDF]
Categories and General Algebraic Structures with Applications, 2018 In this paper, we first consider (po-)torsion free and principally weakly (po-)flat $S$-posets, specifically we discuss when (po-)torsion freeness implies principal weak (po-)flatness.
Roghaieh Khosravi, Xingliang Liang
doaj
On Concept Lattices for Numberings
Tsinghua Science and TechnologyThe theory of numberings studies uniform computations for families of mathematical objects. In this area, computability-theoretic properties of at most countable families of sets S are typically classified via the corresponding Rogers upper semilattices.
Nikolay Bazhenov +2 more
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Maximum distance separable poset codes
, 2018 We derive the Singleton bound for poset codes and define the MDS poset codes as linear codes which attain the Singleton bound. In this paper, we study the basic properties of MDS poset codes.
Kim, HK, Hyun, JY
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A poset structure on row convex permutominides
, 2008 We study the poset structure on row-convex permutominides induced by the Bruhat order on permutations of given ...
DISANTO, FILIPPO +3 more
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The immersion poset on partitions
: We introduce the immersion poset $$({\mathcal {P}}(n), \leqslant _I)$$ ( P (
Johnston, Lisa +6 more
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Posets of h-vectors of standard determinantal schemes
Le Matematiche, 2015 We study the combinatorial structure of the poset H consisting of h-vectors of length s of codimension c standard determinantal schemes, defined by the maximal minors of a t × (t + c − 1) homogeneous, polynomial matrix.
Matey Mateev
doaj
On Some General Tornheim-Type Series
MathematicsIn this paper, we solve the open problem posed by Kuba by expressing ∑j,k≥1Hk(u)Hj(v)Hj+k(w)jrks(j+k)t as a linear combination of multiple zeta values. These sums include Tornheim’s double series as a special case.
Kwang-Wu Chen
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The Combinatorics of Poset Associahedra [PDF]
In this dissertation, we study poset associahedra and the combinatorics surrounding them. We provide a simple realization of poset associahedra and affine poset cyclohedra.
Sack, Andrew Ian
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