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Cut-and-join operators in cohomological field theory and topological recursion
We construct a cubic cut-and-join operator description for the partition function of the Chekhov–Eynard–Orantin topological recursion for a local...
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A class of join-completions of partially ordered semigroups
We introduce the notions of the join-completions of a partially ordered semigroup S and the weakly consistent nuclei on the power-set
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On the distance spectra of central vertex join and central edge join of two regular graphs
In this article, we compute the distance, distance Laplacian, and distance signless Laplacian eigenvalues of central vertex and central edge join of...
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Length-preserving Extensions of a Semimodular Lattice by Lowering a Join-irreducible Element
We extend the bijective correspondence between finite semimodular lattices and Faigle geometries to an analogous correspondence between semimodular...
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Weighted Join Operators on Directed Trees
A rooted directed tree \({\mathscr {T}}=(V, E)\) with root...
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Conjunctive join-semilattices
A join-semilattice L with top is said to be conjunctive if every principal ideal is an intersection of maximal ideals. (This is equivalent to a...
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The non-preemptive ‘Join the Shortest Queue–Serve the Longest Queue’ service system with or without switch-over times
A 2-queue system with a single-server operating according to the combined ‘Join the Shortest Queue–Serve the Longest Queue’ regime is analyzed. Both...
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The Ihara-Zeta Function and the Spectrum of the Join of Two Semi-Regular Bipartite Graphs
In this paper, using matrix techniques, we compute the Ihara-zeta function and the number of spanning trees of the join of two semi-regular bipartite...
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Geodesic transversal problem for join and lexicographic product of graphs
A set S of vertices of a graph G is a geodesic transversal of G if every maximal geodesic of G contains at least one vertex of S . The minimum...
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Interpretation of Skew Ideals with Relators in Join Skew Semilattice
Distributive semilattices must be the foundation of algebraic subjects related to nonclassical logic. An ideal topic for reviewing the order...
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Approximations for a Queueing Game Model with Join-the-Shortest-Queue Strategy
This paper investigates a partially observable queueing system with N nodes in which each node has a dedicated arrival stream. There is an extra...
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Commutative Unary Algebras with Join-Semidistributive Topology Lattices
AbstractIn this paper, it is proved that a commutative unary algebra with join-semidistributive topology lattice either is two-element or any two...
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Spectra of partitioned matrices and the \({\mathcal {M}}\)-join of graphs
In this paper, first we consider some partitioned matrices having some special kind of blocks, and we obtain their eigenvalues and eigenvectors. From...
