Results 161 to 170 of about 46,626 (239)
Computing and Combinatorics [PDF]
Algorithmica, 2016 Zhipeng Cai 0001, Alexander Zelikovsky
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The combinatorics of Motzkin polyominoes
Discrete Applied MathematicsA word $w=w_1\cdots w_n$ over the set of positive integers is a Motzkin word whenever $w_1=\texttt{1}$, $1\leq w_k\leq w_{k-1}+1$, and $w_{k-1}\neq w_{k}$ for $k=2, \dots, n$. It can be associated to a $n$-column Motzkin polyomino whose $i$-th column contains $w_i$ cells, and all columns are bottom-justified.
Baril, Jean-Luc +3 more
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Generalized noncrossing partitions and combinatorics of Coxeter groups
, 2006 This thesis serves two purposes: it is a comprehensive introduction to the ``Catalan combinatorics'' of finite Coxeter groups, suitable for nonexperts, and it also introduces and studies a new generalization of the poset of noncrossing partitions.
Armstrong, Drew Douglas +1 more
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Skew Schur Function Representation of Directed Paths in a Slit [PDF]
, 2020 19 pages, 5 figures, accepted version (Journal of Combinatorics)19 pages, 5 figures, accepted version (Journal of Combinatorics)19 pages, 5 figures, accepted version (Journal of Combinatorics)19 pages, 5 figures, accepted version (Journal of ...
Prellberg, T, Khalid, A
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Combinatorics of lopsided sets
, 2019 We develop a theory of isometric subgraphs of hypercubes for which a certain inheritance of isometry plays a crucial role. It is well known that median graphs and closely related graphs embedded in hypercubes bear geometric features that involve ...
Bandelt, HJ +3 more
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Seniority‐Zero Quadratic Canonical Transformation Theory
International Journal of Quantum Chemistry, Volume 126, Issue 12, June 15, 2026.We construct a unitary transformation of electronic Hamiltonians using quadratic canonical transformation theory, choosing the transformation to minimize the non‐seniority‐zero elements of the transformed Hamiltonian. This allows us to add dynamic correlation to the static correlation inherent in orbital‐optimized doubly‐occupied (seniority‐zero ...
Daniel F. Calero‐Osorio, Paul W. Ayers
wiley +1 more source
Combinatorics And The Development Of Children's Combinatorial Reasoning
, 2005 This chapter begins by exploring some elementary ideas of combinatorics and how they support children’s development of beginning probability ideas and problem-solving skills.
English, Lyn D.
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International Journal of Applied Psychoanalytic Studies, Volume 23, Issue 2, June 2026.ABSTRACT This article offers a theoretical analysis, grounded in a critical narrative review within the Freudian‐Lacanian tradition, of how platform algorithms shape contemporary forms of subjectivity and raise new questions for psychoanalytic practice.
Mariana Salles Kehl, Heloisa Caldas
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The Electronic Journal of Combinatorics
This free electronic journal focuses on current research in combinatorics. The material included in the journal is quite substantial; over 20 papers from mathematicians around the world comprise the latest volume.
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Properly Colored Cycles in Edge‐Colored Balanced Bipartite Graphs
Journal of Graph Theory, Volume 112, Issue 2, Page 37-53, June 2026.ABSTRACT Let G n , n c denote a (not necessarily properly) edge‐colored balanced bipartite graph on 2 n vertices, that is, in which every edge is assigned a color. A cycle C in G n , n c is called properly colored if any two consecutive edges of C have distinct colors.
Tingting Han +3 more
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