Results 51 to 60 of about 183,560 (141)
Shift Equivalence in the Generalized Factor Order [PDF]
, 2018 We provide a geometric condition that guarantees strong Wilf equivalence in the generalized factor order. This provides a powerful tool for proving specific and general Wilf equivalence results, and several such examples are ...
Glasscock, Daniel +4 more
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Image library: Physalis infinemundi Wilf
, 2017 Full-resolution image library of the fossil Solanaceae fruit Physalis infinemundi Wilf, published: Wilf P, MR Carvalho, MA Gandolfo, NR Cúneo. 2017. Eocene lantern fruits from Gondwanan Patagonia and the early origins of Solanaceae. Science, v.
Peter Wilf (523632)
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Palaeontology, Volume 69, Issue 3, 2026.Abstract Lauraceae are a tropical–subtropical angiosperm family that exhibit significant diversity and a rich fossil record, primarily of leaves found worldwide from the Cretaceous to the present. However, the taxonomic placement of many fossil leaves remains uncertain because of morphological convergence and limited variation in leaf characters among ...
Marco A. Rubalcava‐Knoth +3 more
wiley +1 more source
Journal of Engineering Education, Volume 115, Issue 2, April 2026.Abstract Background The complexities of Latino/a/e/x racial identity remain underexplored in the context of engineering education. Here, we examine the experiences of five Latinas with engineering aspirations, focusing on how they understand their racialized identities and racial inequity in STEM.
Summer Blanco +2 more
wiley +1 more source
For an inviting anthropology Pour une anthropologie accueillante
Journal of the Royal Anthropological Institute, Volume 32, Issue 1, Page 7-26, March 2026.Anthropologists have recently become inspired, captivated even, by the practices of the arts, design, and architecture in efforts to renew anthropology's modes of engagement and understandings of its relevance, particularly affecting how we approach ethnographic fieldwork.
Tomás Criado +2 more
wiley +1 more source
A refinement of Wilf-equivalence for patterns of length 4
Journal of Combinatorial Theory, Series A, 2014 In their paper \cite{DokosDwyer:Permutat12}, Dokos et al. conjecture that the major index statistic is equidistributed among 1423-avoiding, 2413-avoiding, and 2314-avoiding permutations. In this paper we confirm this conjecture by constructing two major index preserving bijections, $Θ:S_n(1423)\to S_n(2413)$ and $Ω:S_n(2314)\to S_n(2413)$.
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Constraining strong c-Wilf equivalence using cluster poset asymptotics
Advances in Applied Mathematics, 2019 Let $π\in \mathfrak{S}_m$ and $σ\in \mathfrak{S}_n$ be permutations. An occurrence of $π$ in $σ$ as a consecutive pattern is a subsequence $σ_i σ_{i+1} \cdots σ_{i+m-1}$ of $σ$ with the same order relations as $π$. We say that patterns $π, τ\in \mathfrak{S}_m$ are strongly c-Wilf equivalent if for all $n$ and $k$, the number of permutations in ...
Mitchell Lee, Ashwin Sah
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Enumeration and Wilf-classification of permutations avoiding five patterns of length 4 [PDF]
Contributions to Mathematics, 2020 Toufik Mansour
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, 2021 Two permutation classes, the X-class and subpermutations of the increasing oscillation are shown to exhibit an exponential Wilf-collapse. This means that the number of distinct enumerations of principal subclasses of each of these classes grows much more
Jelínek, Vít +5 more
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