Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
wiley +2 more sources
On refinements of wilf-equivalence for involutions
Journal of Algebraic Combinatorics, 2023 Let $\mathcal{S}_n(π)$ (resp. $\mathcal{I}_n(π)$ and $\mathcal{AI}_n(π)$) denote the set of permutations (resp. involutions and alternating involutions) of length $n$ which avoid the permutation pattern $π$. For $k,m\geq 1$, Backelin-West-Xin proved that $|\mathcal{S}_n(12\cdots kτ)|= |\mathcal{S}_n(k\cdots 21τ)|$ by establishing a bijection between ...
Sherry H. F. Yan +2 more
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Consecutive Patterns in Inversion Sequences [PDF]
Discrete Mathematics & Theoretical Computer Science, 2019 An inversion sequence of length $n$ is an integer sequence $e=e_{1}e_{2}\dots e_{n}$ such that $0\leq e_{i}
Juan S. Auli, Sergi Elizalde
doaj +1 more source
Two examples of unbalanced Wilf-equivalence [PDF]
Journal of Combinatorics, 2015 10 pages, minor revision, to appear in Journal of ...
Burstein, Alexander, Pantone, Jay
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Pattern avoidance for set partitions \`a la Klazar [PDF]
Discrete Mathematics & Theoretical Computer Science, 2016 In 2000 Klazar introduced a new notion of pattern avoidance in the context of set partitions of $[n]=\{1,\ldots, n\}$. The purpose of the present paper is to undertake a study of the concept of Wilf-equivalence based on Klazar's notion.
Jonathan Bloom, Dan Saracino
doaj +1 more source
Discrete Mathematics & Theoretical Computer Science, 2019 Two permutations in a class are Wilf-equivalent if, for every size, $n$, the number of permutations in the class of size $n$ containing each of them is the same.
Michael Albert, Jinge Li
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A New Class of Wilf-Equivalent Permutations [PDF]
Journal of Algebraic Combinatorics, 2002 20 pages, 14 figures, corrected ...
Stankova, Zvezdelina, West, Julian
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On avoidance of patterns of the form σ-τ by words over a finite alphabet [PDF]
Discrete Mathematics & Theoretical Computer Science, 2015 Vincular or dashed patterns resemble classical patterns except that some of the letters within an occurrence are required to be adjacent. We prove several infinite families of Wilf-equivalences for $k$-ary words involving vincular patterns containing a ...
Toufik Mansour, Mark Shattuck
doaj +1 more source
Refined Wilf-equivalences by Comtet statistics
Electronic Research Archive, 2021 <p style='text-indent:20px;'>We launch a systematic study of the refined Wilf-equivalences by the statistics <inline-formula><tex-math id="M1">$ {\mathsf{comp}} $</tex-math></inline-formula> and <inline-formula><tex-math id="M2">$ {\mathsf{iar}} $</tex-math></inline-formula>, where <inline ...
Fu, Shishuo, Lin, Zhicong, Wang, Yaling
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Wilf equivalences between vincular patterns in inversion sequences [PDF]
Applied Mathematics and Computation, 2021 18 pages, 9 ...
Auli, Juan S., Elizalde, Sergi
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