Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Mark Shattuck"'
Publikováno v:
Discrete Mathematics Letters, Vol 13, Pp 100-107 (2024)
Externí odkaz:
https://doaj.org/article/fff67b472c9840b2b43b3ab6968dc850
Autor:
Mark Shattuck
Publikováno v:
Enumerative Combinatorics and Applications, Vol 4, Iss 4, p Article #S2R32 (2024)
Externí odkaz:
https://doaj.org/article/a19ae4323b064f929f39ba02f9bde83f
Autor:
Augustine O. Munagi, Mark Shattuck
Publikováno v:
Discrete Mathematics Letters, Vol 8, Pp 93-99 (2022)
Externí odkaz:
https://doaj.org/article/45ae7adcadd242b5b3b677c519e7a1c8
Autor:
Toufik Mansour, Mark Shattuck
Publikováno v:
Discrete Mathematics Letters, Vol 4, Pp 42-49 (2020)
Externí odkaz:
https://doaj.org/article/d7988380f8d5491089abb4d35f9505be
Autor:
Taras Goy, Mark Shattuck
Publikováno v:
Transactions on Combinatorics, Vol 9, Iss 2, Pp 89-109 (2020)
In this paper, we evaluate determinants of some families of Toeplitz--Hessenberg matrices having tribonacci number entries. These determinant formulas may also be expressed equivalently as identities that involve sums of products of multi
Externí odkaz:
https://doaj.org/article/e0ed76e521eb4a70a893a954e0831e24
Autor:
Toufik Mansour, Mark Shattuck
Publikováno v:
Discrete Mathematics & Theoretical Computer Science, Vol vol. 24, no. 1, Iss Combinatorics (2022)
Let asc and desc denote respectively the statistics recording the number of ascents or descents in a sequence having non-negative integer entries. In a recent paper by Andrews and Chern, it was shown that the distribution of asc on the inversion sequ
Externí odkaz:
https://doaj.org/article/054cb31060ae407b9a261c1de8e11287
Autor:
Mark Shattuck
Publikováno v:
Enumerative Combinatorics and Applications, Vol 2, Iss 2, p Article #S2R12 (2021)
Externí odkaz:
https://doaj.org/article/092824aef01a4d5c9a525d3035012fc8
Autor:
Toufik Mansour, Mark Shattuck
Publikováno v:
Transactions on Combinatorics, Vol 7, Iss 2, Pp 1-16 (2018)
In this paper, we consider statistics on permutations of length $n$ represented geometrically as bargraphs having the same number of horizontal steps. More precisely, we find the joint distribution of the descent and up step stat
Externí odkaz:
https://doaj.org/article/72b51f5910f14a408402cfda19b11afe
Publikováno v:
Discrete Mathematics & Theoretical Computer Science, Vol Vol. 19 no. 1, Iss Combinatorics (2017)
this is the second part of a complete paper in arXiv, see 1605.04969
Externí odkaz:
https://doaj.org/article/a60c9919dd5b468b9436d60abe79963a
Autor:
Toufik Mansour, Mark Shattuck
Publikováno v:
Discrete Mathematics & Theoretical Computer Science, Vol Vol. 17 no.2, Iss Combinatorics (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
Externí odkaz:
https://doaj.org/article/f51dfca405094cfb93877a2314a771ed