Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Ahmed, Umer"'
We introduce the notion of lattice path matroidal subdivisions, or LPM subdivisions for short, and show that these subdivisions are regular and hence the weight vectors for them lie in the Dressian. This leads us to explore the structure of the set o
Externí odkaz:
http://arxiv.org/abs/2307.04180
Publikováno v:
Sci, Vol 6, Iss 3, p 51 (2024)
Cloud manufacturing allows multiple manufacturers to contribute their manufacturing facilities and assets for monitoring, operating, and controlling common processes of manufacturing and services controlled through cloud computing. The modern framewo
Externí odkaz:
https://doaj.org/article/0a458c7321394b29b4fa708a7df3b9e9
Autor:
Ashraf, Ahmed Umer, Backman, Spencer
Lop\'ez de Medrano-Rin\'con-Shaw defined Chern-Schwartz-MacPherson cycles for an arbitrary matroid $M$ and proved by an inductive geometric argument that the unsigned degrees of these cycles agree with the coefficients of $T(M;x,0)$, where $T(M;x,y)$
Externí odkaz:
http://arxiv.org/abs/2007.10278
Publikováno v:
Frontiers in Blockchain, Vol 6 (2023)
Provenance blockchain is an evolving concept for protection of production, logistics, and supply chain networks from rogue Industrial Internet of Things (IIoT) devices. Such rogue IIoT devices are a recognized threat in the cloud manufacturing networ
Externí odkaz:
https://doaj.org/article/cf542d98a35841388f78e01c28903770
Publikováno v:
Advances in Applied Mathematics, 120 (2020)
Let $\mathcal{A}$ be a Weyl arrangement. We introduce and study the notion of $\mathcal{A}$-Eulerian polynomial producing an Eulerian-like polynomial for any subarrangement of $\mathcal{A}$. This polynomial together with shift operator describe how t
Externí odkaz:
http://arxiv.org/abs/1911.01650
Autor:
Ashraf, Ahmed Umer
Representation theory of the symmetric group $\mathfrak{S}_n$ has a very distinctive combinatorial flavor. The conjugacy classes as well as the irreducible characters are indexed by integer partitions $\lambda \vdash n$. We introduce class functions
Externí odkaz:
http://arxiv.org/abs/1812.09377
Autor:
Ashraf, Ahmed Umer
We present a new algorithm for computing the volume of an arbitrary matroid base polytope. We provide two applications of this approach: a relation between the volume of the base polytope of a matroid $\M$ and its relaxation $\M'$, and a formula for
Externí odkaz:
http://arxiv.org/abs/1812.09373
Akademický článek
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Autor:
Sultanpuram, Nikhila Reddy, Ahmed, Umer, Peters, Jonathan Thomas, Zhang, Tian, Wang, Andrew Z.
Publikováno v:
In Acta Biomaterialia November 2022 153:299-307
Microcephaly with altered cortical layering in GIT1 deficiency revealed by quantitative neuroimaging
Autor:
Badea, Alexandra, Schmalzigaug, Robert, Kim, Woojoo, Bonner, Pamela, Ahmed, Umer, Johnson, G. Allan, Cofer, Gary, Foster, Mark, Anderson, Robert J., Badea, Cristian, Premont, Richard T.
Publikováno v:
In Magnetic Resonance Imaging February 2021 76:26-38