Results 171 to 180 of about 36,312 (298)

Torsions of integral homology and cohomology of real Grassmannians [PDF]

open access: yesarXiv, 2017
According to a result of Ehresmann, the torsions of integral homology of real Grassmannian are all of order $2$. In this note, We compute the $\mathbb{Z}_2$-dimensions of torsions in the integral homology and cohomology of real Grassmannian.
arxiv  

Strategy for Non-Orthogonal Multiple Access and Performance in 5G and 6G Networks. [PDF]

open access: yesSensors (Basel), 2023
Al-Dulaimi OMK   +3 more
europepmc   +1 more source

Rank-metric codes as ideals for subspace codes and their weight properties

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
Let q=pr, p a prime, r a positive integer, and Fqthe Galois field with cardinality q and characteristic p. In this paper, we study some weight properties of rank-metric codes and subspace codes. The rank weight is not egalitarian nor homogeneous, and the
Bryan S. Hernandez, Virgilio P. Sison
doaj  

On some invariants of cubic fourfolds. [PDF]

open access: yesEur J Math, 2023
Gounelas F, Kouvidakis A.
europepmc   +1 more source

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