Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Kiam Heong Kwa"'
Autor:
Kiam Heong Kwa
Publikováno v:
Linear and Multilinear Algebra. :1-18
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69cf8ee9bcf711088b7bf87d5c5a4f0d
https://doi.org/10.1080/03081087.2022.2160424
https://doi.org/10.1080/03081087.2022.2160424
Autor:
Wai Leong Chooi, Kiam Heong Kwa
Publikováno v:
The Electronic Journal of Linear Algebra. 36:847-856
Let ${\cal U}$ and ${\cal V}$ be linear spaces over fields $\mathbb{F}$ and $\mathbb{K}$, respectively, such that Dim$\,{\cal U}=n\geqslant 2$ and $\left|\mathbb{F}\right|\geqslant 3$. Let $\bigwedge^2{\cal U}$ be the second exterior power of ${\cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45f57cb4fa8ea32b785ca578a8d9b561
https://doi.org/10.13001/ela.2020.5109
https://doi.org/10.13001/ela.2020.5109
Publikováno v:
The Journal of Mathematical Sociology. 45:195-222
Despite a plethora of centrality measures were proposed, there is no consensus on what centrality is exactly due to the shortcomings each measure has. In this manuscript, we propose to combine cent...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75e7906c12089f3652f77fb57d0bf34d
https://doi.org/10.1080/0022250x.2020.1765776
https://doi.org/10.1080/0022250x.2020.1765776
Publikováno v:
Linear Algebra and its Applications. 583:77-101
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58d3b301e81c15e9d4e3d0c805b3bd83
https://doi.org/10.1016/j.laa.2019.08.023
https://doi.org/10.1016/j.laa.2019.08.023
Publikováno v:
Linear and Multilinear Algebra. 68:1021-1030
Let n ⩾ 2 be an integer and let F be a field with F ⩾ 3 . Let T n ( F ) be the ring of n × n upper triangular matrices over F with centre Z . Fixing an integer 2 ⩽ k ⩽ n , we prove that an additive...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::079d75ab69a9471bcc8e6b7276c8a371
https://doi.org/10.1080/03081087.2018.1527281
https://doi.org/10.1080/03081087.2018.1527281
Autor:
Kiam Heong Kwa, Wai Leong Chooi
Publikováno v:
Linear and Multilinear Algebra. 68:869-885
Let Ψ : ⨂ i = 1 d H n i → ⨂ i = 1 d H n i be a linear map on the Kronecker product of spaces of Hermitian matrices H n i of size n i ≥ 3 . (If d=1, we identify ⨂ i = 1 d H n i with H n 1 .) We esta...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49834e7b8ba4b1f07f4667a62b5fb241
https://doi.org/10.1080/03081087.2018.1519010
https://doi.org/10.1080/03081087.2018.1519010
Autor:
Wai Leong Chooi, Kiam Heong Kwa
Publikováno v:
Linear and Multilinear Algebra. 67:1269-1293
Let F and K be fields and let n be a positive integer. Let U and V be linear spaces over F such that n=dimU⩽dimV and let W and Z be linear spaces over K . Let U⨂V be the tensor product of U...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7041fd61186e6660e15e53f652405ac3
https://doi.org/10.1080/03081087.2018.1451477
https://doi.org/10.1080/03081087.2018.1451477
Publikováno v:
Linear Algebra and its Applications. 516:24-46
In 1940s, Hua established the fundamental theorem of geometry of rectangular matrices which describes the general form of coherence invariant bijective maps on the space of all matrices of a given size. In 1955, Jacob generalized Hua's theorem to tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ff2f7e5e1d8e79042a5a484009289f2
https://doi.org/10.1016/j.laa.2016.11.023
https://doi.org/10.1016/j.laa.2016.11.023
Publikováno v:
Applied Mathematics and Computation. 395:125870
Centrality measures play a vital role in network analysis by which important nodes within a network are identified from structural perspectives. In this study, we applied three fundamental centrality measures (degree, closeness, and betweenness) to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c8b15253d43d2f2dd0ff4e2ddd39582
https://doi.org/10.1016/j.amc.2020.125870
https://doi.org/10.1016/j.amc.2020.125870
Publikováno v:
Linear and Multilinear Algebra. 64:745-766
Let be the algebra of matrices over a field with at least three elements. Inspired by linear preserver problems related to quantum information science, we characterize classical adjoint commuting linear maps, i.e. linear maps such thatwith , that pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab756d8d25690b31a0efc9cef466d0d2
https://doi.org/10.1080/03081087.2015.1120703
https://doi.org/10.1080/03081087.2015.1120703