Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Mohamed Belhaj"'
Publikováno v:
Nuclear Fusion, Vol 63, Iss 12, p 126054 (2023)
During the plasma experimental campaigns performed on the tokamak WEST, a performance-limiting observation has been made on the Ion Cyclotron Resonance Heating (ICRH) system composed of three identical antennas. When only one antenna is powered while
Externí odkaz:
https://doaj.org/article/2d2d133ae9fd4d7eba67b5d0db5cde13
Autor:
Mohamed, Mohamed Belhaj
Publikováno v:
journal of algebra and its applications (2019)
We study the pre-Lie algebra of rooted trees $(\Cal T, \rightarrow)$ and we define a pre-Lie structure on its doubling space $(V, \leadsto)$. Also, we find the enveloping algebras of the two pre-Lie algebras denoted respectively by $(\Cal H', \star,
Externí odkaz:
http://arxiv.org/abs/1912.05787
Autor:
Mohamed, Mohamed Belhaj
We study the pre-Lie algebra of specified Feynman graphs $\wt{V}_{\Cal T}$ and we define a pre-Lie structure on its doubling space $\wt{\Cal F}_{\Cal T}$. We prove that $\wt{\Cal F}_{\Cal T}$ is pre-Lie module on $\wt{V}_{\Cal T}$ and we find some re
Externí odkaz:
http://arxiv.org/abs/1812.03791
In this article, we study the shuffle quadri-algebra H. We prove the existence of some relations between quadri-algebra laws which constitute shuffle product, the concatenation product and the deconcatenation coproduct. We also show that the underlyi
Externí odkaz:
http://arxiv.org/abs/1707.03766
Autor:
Mohamed, Mohamed Belhaj
In this article, we define a doubling procedure for the bialgebra of specified Feynman graphs introduced in a previous paper \cite {DMB}. This is the vector space generated by the pairs $(\bar \Gamma, \bar \gamma)$ where $\bar \Gamma$ is a locally $1
Externí odkaz:
http://arxiv.org/abs/1605.04322
The vector space spanned by rooted forests admits two graded bialgebra structures. The first is defined by A. Connes and D. Kreimer using admissible cuts, and the second is defined by D. Calaque, K. Ebrahimi-Fard and the second author using contracti
Externí odkaz:
http://arxiv.org/abs/1605.03421
Akademický článek
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We construct a Hopf algebra structure on the space of specified Feynman graphs of a quantum field theory. We introduce a convolution product and a semigroup of characters of this Hopf algebra with values in some suitable commutative algebra taking mo
Externí odkaz:
http://arxiv.org/abs/1306.4197
Publikováno v:
Games and Economic Behavior
Games and Economic Behavior, 2023, 140, pp.154-172. ⟨10.1016/j.geb.2023.03.003⟩
Games and Economic Behavior, 2023, 140, pp.154-172. ⟨10.1016/j.geb.2023.03.003⟩
International audience; We consider agents organized in an undirected network of local complementarities. A principal with a fixed budget offers costly bilateral contracts in order to increase the sum of agents' effort. We study contracts rewarding e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ed7220e96fd15f9dda54518ce1f0587
https://doi.org/10.1016/j.geb.2023.03.003
https://doi.org/10.1016/j.geb.2023.03.003
Autor:
Mohamed, Mohamed Belhaj
We consider two interacting connected graded Hopf algebras, the former being a comodule-coalgebra on the latter. We show how to define analogues of Connes-Kreimer's renormalization group and Beta function, when the graduation operator is replaced by
Externí odkaz:
http://arxiv.org/abs/1207.1482