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Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg - 相似文献
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We construct an associative product on the symmetric module of any pre-Lie algebra L. It turns into a Hopf algebra which is isomorphic to the envelopping algebra of . Then we prove that in the case of rooted trees our construction is dual to that of Connes and Kreimer. We also show that symmetric brace algebras and pre-Lie algebras are the same. Finally, we give a similar interpretation of the Hopf algebra of planar rooted trees. To cite this article: J.-M. Oudom, D. Guin, C. R. Acad. Sci. Paris, Ser. I 340 (2005). 相似文献
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《Comptes Rendus de l'Academie des Sciences Series IIA Earth and Planetary Science》1997,324(3):293-295
We show that the C* -algebra of the regular representation of a discrete group G onto a subset Σ of G is the reduced C* -algebra of an r-discrete groupoid whose space of units is totally disconnected and contains Σ as a dense subset. The C*-algebra of quasicrystals, some Cuntz-Krieger and crossed product algebras, and Wiener-Hopf algebras are particular cases of this construction 相似文献
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Vincent Beck 《Comptes Rendus Mathematique》2006,342(10):727-732
Let G be a complex reflection group acting on V, M be a finite dimensional G-module and S be the coordinate ring of V. Generalizing results of Orlik and Solomon, and of Shepler, we build an exterior algebra structure on the set of relative invariants (associated to a linear character of G) of the algebra . To cite this article: V. Beck, C. R. Acad. Sci. Paris, Ser. I 342 (2006). 相似文献
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Cristián Mallol 《代数通讯》2013,41(12):4149-4157
Dans ce travail nous analysons ia structure d’une algèbre, sous la condition d’existence d’un espace, suffisamment grand, de dé qui inversent la décomposition de Peirce. 相似文献
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Annali di Matematica Pura ed Applicata (1858-1865) - 相似文献
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G. Mittag-Leffler 《Acta Mathematica》1900,23(1):43-62
Sans résumé
La présente note est un extrait des différentes communications qui ont été faites à l’Académie des sciences de Stockholm dans
le courant de l’année 1898, et qui ont été publiées sous les titres suivants:Om en generalisering af potensserien (9 Mars 1898).Om den analytiska framst?llningen af en allm?n monogen funktion: F?rsta meddelande (11 Maj 1898); Andra meddelande (11 Maj 1898); Tredje meddelande (14 Sept. 1898). 相似文献
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O. H. Cheikh 《Rendiconti del Circolo Matematico di Palermo》2000,49(2):307-312
In a locallyA-convex algebra (E, τ) we consider the associatedm-convex topologym(τ). We show that the completion ofE with respect tom(τ) is always a locallyA-convex algebra contained in the complete locally convex space obtained from (E, τ). The topologym(τ) is also used to characterize locally boundedly multiplicatively convex algebras among locallyA-convex ones.
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Rendiconti del Circolo Matematico di Palermo Series 1 - 相似文献
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We study train algebras of fourth degree, give some genetic examples and explicit the plenary train identities associated. These algebras fall ultimately into four classes; the first two of them do not have 1/2 as train root and thus have idempotents. For these types we provide structure theorems, which are then used for classification purposes in small dimensions. 相似文献
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R. Choukri A. El Kinani M. Oudadess 《Rendiconti del Circolo Matematico di Palermo》2000,49(3):497-500
One of our main results is a theorem on the existence of a left unit in Banach algebras. As a consequence, we obtain a non-commutative version of a result due to Dixon. 相似文献