Výsledky vyhledávání - "João Carlos da Motta Ferreira"

Mappings preserving sum of products a◊b + b*a (resp., a*◊b + ab*) on ∗-algebras

Autor: Ali Taghavi, João Carlos da Motta Ferreira, Maria das Graças Bruno Marietto

Publikováno v: Proyecciones (Antofagasta). 42:18-31

Let A and B be two prime complex ∗-algebras. We proved that every bijective mapping Φ : A → B satisfying Φ(a ◊+ b∗ a) = Φ(a)◊Φ(b) + Φ(b)∗Φ(a) (resp., Φ(a∗ ◊b + ab∗) = Φ(a)∗ ◊Φ(b) + Φ(a)Φ(b)∗), where a ◊b = ab + ba

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d1b7d769edb58e4fa4436bfd39ccb335
https://doi.org/10.22199/issn.0717-6279-5139

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Nonlinear Maps Preserving a Family of Sum of Triple Products on $$*$$-Algebras

Autor: João Carlos da Motta Ferreira, Maria das Graças Bruno Marietto

Publikováno v: Bulletin of the Iranian Mathematical Society. 48:3687-3699

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::875dfd001306420cb00bde9e7f8c43c2
https://doi.org/10.1007/s41980-022-00713-z

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Mappings Preserving Sum of Products $$a\circ b-ba^{*}$$ on Factor von Neumann Algebras

Autor: João Carlos da Motta Ferreira, Maria das Graças Bruno Marietto

Publikováno v: Bulletin of the Iranian Mathematical Society. 47:679-688

Let $$\mathcal {A}$$ and $$\mathcal {B}$$ be two factor von Neumann algebras. In this paper, we proved that a bijective mapping $$\varPhi :\mathcal {A}\rightarrow \mathcal {B}$$ satisfies $$\varPhi (a\circ b-ba^{*})=\varPhi (a)\circ \varPhi (b)-\varP

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b28c1abdaed4d9e1eae71580e2d609bd
https://doi.org/10.1007/s41980-020-00406-5

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Additivity of Jordan n-tuple maps on rings

Autor: Wagner Tanaka Botelho, João Carlos da Motta Ferreira, Maria das Graças Bruno Marietto

Publikováno v: Boletín de la Sociedad Matemática Mexicana. 26:45-56

Let $$\mathfrak {R}$$ and $$\mathfrak {R}'$$ be rings. We study the additivity of surjective maps $$M:\mathfrak {R}\rightarrow \mathfrak {R}'$$ and $$M^{*}:\mathfrak {R}'\rightarrow \mathfrak {R}$$ preserving a type of Jordan n-tuple product on these

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::913045850423a9df2b77080d06516487
https://doi.org/10.1007/s40590-019-00240-8

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Filled Julia and Mandelbrot sets for dynamics over the quasi-normed real nonassociative algebras. I

Autor: João Carlos da Motta Ferreira, Maria das Graças Bruno Marietto

Publikováno v: Fractals.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c9ac820fc068268ea0b08da3850bcf2
https://doi.org/10.1142/s0218348x20500942

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Sur des anneaux commutatifs à puissances associatives de caractéristique première p > 0

Autor: João Carlos da Motta Ferreira, Artibano Micali

Publikováno v: Nonassociative algebra and its applications

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0fc621849adfcc51fe7ceef7e09ec568
https://doi.org/10.1201/9780429187674-22

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Additivity ofn-Multiplicative Maps on Alternative Rings

Autor: João Carlos da Motta Ferreira, Bruno Leonardo Macedo Ferreira

Publikováno v: Communications in Algebra. 44:1557-1568

Let ℜ and ℜ′ be alternative rings. We study the additivity of n-multiplicative isomorphisms from ℜ onto ℜ′ and of n-multiplicative derivations of ℜ. We prove that, if ℜ contains a family of nontrivial idempotents satisfying Martindale

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6dfd71ed4b7e4d69f0a0923a497b44ba
https://doi.org/10.1080/00927872.2015.1027364

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