Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Jean Venato-Santos"'
Publikováno v:
CQD Revista Eletrônica Paulista de Matemática, Vol 2, Iss 1 (2022)
O trabalho proposto trata-se de uma manipula¸c˜ao matem´atica baseada em conceitos f´ısicos, com o objetivo de descrever o problema de estabilidade de um controlador autom´atico de uma m´aquina a vapor.
Externí odkaz:
https://doaj.org/article/d3dd28214abc4042b4f892b9f7d2e333
Publikováno v:
CQD Revista Eletrônica Paulista de Matemática, Vol 15 IC, Pp 41-55 (2019)
Externí odkaz:
https://doaj.org/article/43856e01dca34a79a10f519e4ff3f077
Publikováno v:
Proceedings of the American Mathematical Society. 150:1795-1798
We construct a non-injective analytic local diffeomorphism of R 3 \mathbb {R}^3 such that the pre-image of every affine hyperplane is connected. This disproves a conjecture proposed by S. Nollet and F. Xavier in 2002.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25c4fda51cf0e1e40cc992c231248b64
https://doi.org/10.1090/proc/14779
https://doi.org/10.1090/proc/14779
Publikováno v:
REVISTA FOCO. 16:e1768
O Teorema de Sharkovskii diz, em particular, que se uma função contínua possui um ponto periódico de período 3, então possui pontos periódicos de qualquer período. Neste trabalho apresentamos uma demonstração deste teorema.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bca79bce6603cfcbe28caf49a82e30bb
https://doi.org/10.54751/revistafoco.v16n5-026
https://doi.org/10.54751/revistafoco.v16n5-026
Publikováno v:
CQD Revista Eletrônica Paulista de Matemática, Vol 2, Iss 1, Pp 23-31 (2013)
Externí odkaz:
https://doaj.org/article/25d287b72d434bb3be8326afc25ef2aa
Publikováno v:
Proceedings of the Edinburgh Mathematical Society. 63:666-675
We obtain a new theorem for the non-properness set $S_f$ of a non-singular polynomial mapping $f:\mathbb C^n \to \mathbb C^n$. In particular, our result shows that if f is a counterexample to the Jacobian conjecture, then $S_f\cap Z \neq \emptyset $,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81eab5969f49df1b89df1346695675a8
https://doi.org/10.1017/s0013091520000061
https://doi.org/10.1017/s0013091520000061
Publikováno v:
CQD Revista Eletrônica Paulista de Matemática, Vol 15 IC, Pp 41-55 (2019)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2445deebea21cd9a3a9f82bb1cdf51de
https://www.fc.unesp.br/Home/Departamentos/Matematica/revistacqd2228/v15a04ic-invertibilidade-global-e-equilibrio.pdf
https://www.fc.unesp.br/Home/Departamentos/Matematica/revistacqd2228/v15a04ic-invertibilidade-global-e-equilibrio.pdf
Publikováno v:
Topology and its Applications. 235:22-34
Given X a path connected space and g : X → R a local fibration on its image, we prove that g satisfies a kind of deformation and consequently we obtain the path connectedness of its level sets. Then we provide global injectivity and invertibility t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4205d0cc8aae718ab304d00d9556672
https://doi.org/10.1016/j.topol.2017.12.001
https://doi.org/10.1016/j.topol.2017.12.001
Autor:
Jean Venato-Santos, Francisco Braun
Publikováno v:
Publicacions Matemàtiques; 2014: Vol. Extra: New Trends in Dynamical Systems (Salou, 2012); p. 63-79
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Publ. Mat. 58 (2014), 63-79
Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Publ. Mat. 58 (2014), 63-79
Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Let $F=(F_1,F_2,F_3)\colon\mathbb{R}^3\to\mathbb{R}^3$ be a $C^\infty$ local diffeomorphism. We prove that each of the following conditions are sufficient to the global injectivity of $F$: ¶ A) The foliations $\mathcal{F}_{F_i}$ made up by the conne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::651e7703bb8cc1960b0695fa78f3e66b
https://doi.org/10.5565/publmat_extra14_04
https://doi.org/10.5565/publmat_extra14_04
Autor:
Carlos Maquera, Jean Venato-Santos
Publikováno v:
Bulletin of the Brazilian Mathematical Society, New Series. 44:273-284
Let F: ℝ n → ℝ n be a polynomial local diffeomorphism and let S F denote the set of not proper points of F. The Jelonek’s real Jacobian Conjecture states that if codim(S F ) ≥ 2, then F is bijective. We prove a weak version of such conjectu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac9c84e45d6b92b42d459dfa037659ec
https://doi.org/10.1007/s00574-013-0013-y
https://doi.org/10.1007/s00574-013-0013-y