Zobrazeno 1 - 10
of 12
pro vyhledávání: '"segunda forma fundamental"'
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 76, Iss 1, Pp 1-7 (2004)
In this paper we prove a tangency principle (see Fontenele and Silva 2001) related with the length of the second fundamental form, for hypersurfaces of an arbitrary ambient space. As geometric applications, we make radius estimates of the balls that
Externí odkaz:
https://doaj.org/article/97d5fb33215f41068e5f55a75a3d92b3
Autor:
Santos, Thaynara Cecilia
Publikováno v:
Repositório Institucional da UFALUniversidade Federal de AlagoasUFAL.
In this dissertation, we study a characterization of the flat equatorial disk and the critical catenoid in the unitary ball B3 of R3 in terms of its second fundamental form. The work developed here is based on the article “A gap theorem for free bo
Externí odkaz:
http://www.repositorio.ufal.br/handle/riufal/3543
Publikováno v:
DIGITUM. Depósito Digital Institucional de la Universidad de Murcia
instname
TDR (Tesis Doctorales en Red)
instname
TDR (Tesis Doctorales en Red)
El objetivo principal de este trabajo es presentar la evolución del principio del máximo y algunas aplicaciones de él a problemas geométricos. En este sentido, estudiamos el comportamiento de la curvatura escalar S de hipersuperficies de curvatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6d471ecbc8847cf73fdc46e6a8939cd4
http://hdl.handle.net/10201/28767
http://hdl.handle.net/10201/28767
Publikováno v:
Repositorio Digital Univalle
Universidad del Valle
instacron:Universidad del Valle
Universidad del Valle
instacron:Universidad del Valle
Sea M un elipsoide en Rn;n ≥ 3, si la segunda forma fundamental π satisface π (v,v) ≥ k/v/2 sobre 9M, k > 0, entonces el primer valor propio de Steklov v1(M) satisface la desigualdad v1(M) ≥ k. La igualdad se obtiene si y solo si M es la bola
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::05c2c12ff8103d8584a932ccf444b6ab
Publikováno v:
Revista de Ciencias, Volume: 20, Issue: 2, Pages: 55-61, Published: DEC 2016
Resumen Sea M un elipsoide en ℝ n ; n ≥ 3, si la segunda forma fundamental π satisface π(υ,υ) ≥ k |ʋ|2 sobre ∂M, k > 0, entonces el primer valor propio de Steklov ν 1(M) satisface la desigualdad ν 1(M) ≥ k. La igualdad se obtiene si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______618::cda216e4cfa1e02645147a4862cc5649
http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0121-19352016000200055&lng=en&tlng=en
http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0121-19352016000200055&lng=en&tlng=en
Autor:
Silva, Paulo do Nascimento
Publikováno v:
Biblioteca Digital de Teses e Dissertações da UFPBUniversidade Federal da ParaíbaUFPB.
Made available in DSpace on 2015-05-15T11:46:22Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1908357 bytes, checksum: 3762912e093a6400855708f530b6cd4d (MD5) Previous issue date: 2013-05-28
Coordenação de Aperfeiçoamento de Pessoal de Nível
Coordenação de Aperfeiçoamento de Pessoal de Nível
Externí odkaz:
http://tede.biblioteca.ufpb.br:8080/handle/tede/7447
Autor:
Silva, Paulo do Nascimento
Publikováno v:
Biblioteca Digital de Teses e Dissertações da UFPB
Universidade Federal da Paraíba (UFPB)
instacron:UFPB
Universidade Federal da Paraíba (UFPB)
instacron:UFPB
We study the geometry of surfaces immersed in R4 through the singularities of their families of height functions. Inflection points on the surfaces are shown to be umbilic points from their families of height functions. Furthermore, we see that infle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::b3d64c78cca6c2a462d966c418f5eea2
https://repositorio.ufpb.br/jspui/handle/tede/7447
https://repositorio.ufpb.br/jspui/handle/tede/7447
Autor:
Rocha, Robério Batista da
Publikováno v:
Repositório Institucional da UFALUniversidade Federal de AlagoasUFAL.
The main goal of this dissertation is to present some results on minimal hypersurfaces in the Euclidean space related to the stability operator. Initially, we will present the demonstrations of the formulas of first and second variations of area and
Externí odkaz:
http://repositorio.ufal.br/handle/riufal/897
Autor:
Jesus, Ana Maria Menezes de
Publikováno v:
Repositório Institucional da UFALUniversidade Federal de AlagoasUFAL.
In this work we demonstrate a theorem obtained by F. Hang and X. Wang, which ensures that a compact Riemannian manifold (Mn,g) with nonempty boundary, Ricci curvature greater or equal to (n-1)g, boundary isometric to the (n-1)-dimensional sphere and
Externí odkaz:
http://repositorio.ufal.br/handle/riufal/1028
Autor:
Jesus, Ana Maria Menezes de
Publikováno v:
Repositório Institucional da Universidade Federal de Alagoas (UFAL)
Universidade Federal de Alagoas (UFAL)
instacron:UFAL
Universidade Federal de Alagoas (UFAL)
instacron:UFAL
In this work we demonstrate a theorem obtained by F. Hang and X. Wang, which ensures that a compact Riemannian manifold (Mn,g) with nonempty boundary, Ricci curvature greater or equal to (n-1)g, boundary isometric to the (n-1)-dimensional sphere and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::b702b61a4d5d276d795de0235d30b072
http://repositorio.ufal.br/handle/riufal/1028
http://repositorio.ufal.br/handle/riufal/1028