Now showing items 208-227 of 254

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      Santilli autotopisms of partial groups 

      Falcón Ganfornina, Raúl Manuel; Núñez Valdés, Juan (Science Publishing Group, 2015-10)
      This paper deals with those partial groups that contain a given Santilli isotopism in their autotopism group. A classification of these autotopisms is explicitly determined for partial groups of order n ≤ 4.
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      Santilli's autotopism of associative partial quasigroups 

      Falcón Ganfornina, Raúl Manuel; Núñez Valdés, Juan (International Academic Press, 2007)
      In this paper, given an isotopism Θ ∈ In, we study some properties of the set SAPLS(Θ) of those partial Latin squares being the multiplication table of an associative partial quasigroup having Θ as a Santilli’s autotopism.
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      Sasaki-Einstein and paraSasaki-Einstein metrics from (κ,μ)-structures 

      Cappelletti Montano, Beniamino; Carriazo Rubio, Alfonso; Martín Molina, Verónica (Elsevier, 2013-11)
      We prove that every contact metric (κ, µ)-space admits a canonical η-Einstein Sasakian or η-Einstein paraSasakian metric. ...
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      ¿Se puede mejorar la enseñanza de las Matemáticas en cualquiera de sus niveles? 

      Ceballos González, Manuel; Núñez Valdés, Juan; Rodríguez Arévalo, María Luisa (Universidad Politécnica de Madrid, 2012-10)
      Los autores piensan que es perfectamente factible mejorar la enseñanza de las Matemáticas en cualquiera de sus niveles ...
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      Semi-slant submanifolds of a Sasakian manifold 

      Cabrerizo Jaraíz, José Luis; Carriazo Rubio, Alfonso; Fernández Fernández, Luis Manuel; Fernández Andrés, Manuel (Springer, 1999-11)
      We define and study both bi-slant and semi-slant submanifolds of an almost contact metric manifold and, in particular, of ...
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      Siete puentes, un camino: Königsberg 

      Núñez Valdés, Juan; Alfonso Pérez, María; Bueno Guillén, Silvia; Diánez del Valle, María del Rocío; Elías Olivenza, María del Carmen de (Federacion Española de Sociedades de Profesores de Matemáticas, 2004-02)
      En este trabajo se presenta el problema de los puentes de Konigsberg, resuelto por Leonhard Euler, en 1735, como herramienta ...
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      Simplicial Lusternik-Schnirelmann category 

      Fernández Ternero, Desamparados; Macías Virgós, Enrique; Minuz, Erica; Vilches Alarcón, José Antonio (Universidad Autónoma de Barcelona, 2019-01-01)
      The simplicial LS-category of a nite abstract simplicial complex is a new invariant of the strong homotopy type, de ned ...
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      Simply connected lie subgroups of the unipotent Lie group of order 4 

      Benjumea Acevedo, Juan Carlos; Echarte Reula, Francisco Javier; Núñez Valdés, Juan; Tenorio Villalón, Ángel Francisco (Soochow University, Department of Mathematics, 2006-04)
      In this paper we obtain simply connected Lie subgroups (up to isomorphism) of the Lie group G4 of upper triangular matrices ...
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      La Sociedad Andaluza de Educación Matemática THALES, Medalla de Andalucía 2010 

      Núñez Valdés, Juan (Real Sociedad Matemática Española, 2010)
      La Sociedad Andaluza de Educación Matemática THALES ha sido galardonada con la Medalla de Andalucía 2010, concedida por ...
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      Some advances in the research on Lie algebras 

      Benjumea Acevedo, Juan Carlos; Falcón Ganfornina, Raúl Manuel; Fernández Ternero, Desamparados; Márquez García, María del Carmen; Núñez Valdés, Juan (2008)
      The main goal of this poster, which is written in the form of a survey and tries to show some aspects of the research of ...
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      Some inequalities on totally real submanifolds in locally conformal Kaehler space forms 

      Carriazo Rubio, Alfonso; Kim, Young Ho; Yoon, Dae Won (Korean Mathematical Society, 2004)
      In this article, we establish sharp relations between the sectional curvature and the shape operator and also between the ...
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      Some relationships between intrinsic and extrinsic invariants of submanifolds in generalized S-space-forms 

      Fernández Fernández, Luis Manuel; Fuentes Pino, Ana María (Hacettepe University, 2015)
      We establish some inequalities of Chen’s type between certain intrinsic invariants (involving sectional, Ricci and scalar ...
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      Some special types of developable ruled surface 

      Alegre Rueda, Pablo Sebastián; Arslan, Kadri; Carriazo Rubio, Alfonso; Murathan, Cengizhan; Özturk, Günay (Hacettepe University (Faculty of Science), 2010)
      In this study we consider the focal curve Cγ of a space curve γ and its focal curvatures. We characterize some special ...
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      Sophus Lie: un matemático visionario 

      Núñez Valdés, Juan; Tenorio Villalón, Ángel Francisco; Martín Molina, Verónica (2007)
      A diferencia de una mera exposici´on de datos puramente biogr´aficos, este art´ıculo pretende dar a conocer a cualquier ...
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      Sophus M. Lie 

      Núñez Valdés, Juan; Tenorio Villalón, Ángel Francisco (Real Sociedad Matemática Española, 2002)
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      Structural aspects of the non-uniformly continuous functions and the unbounded functions within C(X) 

      Ayala Gómez, Rafael; Bernal González, Luis; Calderón Moreno, María del Carmen; Vilches Alarcón, José Antonio (Elsevier, 2019-04-01)
      We prove in this paper that if a metric space supports a real continuous function which is not uniformly continuous then, ...
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      Structure on a slant submanifold of a contact manifold 

      Cabrerizo Jaraíz, José Luis; Carriazo Rubio, Alfonso; Fernández Fernández, Luis Manuel; Fernández Andrés, Manuel (Indian National Science Academy, 2000-07)
      In this paper, we study the possibility of obtaining an induced contact metric structure on a slant submanifold of a contact metric manifold. We also give a characterization theorem for three-dimensional slant submanifolds.
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      Study of Lie algebras by using combinatorial structures 

      Ceballos González, Manuel; Núñez Valdés, Juan; Tenorio Villalón, Ángel Francisco (2010)
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      Submanifolds of generalized Sasakian space forms 

      Alegre Rueda, Pablo Sebastián; Carriazo Rubio, Alfonso (Mathematical Society of the Republic of China, 2009-06)
      In the present paper submanifolds of generalized Sasakian-spaceforms are studied. We focus on almost semi-invariant ...
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      Submanifolds weakly associated with graphs 

      Carriazo Rubio, Alfonso; Fernández Fernández, Luis Manuel; Rodríguez Hidalgo, Antonio (Indian Academy of Sciences, 2009-06)
      We establish an interesting link between differential geometry and graph theory by defining submanifolds weakly associated ...