Now showing items 196-215 of 245

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      ¿Qué ve un poeta en las Matemáticas para llevarlas a su poesía?  [Article]

      Paralera Morales, Concepción; Núñez Valdés, Juan (2012)
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      Relating the Freiheitssatz to the asymptotic behavior of a group  [Article]

      Fernández Lasheras, Francisco Jesús; Roy, Ranja (European Mathematical Society, 2013)
      We are concerned with the implications of the Freiheitssatz property for certain group presentations in terms of proper ...
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      Relations between combinatorial structures and Lie algebras: centers and derived Lie algebras  [Article]

      Ceballos González, Manuel; Núñez Valdés, Juan; Tenorio Villalón, Ángel Francisco (Springer, 2015-04)
      In this paper, we study how two important ideals of a given Lie algebra g (namely, the center Z(g) and the derived Lie ...
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      Riemannian submersions and slant submanifolds  [Article]

      Cabrerizo Jaraíz, José Luis; Carriazo Rubio, Alfonso; Fernández Fernández, Luis Manuel; Fernández Andrés, Manuel (Institute of Mathematics (University of Debrecen), 2002)
      We study the relationship between slant submanifolds in both Complex and Contact Geometry through Riemannian submersions. ...
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      Rigidity of pseudo-isotropic immersions  [Article]

      Cabrerizo Jaraíz, José Luis; Fernández Andrés, Manuel; Gómez Casanueva, Juan Salvador (Elsevier, 2009-07)
      Several notions of isotropy of a (pseudo)Riemannian manifold have been introduced in the literature, in particular, the ...
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      Santilli autotopisms of partial groups  [Article]

      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  [Presentation]

      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  [Article]

      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?  [Article]

      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  [Article]

      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  [Article]

      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  [Article]

      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  [Article]

      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  [Article]

      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  [Presentation]

      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  [Article]

      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  [Article]

      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  [Article]

      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  [Article]

      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  [Article]

      Núñez Valdés, Juan; Tenorio Villalón, Ángel Francisco (Real Sociedad Matemática Española, 2002)