Ara es mostren els items 10-29 de 187

    • Bisymmetric non-negative Jacobi matrix realizations 

      Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Marijuan López, Carlos; Mitjana Riera, Margarida; Pisonero Pérez, Miriam (Taylor & Francis Group, 2023-12-21)
      Article
      Accés restringit per política de l'editorial
      Within the symmetric inverse eigenvalue problem, the case of bisymmetric Jacobi matrices occupies a central place, since for any strictly monotone list of n real numbers there exists a unique bisymmetric Jacobi matrix ...
    • Boundary value problems for Schrödinger operators on a path 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gago Álvarez, Silvia (2012-05-25)
      Report de recerca
      Accés obert
      In this work, we concentrate on determining explicit expressions, via suitable orthogonal polynomials on the line, for the Green function associated with any regular boundary value problem on a weighted path, whose weights ...
    • Boundary value problems for Schrödinger operators on a Path Associated to Orthogonal Polynomials 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gago Álvarez, Silvia (Springer, 2013)
      Capítol de llibre
      Accés restringit per política de l'editorial
      In this work, we concentrate on determining explicit expressions, via suitable orthogonal polynomials on the line, for the Green function associated with any regular boundary value problem on a weighted path, whose weights ...
    • Boundary value problems for second order linear difference equations: application to the computation of the inverse of generalized Jacobi matrices 

      Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José (Springer, 2019-07-22)
      Article
      Accés obert
      We have named generalized Jacobi matrices to those that are practically tridiagonal, except for the two final entries and the two first entries of its first andits last row respectively. This class of matrices encompasses ...
    • Bounded solutions of second order lineal difference equations with periodic coefficients 

      Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José (2016)
      Text en actes de congrés
      Accés obert
    • Bounded solutions of self-adjoint second order linear difference equations with periodic coefficients 

      Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José (2018-02-25)
      Article
      Accés obert
      In this work we obtain easy characterizations for the boundedness of the solutions of the discrete, self–adjoint, second order and linear unidimensional equations with periodic coefficients, including the analysis of the ...
    • Bounds on the first non-null eigenvalue for self-adjoint boundary value problems on networks 

      Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gesto Beiroa, José Manuel (2006-09)
      Article
      Accés obert
      We aim here at obtaining bounds on the first non-null eigenvalue for self-adjoint boundary value problems on a weighted network by means of equilibrium measures, that includes the study of Dirichlet, Neumann and Mixed ...
    • CÀLCUL INTEGRAL 

      Encinas Bachiller, Andrés Marcos (Universitat Politècnica de Catalunya, 2021-01-12)
      Examen
      Accés restringit a la comunitat UPC
    • CÀLCUL INTEGRAL 

      Encinas Bachiller, Andrés Marcos (Universitat Politècnica de Catalunya, 2020-10-27)
      Examen
      Accés restringit a la comunitat UPC
    • CÀLCUL INTEGRAL | EXTRAORDINARI 

      Encinas Bachiller, Andrés Marcos (Universitat Politècnica de Catalunya, 2021-07-05)
      Examen
      Accés restringit a la comunitat UPC
    • CÀLCUL INTEGRAL | EXTRAORDINARI 

      Encinas Bachiller, Andrés Marcos (Universitat Politècnica de Catalunya, 2023-07-02)
      Examen
      Accés restringit a la comunitat UPC
    • CÀLCUL INTEGRAL | FINAL 

      Encinas Bachiller, Andrés Marcos (Universitat Politècnica de Catalunya, 2024-01-19)
      Examen
      Accés restringit a la comunitat UPC
    • CÀLCUL INTEGRAL | PARCIAL 

      Encinas Bachiller, Andrés Marcos (Universitat Politècnica de Catalunya, 2023-10-24)
      Examen
      Accés restringit a la comunitat UPC
    • CÀLCUL INTEGRAL | PARCIAL 

      Encinas Bachiller, Andrés Marcos (Universitat Politècnica de Catalunya, 2021-11-03)
      Examen
      Accés restringit a la comunitat UPC
    • Cálculo de la inversa de una matriz de Jacobi 

      Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José (Universidad de Cádiz, 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      En este trabajo aportamos las condiciones necesarias y suficientes para la invertibilidad de las matrices de Jacobi y calculamos explícitamente su inversa. Las técnicas que utilizamos están relacionadas con la soluciones ...
    • Characterization of symmetric M-matrices as resistive inverses 

      Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gesto Beiroa, José Manuel (2007-01-25)
      Article
      Accés obert
      We aim here at characterizing those nonnegative matrices whose inverse is an irreducible Stieltjes matrix. Specifically, we prove that any irreducible Stieltjes matrix is a resistive inverse. To do that we consider the ...
    • Combinatorial recurrences and linear difference equations 

      Jiménez Jiménez, María José; Encinas Bachiller, Andrés Marcos (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this work we introduce the triangular arrays of depth greater than 1 given by linear recurrences, that generalize some well-known recurrences that appear in enumerative combinatorics. In particular, we focussed on ...
    • Combinatorial recurrences and linear difference equations 

      Jiménez Jiménez, María José; Encinas Bachiller, Andrés Marcos (2016-10-17)
      Article
      Accés obert
      In this work we introduce the triangular arrays of depth greater than 1 given by linear recurrences, that generalize some well known recurrences that appear in enumerative combinatorics. In particular, we focussed on ...
    • Computational cost of the Fekete problem 

      Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gesto Beiroa, José Manuel (2007-10-11)
      Article
      Accés obert
      We present here strong numerical and statistical evidence of the fact that the Smale's 7th problem can be answered affirmatively. In particular, we show that a local minimum for the logarithmic potential energy in the ...
    • Curs 0: preparació per als estudis a l’EEBE 

      Tornil Sin, Sebastián; Botey Cumella, Muriel; Alarcón Jordán, Marta; Alcaraz Sendra, Olga; Ametller Congost, Lluís; Bruna Escuer, Pere; Camps Anaya, Germinal; Carmona Mejías, Ángeles; Claverol Aguas, Mercè; Crespo Artiaga, Daniel; Pablo Ribas, Joan de; Barrio Casado, María del; Valle Mendoza, Luis Javier del; Encinas Bachiller, Andrés Marcos; Farran Marsà, Adriana; Florido Pérez, Antonio; Gámez López, Antonio; García Senz, Domingo; Gibert Agulló, Oriol; Ikhouane, Fayçal; Jiménez Jiménez, María José; José Pont, Jordi; Linares Alegret, Manuel; Lloveras Muntané, Pol Marcel; López López, José; Macovez, Roberto; Mas Blesa, Albert; Mitjana Riera, Margarida; Muñoz Romero, José; Pardo Soto, Luis Carlos; Periago Oliver, M. Cristina; Pineda Soler, Eloi; Pradell Cara, Trinitat; Ruiz Ordóñez, Magda; Sala Cladellas, Glòria; Soler Turu, Lluís; Tamarit Mur, José Luis; Vendrell Villafruela, Xavier; Zanuy Gomara, David (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2022-05)
      Article
      Accés obert
      Aquest article presenta el desenvolupament i primers resultats d'ús d'un conjunt de cursos virtuals que pretenen proporcionar uns coneixements inicials bàsics de Matemàtiques, Física i !ímica als estudiants que accedeixen ...