Now showing items 1-20 of 106

  • A cyclic sum 

    Díaz Barrero, José Luis (2017-05)
    Article
    Restricted access - author's decision
  • A cyclic trigonometric inequality 

    Díaz Barrero, José Luis (Wiley, 2018-10)
    Article
    Restricted access - publisher's policy
  • A Fibonacci-Lucas determinant 

    Díaz Barrero, José Luis (2018-02)
    Article
    Restricted access - author's decision
  • A fourier sum 

    Díaz Barrero, José Luis (Wiley, 2017-10)
    Article
    Restricted access - author's decision
  • A limit involving Gamma function 

    Díaz Barrero, José Luis (2018-10)
    Article
    Restricted access - publisher's policy
  • A Lucas number determinant 

    Díaz Barrero, José Luis (Wiley, 2017-04)
    Article
    Restricted access - author's decision
  • Análisis de datos composicionales: aguas, contaminantes, recursos, sociología... 

    Egozcue Rubí, Juan José; Tolosana Delgado, Raimon; Jarauta Bragulat, Eusebio; Ortego Martínez, María Isabel; Díaz Barrero, José Luis (Universitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011-11-15)
    Conference lecture
    Open Access
    Los datos composicionales describen las partes de un todo. Se presentan en forma de vectores proporciones, porcentajes, concentraciones químicas etc. y aparecen en multitud de campos de la ciencia y la ingeniería. A pesar ...
  • An application of Cauchy's theorem 

    Díaz Barrero, José Luis (Wiley, 2018-12)
    Article
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  • A new inequality for the triangle 

    Díaz Barrero, José Luis (Wiley, 2017-12)
    Article
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  • A new inequality involving complex numbers 

    Díaz Barrero, José Luis (2018-03)
    Article
    Restricted access - author's decision
  • An improvement of Ostrowski root-finding method 

    Grau Sánchez, Miguel; Díaz Barrero, José Luis (2006-02)
    Article
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    An improvement to the iterative method based on the Ostrowski one to compute nonlinear equation solutions, which increases the local order of convergence is suggested. The adaptation of a strategy presented here gives a ...
  • An inequality in n variables[: problem] 

    Díaz Barrero, José Luis (The Mathematical Association of America, 2015-11)
    Article
    Restricted access - publisher's policy
  • An inequality involving binomial coefficients 

    Díaz Barrero, José Luis (Wiley, 2018-11)
    Article
    Restricted access - publisher's policy
  • An irrational infinite sum 

    Díaz Barrero, José Luis (Wiley, 2017-02)
    Article
    Restricted access - author's decision
  • Annuli for the zeros of a polynomial 

    Popescu, Pantelimon George; Díaz Barrero, José Luis (2015-12)
    Article
    Restricted access - publisher's policy
    In this paper, ring shaped regions containing all the zeros of a polynomial with complex coeffcients involving binomial coeffcients and Fibonacci-Pell numbers are given. Furthermore, bounds for strictly ...
  • Annuli for the zeros of a polynomial 

    Díaz Barrero, José Luis (2014-10)
    Article
    Restricted access - publisher's policy
  • A nonlinear system of equations 

    Díaz Barrero, José Luis (2018-06)
    Article
    Restricted access - publisher's policy
  • A nonnegative multiple sum 

    Díaz Barrero, José Luis (2017-01)
    Article
    Restricted access - author's decision
  • A not usual integral 

    Díaz Barrero, José Luis (2018-03)
    Article
    Restricted access - author's decision
  • A rational inequality for positive numbers 

    Díaz Barrero, José Luis (Wiley, 2018-05)
    Article
    Restricted access - publisher's policy