Publications in collaboration with researchers from Universidade da Beira Interior (26)

2023

  1. Multiplication of closed balls in (Formula presented)

    Turkish Journal of Mathematics, Vol. 47, Núm. 7, pp. 1899-1914

  2. Skew-symmetric matrices related to the vector cross product in C7

    Analele Stiintifice ale Universitatii Ovidius Constanta, Seria Matematica, Vol. 31, Núm. 1, pp. 47-69

2022

  1. Arithmetic for closed balls

    Quaestiones Mathematicae, Vol. 45, Núm. 9, pp. 1459-1471

  2. COUNTING NON-ISOMORPHIC GENERALIZED HAMILTON QUATERNIONS

    International Electronic Journal of Algebra, Vol. 31, Núm. 31, pp. 143-160

2019

  1. Evolving New Market Structures

    Pathways to a Smarter Power System (Elsevier), pp. 183-203

2018

  1. Generalized Quaternion Rings over Z/ nZ for an Odd n

    Advances in Applied Clifford Algebras, Vol. 28, Núm. 1

  2. Vector cross product differential and difference equations in r3 and in r7

    Electronic Journal of Linear Algebra, Vol. 34, pp. 675-686

2017

  1. A Note on Standard Composition Algebras of Types II and III

    Advances in Applied Clifford Algebras, Vol. 27, Núm. 2, pp. 955-964

  2. A novel stochastic reserve cost allocation approach of electricity market agents in the restructured power systems

    Electric Power Systems Research, Vol. 152, pp. 223-236

  3. A review of multi-agent based energy management systems

    Advances in Intelligent Systems and Computing

  4. On skew-symmetric matrices related to the vector cross product in R7

    Electronic Journal of Linear Algebra, Vol. 32, pp. 138-150

  5. On the Zero Divisor Graphs of the Ring of Lipschitz Integers Modulo n

    Advances in Applied Clifford Algebras, Vol. 27, Núm. 2, pp. 1191-1202

2016

  1. An Associative Triple System of the Second Kind

    Communications in Algebra, Vol. 44, Núm. 11, pp. 5027-5043

  2. Prediction of five softwood paper properties from its density using support vector machine regression techniques

    BioResources, Vol. 11, Núm. 1, pp. 1892-1904

2015

  1. On the Structure of Quaternion Rings Over Z/n

    Advances in Applied Clifford Algebras, Vol. 25, Núm. 4, pp. 875-887

  2. Using apparent density of paper from hardwood kraft pulps to predict sheet properties, based on unsupervised classification and multivariable regression techniques

    BioResources, Vol. 10, Núm. 3, pp. 5920-5931

2011

  1. On identities of a ternary quaternion algebra

    Communications in Algebra, Vol. 39, Núm. 3, pp. 830-842

2008

  1. Existence and uniqueness of solutions of degenerate parabolic equations with variable exponents of nonlinearity

    Journal of Mathematical Sciences, Vol. 150, Núm. 5, pp. 2289-2301

  2. Extinction of solutions of parabolic equations with variable anisotropic nonlinearities

    Proceedings of the Steklov Institute of Mathematics, Vol. 261, Núm. 1, pp. 11-21

2007

  1. Parabolic equations with anisotropic nonstandard growth conditions

    International Series of Numerical Mathematics (Springer Science and Business Media Deutschland GmbH), pp. 33-44