Recent Submissions

  • BI-LIPSCHITZ AND DIFFERENTIABLE SUFFICIENCY OF WEIGHTED JETS

    Costa, João Carlos Ferreira Autor UNESP; Saia, Marcelo José; Soares Junior, Carlos Humberto (Journal of Singularities, 2022) [Artigo]
    In this work we study bi-Lipschitz and differential sufficiency in the set of weighted jets of map germs of weighted degree. Our main result improves the degree of sufficiency of jets in the classical jet space obtained ...
  • Formulations and exact solution approaches for a coupled bin-packing and lot-sizing problem with sequence-dependent setups

    Melega, Gislaine Mara; de Araujo, Silvio Alexandre Autor UNESP; Jans, Raf; Morabito, Reinaldo (Flexible Services and Manufacturing Journal, 2022) [Artigo]
    We study bin-packing and lot-sizing decisions in an integrated way. Such a problem appears in several manufacturing settings where items first need to be cut and next assembled into final products. One of the main novelties ...
  • Optimality conditions for interval valued optimization problems

    Villanueva, Fabiola R.; de Oliveira, Valeriano A. Autor UNESP; Costa, Tiago M. (Fuzzy Sets and Systems, 2022) [Artigo]
    This work addresses constrained optimization problems in which the objective function is interval-valued while the inequality constraints functions are real-valued. Both necessary and sufficient optimality conditions are ...
  • Limit Cycles Bifurcating from a Periodic Annulus in Discontinuous Planar Piecewise Linear Hamiltonian Differential System with Three Zones

    Pessoa, Claudio Autor UNESP; Ribeiro, Ronisio Autor UNESP (International Journal of Bifurcation and Chaos, 2022) [Artigo]
    In this paper, we study the number of limit cycles that can bifurcate from a periodic annulus in a discontinuous planar piecewise linear Hamiltonian differential system with three zones separated by two parallel straight ...
  • Symmetry and symmetry breaking for Hénon-type problems involving the 1-Laplacian operator

    Pimenta, Marcos T. O. Autor UNESP; Gonzaga, Anderson dos Santos Autor UNESP (Communications in Contemporary Mathematics, 2022) [Artigo]
    In this work, we study a class of Hénon-type equations which involve the 1-Laplacian operator in the unit ball. Under mild assumptions on the nonlinearity, the existence of radial solutions is proved and, for a parameter ...
  • Liouville-Gelfand Type Problems for the N-Laplacian on Bounded Domains of ℝN

    Silva, Elves A. B. de; Scares, Sergio H. M. Autor UNESP (Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, 1999) [Artigo]
    In this article it is used minimax methods to establish some results of existence and multiplicity of solutions for the A N-Laplacian equation on bounded domains of ℝN, with Dirichlet boundary conditions, when the nonlinearity ...
  • Two variable Freud orthogonal polynomials and matrix Painleve-type difference equations

    Bracciali, Cleonice F. Autor UNESP; Costa, Glalco S.; Perez, Teresa E. (Journal Of Difference Equations And Applications, 2022) [Artigo]
    We study bivariate orthogonal polynomials associated with Freud weight functions depending on real parameters. We analyse relations between the matrix coefficients of the three term relations for the orthonormal polynomials ...
  • The Cone Structure Theorem

    Batista, Erica Boizan; Costa, João Carlos Ferreira Autor UNESP; Nuño-Ballesteros, Juan José (International Mathematics Research Notices, 2021) [Artigo]
    We consider the topological classification of finitely determined map germs f: (Rn, 0) → (Rp, 0) with f-1(0) = {0}. Associated with f we have a link diagram, which is well defined up to topological equivalence. We prove ...
  • Invariant probabilities for discrete time linear dynamics via thermodynamic formalism

    Lopes, Artur O.; Messaoudi, Ali Autor UNESP; Stadlbauer, Manuel; Vargas, Victor (Nonlinearity, 2021) [Artigo]
    We show the existence of invariant ergodic σ-additive probability measures with full support on X for a class of linear operators L : X → X, where L is a weighted shift operator and X either is the Banach space c0(ℝ) or ...
  • Chain recurrence and average shadowing in dynamics

    Alves, Fabricio F.; Bernardes, Nilson C.; Messaoudi, Ali Autor UNESP (Monatshefte fur Mathematik, 2021) [Artigo]
    We investigate several notions related to pseudotrajectories, including chain recurrence and shadowing properties, for a special class of diffeomorphisms on euclidean spheres, known as spherical linear transformations, and ...
  • Lattices from abelian extensions and error-correcting codes

    Interlando, J. Carmelo; da Nóbrega Neto, Trajano Pires Autor UNESP; Nunes, José Valter Lopes; Lopes, José Othon Dantas (Rocky Mountain Journal of Mathematics, 2021) [Artigo]
    A construction of laminated lattices of full diversity in odd dimensions d with 3 ≤ d ≤ 15 is presented. The technique, which uses a combination of number fields and error-correcting codes, consists essentially of two ...
  • Shadowing and structural stability for operators

    Bernardes Jr, Nilson C.; Messaoudi, Ali Autor UNESP (Ergodic Theory and Dynamical Systems, 2021) [Artigo]
    A well-known result in the area of dynamical systems asserts that any invertible hyperbolic operator on any Banach space is structurally stable. This result was originally obtained by Hartman in 1960 for operators on ...
  • A new number field construction of the D4-lattice

    Interlando, J. Carmelo; Lopes, José Othon Dantas; da Nóbrega Neto, Trajano Pires Autor UNESP (International Journal of Applied Mathematics, 2018) [Artigo]
    A classical problem in lattice theory is to determine whether a given lattice can be realized as OK-lattice, where OK is the ring of integers of some number field K. In this work we show that the lattice D4 can be realized ...
  • Four-dimensional lattices from ℚ(√2,√5)

    Interlando, J. Carmelo; Neto, Trajano Pires da Nóbrega Autor UNESP; Nunes, José Valter Lopes; Lopes, José Othon Dantas (International Journal of Applied Mathematics, 2017) [Artigo]
    Four-dimensional lattices with block circulant generator matrices are constructed from submodules of the ring of integers of the totally real number field ℚ(√2,√5). The obtained lattices are of full diversity and their ...
  • Lattice constellations matched to GF(p)

    Favareto, Osvaldo Milaré Autor UNESP; Da Nóbrega Neto, Trajano Pires Autor UNESP; Interlando, J. Carmelo Autor UNESP; Palazzo Jr., Reginaldo Autor UNESP (IEEE International Symposium on Information Theory - Proceedings, 1997) [Trabalho apresentado em evento]
    Signal sets matched to the additive group of GF(p) under the Mannheim distance are constructed. Such constellations are obtained via the ring of algebraic integers of an extension K=Q(√d) of Q, Where d=-1 or d=-3. The ...
  • PARAMETERS OF A POSITIVE CHAIN SEQUENCE ASSOCIATED WITH ORTHOGONAL POLYNOMIALS

    Marcato, Gustavo A. Autor UNESP; Sri Ranga, A. Autor UNESP; Lun, Yen Chi Autor UNESP (Proceedings of the American Mathematical Society, 2022) [Artigo]
    The objective here is to provide a new characterization of all the parameter sequences of a positive chain sequence that has been of importance in the study of orthogonal polynomials on the real line. Connection formulas ...
  • An Extension of the Coherent Pair of Measures of the Second Kind on the Unit Circle

    Garza, Lino G.; Marcellán, F.; Ranga, A. Sri Autor UNESP (Operator Theory: Advances and Applications, 2021) [Capítulo de livro]
    This paper deals with sequences of monic polynomials { Φn(μk;z)}n≥0, k = 0, 1, orthogonal with respect to two nontrivial Borel measures μk, k = 0, 1, supported on the unit circle, satisfying (formula presented) n ≥ 3, where ...
  • Mixed orthogonality on the unit ball

    Bracciali, Cleonice F. Autor UNESP; Pérez, Teresa E. (Computational and Applied Mathematics, 2021) [Artigo]
    We consider multivariate functions satisfying mixed orthogonality conditions with respect to a given moment functional. This kind of orthogonality means that the product of functions of different parity order is computed ...
  • A review of mathematical optimization models applied to the sugarcane supply chain

    Teixeira, Eduardo dos Santos Autor UNESP; Rangel, Socorro Autor UNESP; Florentino, Helenice de O. Autor UNESP; de Araujo, Silvio Alexandre Autor UNESP (International Transactions in Operational Research, 2021) [Artigo]
    Sugarcane is a product of great economic relevance and, as well as its use for the production of different types of sugar, it is also a renewable source for the production of bio-fuels, other bio-products, and electricity. ...
  • Rational first integrals of the liénard equations: The solution to the poincaré problem for the liénard equations

    Llibre, Jaume; Pessoa, Claudio Autor UNESP; Ribeiro, Jarne D. (Anais da Academia Brasileira de Ciencias, 2021) [Artigo]
    Poincaré in 1891 asked about the necessary and sufficient conditions in order to characterize when a polynomial differential system in the plane has a rational first integral. Here we solve this question for the class of ...

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