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Artigos

Artigos

 

Recent Submissions

  • Santos, Carlos Alberto; Santos, Lais (Zeitschrift für angewandte Mathematik und Physik, 2018-12)
    In this paper, we are going to show existence of branches of bifurcation of positive W1,ploc(Ω)Wloc1,p(Ω) -solutions for the very singular non-local λλ -problem −⎛⎝⎜∫Ωg(x,u)dx⎞⎠⎟rΔpu=λ(a(x)u−δ+b(x)uβ) in Ω,u>0 ...
  • Miyagaki, Olimpio H.; Figueiredo, Djairo G.de (Nonlinear Analysis: Theory, Methods & Applications, 1991)
  • Miyagaki, Olimpio Hiroshi; Assunção, Ronaldo B.; Carrião, Paulo Cesar (Journal of Mathematical Analysis and Applications, 2007-02-01)
    In this work we consider existence and multiplicity results of nontrivial solutions for a class of quasilinear degenerate elliptic equations in RN of the form (P)−div[|x|−ap|∇u|p−2∇u]+λ|x|−(a+1)p|u|p−2u=|x|−bq|u|q−2u+f, ...
  • Miyagaki, Olímpio Hiroshi; Abreu, Emerson A. M. de (Nonlinear Analysis: Theory, Methods & Applications, 2004-10)
    In this paper we establish the existence of multiple radial solutions for a class of quasilinear operators with nonlinear boundary Robin conditions. Besides other conditions, we consider the nonlinearities having a behavior ...
  • Fernandes, Sônia Maria; Lanzilotta, Marcelo; Hernández, Octavio Mendoza (Algebras and Representation Theory, 2015-04)
    In Igusa and Todorov (2005) introduced two functions ϕ and ψ, which are natural and important homological measures generalising the notion of the projective dimension. These Igusa-Todorov functions have become a powerful ...
  • Faria, Mercio Botelho; Vieira, Vandenberg Lopes; Palazzo Jr., Reginaldo (Computational and Applied Mathematics, 2016-04)
    In this paper we present generalized edge-pairings for the family of hyperbolic tessellations {10λ,2λ}{10λ,2λ} , with the purpose to obtain the corresponding discrete group of isometries. These tessellations have greater ...
  • Alves, Margareth da Silva (Nonlinear Analysis: Theory, Methods & Applications, 1997-03)
  • Miyagaki, Olimpio Hiroshi; Assunção, Ronaldo B.; Carrião, Paulo Cesar (Journal of Mathematical Analysis and Applications, 2007-02-01)
    In this work we consider existence and multiplicity results of nontrivial solutions for a class of quasilinear degenerate elliptic equations in RN of the form (P)−div[|x|−ap|∇u|p−2∇u]+λ|x|−(a+1)p|u|p−2u=|x|−bq|u|q−2u+f, ...
  • Alves, Margareth S.; Rivera, Jaime E. Muñoz; Sepúlveda, Mauricio; Villagrán, Octavio P. Vera (Applied Mathematics Letters, 2012-05)
    In this paper we investigate the asymptotic behavior of solutions to the initial boundary value problem for a mixture of two rigid solids modeling temperature and porosity. Our main result is to establish conditions which ...
  • Mendoza, Valentín (Topology and its Applications, 2014-08-15)
    In this paper we deal with the Boyland forcing of horseshoe orbits. We prove that there exists a set R of renormalizable horseshoe orbits containing only quasi-one-dimensional orbits, that is, for these orbits the Boyland ...
  • Ballesteros, Juan J. Nuño; Fuster, M. Carmen Romero (Journal of Geometry, 1993-03)
  • Fassoni, A. C.; Martins, M. L. (Ecological Complexity, 2014-06)
    Exotic plants threaten the biodiversity of natural habitats and the integrity of agricultural systems throughout the World. Therefore, understanding, predicting and controlling plant invasions became issues of great practical ...
  • Rosa, Valéria M.; Letelier, Patricio S. (General Relativity and Gravitation, 2007-06-16)
    We study, in some detail, the linear stability of closed timelike curves in the Gödel universe. We show that these curves are stable. We present a simple extension (deformation) of the Gödel metric that contains a class ...
  • Miyagaki, O. H.; Souto, M. A. S. (Journal of Differential Equations, 2008-12-15)
    Superlinear elliptic boundary value problems without Ambrosetti and Rabinowitz growth condition are considered. Existence of nontrivial solution result is established by combining some arguments used by Struwe and Tarantello ...
  • Miyagaki, O. H.; Assunção, R. B.; Carrião, P. C. (Nonlinear Analysis: Theory, Methods & Applications, 2007-03-15)
    In this work we improve some known results for a singular operator and also for a wide class of lower-order terms by proving a multiplicity result. The proof is made by applying the generalized mountain-pass theorem due ...
  • Jesus, C. Mendes de; Hacon, D.; Fuster, M.C. Romero (Topology and its Applications, 2007-01-01)
    We consider the problem of constructing stable maps from surfaces to the plane with branch set a given set of curves immersed (except possibly with cusps) in the plane. Various constructions are used (1) piecing together ...
  • Miyagaki, O. H.; Rodrigues, R. S. (Journal of Mathematical Analysis and Applications, 2007-10-15)
    We study through the lower and upper-solution method, the existence of positive weak solution to the quasilinear elliptic system with weights ⎧ ⎪ −div(|x|−ap |∇u|p−2 ∇u) = λ|x|−(a+1)p+c1 uα v γ in Ω, ⎨ −div(|x|−bq ...
  • Miyagaki, Olimpio Hiroshi; Assuncao, Ronaldo B.; Carrião, Paulo Cesar (Applied Mathematics Letters, 2006-08)
    In this work we deal with the class of critical singular quasilinear elliptic problems in R N of the form −div(|x|−ap |∇u| p−2 ∇u) = α|x|−bq |u|q−2 u + β|x|−dr k|u|r−2 u x ∈ RN , (P) where 1 < p < N, a < N/ p, a ≤ b < a + ...
  • Miyagaki, O. H.; Miotto, M. L. (Nonlinear Analysis: Theory, Methods & Applications, 2009-10-01)
    In this paper, existence and multiplicity results to the following Dirichlet problem −∆u + u = λf (x)|u|q−1 + h(x)|u|p−1 , u > 0, u = 0, in Ω in Ω on ∂ Ω are established, where Ω = Ω × R, Ω ⊂ RN −1 is bounded smooth domain ...
  • Miyagaki, Olímpio H.; Soares, Sérgio H. M.; Ó, João M. B. do (Nonlinear Analysis: Theory, Methods & Applications, 2007-12-15)
    Quasilinear elliptic equations in R2 of second order with critical exponential growth are considered. By using a change of variable, the quasilinear equations are reduced to semilinear equations, whose respective associated ...

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