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  • Research Article
  • Open Access

Oscillatory mixed difference systems

Advances in Difference Equations20062006:092923

  • Received: 2 November 2005
  • Accepted: 21 February 2006
  • Published:


The aim of this paper is to discuss the oscillatory behavior of difference systems of mixed type. Several criteria for oscillations are obtained. Particular results are included in regard to scalar equations.


  • Differential Equation
  • Partial Differential Equation
  • Ordinary Differential Equation
  • Functional Analysis
  • Functional Equation


Authors’ Affiliations

Departamento de Matemática, Instituto Superior Técnico, Avenida Rovisco Pais, Lisboa, 1049-001, Portugal
Departamento de Matemática, Universidade dos Açores, Rua Mãe de Deus, Ponta Delgada, 9500-321, Portugal


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© J. M. Ferreira and S. Pinelas 2006

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.