Vol 21 No 1-2 (2003) | Boletim da Sociedade Paranaense de Matemática

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Published: 2009-06-28

Essays

Planos e hiperplanos reais e complexos - doi: 10.5269/bspm.v21i1-2.7513

Ludmila Bourchtein

137-143
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Aspectos da Matemática na Exploração Sustentável de Recursos Pesqueiros - doi: 10.5269/bspm.v21i1-2.7515

Edson Alves

145-153
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Research Articles

Multiple Positive Solutions for a Fourth-order Boundary Value Problem - doi: 10.5269/bspm.v21i1-2.7503

Yaoliang Zhu, Peixuan Weng

9-19
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Oscillation Criteria for Delay Neutral Difference Equations with Positive and Negative Coefficients - doi: 10.5269/bspm.v21i1-2.7504

Chuan-Jun Tian, Sui Sun Cheng

19-30
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Simultaneous observability of networks of beams and strings - doi: 10.5269/bspm.v21i1-2.7505

Eszter Sikolya

31-41
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Splitting 3-plane sub-bundles over the product of two real projective spaces - doi: 10.5269/bspm.v21i1-2.7506

Maria Hermínia P. L. Mello, Mário Olivero Marques da Silva

43-50
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Análise Complexa e Geometria Diferencial de certas Superfícies do Espaço hiperbólico - doi: 10.5269/bspm.v21i1-2.7507

Ricardo Sa Earp

51-72
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On Nonlinear Coupled System with Nonlocal Boundary Conditions - doi: 10.5269/bspm.v21i1-2.7508

Mauro L. Santos, C. A. Raposo, U. R. Soares

73-96
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Characterizations of low separation axioms via - doi: 10.5269/bspm.v21i1-2.7509

Miguel Caldas, D. N. Georgiou, S. Jafari

97-111
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Maximal chain transitive sets for local groups - doi: 10.5269/bspm.v21i1-2.7511

Carlos José Braga Barros, Luiz A. B. San Martin

113-125
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Global Solutions for a System of Klein-Gordon Equations with Memory - doi: 10.5269/bspm.v21i1-2.7512

Angela Mognon, Doherty Andrade

127-136
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