Vol.21, No.1

  Existence of solutions for fourth order differential equations

Author : LONG-YI TSAI (蔡隆義)

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  Common fixed point theorems in Menger spaces

Author : TONG-HUEI CHANG(張東輝)

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  Kinematic formula for square mean curvature of hypersurfaces

Author : JIAZU ZHOU (周家足)

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  Asymptotic behaviour of neutral differential equations with distributed delay

Author : D. BAINOV and V. PETROV

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  A new class of fault tolerant communication networks

Author : MAURI KYNSIJARVI and JUHANI NIEMINEN

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  Applications of $f$-contraction mappings to nonlinear integral equatins

Author : PETER Z. DAFFER and HIDEAKI KANEKO

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  On unification of some fuzzy covering axioms

Author : M. N. MUKHERJEE and S. MALAKAR

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  A combined approach to the fundamental theorems for normed spaces

Author : WALTER ROTH

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