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CONTENTS Volume 35, Number 2 June 2007 Notes on a Grüss Type Inequality and Its Application Zheng Liu  121 On Some Topological Properties of Dense Subsets of Spec (R) Mehdi Alaeiyan and Reza Safakish 129 Adjoint line bundles and syzygies of projective varieties Huy Tai Ha  135 IBN2 Rings and Their Grothendieck Groups Ximin Lu  153 Sharp Upper Bounds on the Spectral Radius of Graph Lihua Feng 163 Hausdorff First Countable, Countably Compact Space is $\Omega$ Bounded Nuno C. Freire and M. F. Veiga 169 Insertion of a Contra-Continuous Function Majid Mirmiran  177 The degree of C0-sufficiency of analytic function germs with respect to an ideal Pham Tien Son  187 Set-Valued Versions of Nash Equilibria and Ky Fan Inequality in Hyperconvex Metric Spaces Le Anh Dung  201 H-Cofinitely Supplemented Modules Muhammet Tamer Kosan  215 Twosteps-by-Twostep PIRKC Methods Nguyen Huu Cong and Le Ngoc Xuan 223

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