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 Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 353—468Download front and back covers
Original Articles
 Duality in an Optimal Harvesting Problem by a Nonlinear Age-Spatial Structured Population Dynamic System Yongkuk Kim1 , Mi Jin Lee2, Il Hyo Jung2 Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 353—364
 Related Fixed Point Theorem for Six Mappings on Three Fuzzy Metric Spaces Sushil Sharma1 , Prashant Tilwankar2 Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 365—374
 Baer and Quasi-Baer Modules over Some Classes of Rings Abdelfattah Haily, Hamid Rahnaoui Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 375—384
 On Some Lacunary Generalized Difference Sequence Spaces of Invariant Means Defined by a Sequence of Modulus Functions Gülcan Atici1, Çigdem Asma Bektas2 Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 385—393
 Real Hypersurfaces in Complex Two-plane Grassmannians with $\mathfrak{F}$-parallel Normal Jacobi Operator Imsoon Jeong, Young Jin Suh Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 395—410
 Subordination Problems of Robertson Functions Li-Mei Wang Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 411—417
 Resonance of Continued Fractions Related to ${}_2\psi_{2}$ Basic Bilateral Hypergeometric Series Pankaj Srivastava Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 419—427
 On b-Locally Open Sets in Bitopological Spaces Binod Chandra Tripathy, Diganta Jyoti Sarma Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 429—433
 A Chebyshev Collocation Method for Stiff Initial Value Prob- lems and Its Stability Sangdong Kim, Jongkyum Kwon, Xiangfan Piao and Philsu Kim Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 435—456
 On $N(\kappa)$-Contact Metric Manifolds Satisfying Certain Curvature Conditions Avik De1, Jae-Bok Jun2 Kyungpook Mathematical Journal 2011 Vol. 51, No. 4, 457—468