Tsukuba Journal of Mathematics

Vol.31, No.1 (2007)
Author  Title  Page  Naonori Ishii and Katsuaki Yoshida  The automorphism group of a cyclic pgonal curve  1  Hiroaki Niikuni  Identification of the absent spectral gaps in a class of generalized KronigPenney Hamiltonians  39  Aleksander Grytczuk  Upper bound for sum divisors function and the Riemann hypothesis  67  Elisabetta Barletta  The Lichnerowicz theorem on CR manifolds  77  Takao Hayami  Hochschild cohomology ring of the integral group ring of dihedral groups  99  Teruyuki Yorioka  Independent families of destructible gaps  129  Hideo Kubo and Sandra Lucente  Note on weighted Strichartz estimates for KleinGordon equations with potential  143  Shichang Shu  Curvature and rigidity of Willmore submanifolds  175  Mitsuhiro Itoh and Takanari Saotome  The Serre duality theorem for holomorphic vector bundles over a strongly pseudoconvex manifold  195  Jiryo Komeda and Akira Ohbuchi  On double coverings of a pointed nonsingular curve with any Weierstrass semigroup  205  

Vol.29, No.2 (2005)
Author  Title  Page   Scattering for Nonlinear Symmetric Hyperbolic Systems  285  Takaaki Ohkubo and Kunio Sakamoto  CR EinsteinWeyl structures  309  Takao Hayami  On Hochschld cohomology ring of the integral group ring of the quaternion group  363  Alina Iacob  Generalized Tate cohomology  389  Yuki Haraguchi  On Noncommutative extensions of Ga by Gm over an FpAlgebra  405  Yasuhiro Niitsuma  On the extensions of Wn by G over an ZpAlgebra  437  Jinichi Itoh and Fumiko Ohtsuka  Total curvature of noncompact piecewise Riemannian 2Polyhedra  471  Mukut Mani Tripathi, Tooru Sasahara and JeongSik Kim  On invariant submanifolds of contact metric manifolds  495  UHang Ki and Setsuo Nagai  Real hypersurfaces of a nonflat complex space form in terms of the Ricci tensor  511  Aleksander Grytczuk and Barbara Medryk  On a result of FlammenkampLuca concerning noncototient sequence  533  Takashi OKAYASU  A Gap theorem for complete fourdimensional manifolds with dW+ = 0  539  

Vol.29, No.1 (2005)
Author  Title  Page   Bifurcation of the Kolmogorov flow with an external friction  1  Nobuya Suzuki  Models of Peano arithematic as modules over initial segments  19  Zejun Hu and Haizhong Li  A rigidity theorem for hypersurfaces with positive Moebius Ricci curvature in S^{n+1}  29  Saburô UCHIYAMA  A Note on the Generalized Josephus Problem  49  Takuma Ogawa  Similarities between the trigonometric function and the lemniscate function from arithmetic view point  65  Takumi Yamada  A Construction of Compact PseudoKähler Solvmanifolds with no Kähler Structures  79  Reiko SAKAMOTO  Energy method for numerical analysis  111  Gabriela Putinar  Finite jet determination for biholomorphisms of realanalytic hypersurfaces in C^{N}  147  Shinichi YASUTOMI  On A New Algorithm for Inhomogeneous Diophantine Approximation  173  Kaori Yamazaki  Extending pointwise bounded equicontinuous collections of functions  197  Reiko SAKAMOTO  A complete sequence of orthogonal subsets in H^{M} (R^{n}) and a numerical approximation for boundary value problems  215  Yun Myung Oh and Joon Hyuk Kang  Lagrangian Humbilical submanifolds in quaternion Euclidean spaces  233  Takahiko FURUYA  On an algebra associated with a circular quiver and its periodic projective bimodule resolution  247  Gastón Andrés García  On Hopf algebras of dimension p^{3}  259  

Vol.28, No.2 (2004)
Author  Title  Page  Joujuu Ohmori  Simple components of Q [Sp_{4}(F_{q})]  245  E. Ballico  Holomorphic vector bundles on quadric hypersurfaces of infinitedimensional projective spaces  279  Nobuya Suzuki  Quantifier elimination results for products of ordered Abelian groups  291  Edgar E. Enochs and Overtoun M. G. Jenda  Gorenstein injective modules and Ext  303  Marco Cappiello  Fourier integral operators of infinite order and applications to SGhyperbolic equations  311  Tatsuji Tanaka  On arithmetical bounds of Chowforms  363  Shuanhong Wang  A Maschke Type Theorem for Hopf πComodules  377  Masafumi Yoshino  Diophantine phenomena in commuting vector fields and diffeomorphisms  389  Filip Defever and R.Rosca  Riemannian manifolds structured by a local conformal section  401  Elisabetta Barletta and Sorin Dragomir  On the regularity of weak subelliptic Fharmonic maps  417  Reiko SAKAMOTO  Restricted energy inequalities and numerical approximations  437  T.Banakh, R.Cauty, K.Trushchak, and L.Zdomskyi  On Universality of Finite Products of Polish Spaces  455  

Vol.28, No.1 (2004)
Author  Title  Page   Analytic smoothing effects for a class of dispersive equations  1  Masakazu Takamura  On the Estimate of the Arithmetic Genus for Normal TwoDimensional Singularities on Double Coverings  35  Takashi SADAMATSU  On a necessary condition for the wellposedness of the Cauchy problem for some degenerate parabolic equations  75  Shou Lin and Li Yan  A note on spaces with σcompactfinite weak base  85  Mitsuaki Yato  On the Verschiebung morphism for g(λ)  93  Nobutaka Boumuki  Isotropic immersions and parallel immersions of space forms into space forms  117  Tomonori Noda  Reduciton of locally conformal symplectic manifolds with examples of nonKähler Manifolds  127  Alessandro Morando  Hypoellipticity and local solvability of pseudolocal continuous linear operators in Gevrey classes  137  H. Murat Tuncali and Vesko Valov  On Finitedimensional maps  155  Alessandro Languasco  On the exceptional set of HardyLittlewood's numbers in short intervals  169  Piotr Dacko  On almost paracosymplectic manifolds  193  Yanhua Wang and Pu Zhang  Construct biFrobenius algebras via quivers  215  Naoya Ando  Parallel curved surfaces  223  