Tsukuba Journal of Mathematics

Author

Title

Page

Naonori Ishii and Katsuaki Yoshida

The automorphism group of a cyclic p-gonal curve

Hiroaki Niikuni

Identification of the absent spectral gaps in a class of generalized Kronig-Penney Hamiltonians

Aleksander Grytczuk

Upper bound for sum divisors function and the Riemann hypothesis

Elisabetta Barletta

The Lichnerowicz theorem on CR manifolds

Takao Hayami

Hochschild cohomology ring of the integral group ring of dihedral groups

Teruyuki Yorioka

Independent families of destructible gaps

Hideo Kubo and Sandra Lucente

Note on weighted Strichartz estimates for Klein-Gordon equations with potential

Shichang Shu

Curvature and rigidity of Willmore submanifolds

Mitsuhiro Itoh and Takanari Saotome

The Serre duality theorem for holomorphic vector bundles over a strongly pseudo-convex manifold

Jiryo Komeda and Akira Ohbuchi

On double coverings of a pointed non-singular curve with any Weierstrass semigroup

Author

Title

Page

Scattering for Nonlinear Symmetric Hyperbolic Systems

Takaaki Ohkubo and Kunio Sakamoto

CR Einstein-Weyl structures

Takao Hayami

On Hochschld cohomology ring of the integral group ring of the quaternion group

Alina Iacob

Generalized Tate cohomology

Yuki Haraguchi

On Non-commutative extensions of Ga by Gm over an Fp-Algebra

Yasuhiro Niitsuma

On the extensions of Wn by G over an Zp-Algebra

Jin-ichi Itoh and Fumiko Ohtsuka

Total curvature of noncompact piecewise Riemannian 2-Polyhedra

Mukut Mani Tripathi, Tooru Sasahara and Jeong-Sik Kim

On invariant submanifolds of contact metric manifolds

U-Hang Ki and Setsuo Nagai

Real hypersurfaces of a nonflat complex space form in terms of the Ricci tensor

Aleksander Grytczuk and Barbara Medryk

On a result of Flammenkamp-Luca concerning noncototient sequence

Takashi OKAYASU

A Gap theorem for complete four-dimensional manifolds with dW+ = 0

Author

Title

Page

Bifurcation of the Kolmogorov flow with an external friction

Nobuya Suzuki

Models of Peano arithematic as modules over initial segments

Zejun Hu and Haizhong Li

A rigidity theorem for hypersurfaces with positive Moebius Ricci curvature in Sⁿ⁺¹

Saburô UCHIYAMA

A Note on the Generalized Josephus Problem

Takuma Ogawa

Similarities between the trigonometric function and the lemniscate function from arithmetic view point

Takumi Yamada

A Construction of Compact Pseudo-Kähler Solvmanifolds with no Kähler Structures

Reiko SAKAMOTO

Energy method for numerical analysis

Gabriela Putinar

Finite jet determination for biholomorphisms of real-analytic hypersurfaces in C^N

Shin-ichi YASUTOMI

On A New Algorithm for Inhomogeneous Diophantine Approximation

Kaori Yamazaki

Extending pointwise bounded equicontinuous collections of functions

Reiko SAKAMOTO

A complete sequence of orthogonal subsets in H^M (Rⁿ) and a numerical approximation for boundary value problems

Yun Myung Oh and Joon Hyuk Kang

Lagrangian H-umbilical submanifolds in quaternion Euclidean spaces

Takahiko FURUYA

On an algebra associated with a circular quiver and its periodic projective bimodule resolution

Gastón Andrés García

On Hopf algebras of dimension p³

Author

Title

Page

Joujuu Ohmori

Simple components of Q [Sp₄(F_q)]

E. Ballico

Holomorphic vector bundles on quadric hypersurfaces of infinite-dimensional projective spaces

Nobuya Suzuki

Quantifier elimination results for products of ordered Abelian groups

Edgar E. Enochs and Overtoun M. G. Jenda

Gorenstein injective modules and Ext

Marco Cappiello

Fourier integral operators of infinite order and applications to SG-hyperbolic equations

Tatsuji Tanaka

On arithmetical bounds of Chow-forms

Shuan-hong Wang

A Maschke Type Theorem for Hopf π-Comodules

Masafumi Yoshino

Diophantine phenomena in commuting vector fields and diffeomorphisms

Filip Defever and R.Rosca

Riemannian manifolds structured by a local conformal section

Elisabetta Barletta and Sorin Dragomir

On the regularity of weak subelliptic F-harmonic maps

Reiko SAKAMOTO

Restricted energy inequalities and numerical approximations

T.Banakh, R.Cauty, K.Trushchak, and L.Zdomskyi

On Universality of Finite Products of Polish Spaces

Author

Title

Page

Analytic smoothing effects for a class of dispersive equations

Masakazu Takamura

On the Estimate of the Arithmetic Genus for Normal Two-Dimensional Singularities on Double Coverings

Takashi SADAMATSU

On a necessary condition for the wellposedness of the Cauchy problem for some degenerate parabolic equations

Shou Lin and Li Yan

A note on spaces with σ-compact-finite weak base

Mitsuaki Yato

On the Verschiebung morphism for g(λ)

Nobutaka Boumuki

Isotropic immersions and parallel immersions of space forms into space forms

Tomonori Noda

Reduciton of locally conformal symplectic manifolds with examples of non-Kähler Manifolds

Alessandro Morando

Hypoellipticity and local solvability of pseudolocal continuous linear operators in Gevrey classes

H. Murat Tuncali and Vesko Valov

On Finite-dimensional maps

Alessandro Languasco

On the exceptional set of Hardy-Littlewood's numbers in short intervals

Piotr Dacko

On almost para-cosymplectic manifolds

Yanhua Wang and Pu Zhang

Construct bi-Frobenius algebras via quivers

Naoya Ando

Parallel curved surfaces