Tsukuba Journal of Mathematics

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

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

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

Jan van Mill, Mikhail G.Tkachenko, Vladimir V.Tkachuk, and Richard G. Wilson

Local properties and maximal Tychonoff connected spaces

Tatsuo Nishitani and Jean Vaillant

Smoothly symmetrizable complex systems and the real reduced dimension

Masaru Iizuka, Miyuki Maeno and Matsuyo Tomisaki

Asymptotic conditional distributions related to one-dimensional generalized diffusion processes

Jong Taek Cho

Levi-parallel hypersurfaces in a complex space form

Taka-aki Tanaka

Algebraic independence of modified reciprocal sums of products of Fibonacci numbers

Dorota Kowalczyk

On the Reissner-Nordstörm-de Sitter type spacetimes

Katsumi Nagai

The integrated density of stated of one-dimensional random Schrödinger operator with white noise potential and background

Vitalij A.Chatyrko

Subspaces of the Sorgenfrey line and their products

Alessia Ascanelli

Gevrey well posedness for a second order weakly hyperbolic equation with non regular in time coefficients

Hiroshi Tanaka and Hirokazu Yokoyama

Quantifier elimination of the products of ordered Abelian groups

Florian Luca and Igor E. Shparlinski

On the number of polynomial maps into Zn

Author

Title

Page

Naoya ANDO

Semisurfaces and The Equations of Codazzi-mainardi

Katsuya Mashimo

On the branching theorem of the pair (F4, Spin(9))

Kenji Kuwabara

Grassmann Geometry on the groups of rigid motions on the Euclidean and the Minkowski planes

Jose Antonio de la Pena and Changchang Xi

Hochschild Cohomology of Algebras with Homological Ideals

Martha P. Dussan

Space-like isothermic surfaces and Grassmannian systems

P.A.Krutitskii and V.V.Kolybasova

The Dirichlet-Neumann Problem for the Dissipative Helmholtz Equation in a 2-D Cracked Domain with the Neumann Condition on Cracks

Katsuhiro Moriya

A space of minimal tori with one end and cyclic symmetry

Kotaro Mine

Universal spaces of non-separable absolute Borel classes

Sorin Dragomir and Ermanno Lanconelli

On first order linear PDE systems all of whose solutions are harmonic functions

Carlos Biasi and Alice Kimie Miwa Libardi

Remarks on the Bordism Intersection Map

Masato Yaguchi

Hyperspaces of finite subsets of non-separable Hilbert spaces

De-Jun Feng, Maki Furukado, Shunji Ito and Jun Wu

Pisot substitutions and the Hausdorff dimension of boundaries of Atomic surfaces

Toshiji Terada

Continuity of interpolations

Alessandro Languasco

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

Author

Title

Page

Luigia Di Terlizzi, Jerzy J. Konderak and Robert Wolak

A generalization of the Boothby-Wang theorem

Mayuko Kon

Ricci recurrent CR submanifolds of a complex space form

Saburo Uchiyama

A further note on the generalized Josephus problem

Hyunjin Lee

Riemannian manifolds referred to warped product models

Katsumi AKAHORI

Remarks on the Clifford index of algebraic curves

Katsumi AKAHORI

Normal generation of line bundles of degree 2g-2h1(L)-Cliff(X)-k(k = 2,3,4) on Curves

Ryuji Sasaki

Hermitian Jacobi Forms of index one

Kiyoshi Mochizuki

On scattering for wave equations with time dependent coefficients

Takashi Sakai

Transferred kinematic formulae in two point homogeneous spaces

Masaya Tomie

Group presentation of the Schur-multiplier derived from a loop group

Kouhei Miura

Construction of harmonic maps between semi-Riemannian spheres

Author

Title

Page

Representations of normalizer subgroups of maximal tori of simple Lie groups

Chiaki Tsukamoto

Stability in SO(n+3)/SO(3)\times SO(n) branchig

Kazuo Takemura, Hiroyuki Yamagishi, Yoshinori Kametaka, Kohtaro Watanabe and Atsushi Nagai

The best constant of Sobolev inequality corresponding to a bending problem of a beam on an interval

Yuriko Gorai, Hiroyuki Tasaki, and Mio Yamakawa

Convergence rates of approximate sums of the areas of surfaces of revolution

Aleksander Grytczuk and Izabela Kurzydlo

On some matrix diophantine equations

Absos Ali Shaikh, Yoon Dae-won and Shyamal Kumar Hui

On quasi-Einstein spacetimes

Author

Title

Page

Makoto Takahashi

Representation of normalizer subgroups of maximal tori of the classical group of type C

Yuuki Tadokoro

A nontrivial algebraic cycle in the Jacobian variety of the Fermat sextic

U-Hang Ki, Hiroyuki Kurihara and Ryoichi Takagi

Jacobi operators along the structure flow on real hypersurfaces in a nonflat complex space form

Tomohiro Kamiyoshii

A characterization of finite prehomogeneous vector spaces of D4-type under various scalar restrictions

Akira Kamibeppu

Subcomplexes of box complexes of graphs

Shingo Ibuka, Hirotaka Kikyo, and Hiroshi Tanaka

Quantifier elimination for lexicographic products of ordered abelian groups

Takefumi Igarashi and Noriaki Umeda

Nonexistence of global solutions in time for reaction-diffusion systems with inhomogeneous terms in cones

Shinetsu Tamura and Nobuhiro Innami

Circular billiards and parallel axiom in convex billiards

Hisashi Kojima

The lifting of elliptic modular forms to Hilbert modular forms and Petersson inner products

Masaya Ouchi

A classification of k-simple prehomogeneous vector spaces under some conditions

Author

Title

Page

Hideyuki Sakaguchi

A Matsumoto-type theorem for linear groups over some completed quantum tori

Takashi Teshigawara

A condition for algebras associated with a cyclic quiver to be symmetric

Juhani Mieminen, Matti Peltola and Pasi Ruotsalainen

On Graphs Like Hypercubes

Erhan Güler and Aysel Turgut Vanli

On the mean, Gauss, the second Gaussian and the second mean curvature of the helicoidal surfaces with light-like axis in R31

Kazuaki Taira

Introduction to boundary value problems of nonlinear elastostatics

Hidenori Tanaka

Submetacompactness and weak submetacompactness in countable products, 2

P.V. Ramakrishnan and T. Lakshmi

A note on the fusion of two vertices in a fuzzy graph

Chuan Liu, Shou Lin and Lewis D. Ludwig

Spaces with a σ-point-discrete weak base

Yun-Feng Bai and Takuo Miwa

On p-maps and M-maps

Shigeki Akiyama, Horst Brunotte, Attila Pethö and Wolfgang Steiner

Periodicity of certain piecewise affine planar maps

Author

Title

Page

Huaipeng Chen

Characterizations and properties of stratifiable spaces

Takamitsu Yamauchi

The role of countable paracompactness for continuous selections avoiding extreme points

Benharrat Belaïdi and Abdallah El Farissi

Relation between differential polynomials of certain complex linear differential equations and meromorphic functions of finite order

Akira Kamibeppu

Homotopy type of the box complexes of graphs without 4-cycles

Yoshio Matsuyama

Curvature pinching for Kaehler submanifolds of a complex projective space *

Daisuke Dobashi

A Characterization of tiling groups

Sorin Dragomir and Krishan L. Duggal

Indefinite extrinsic spheres

Jörg Brüdern

Representations of natural numbers as the sum of a prime and a k-th power

Taro Kimura

Stability of certain reflective submanifolds in compact symmetric spaces

Jörg Brüdern, Koichi Kawada and Trevor D. Wooley

Additive representation in thin sequences, VII: Restricted moments of the number of representations

Naonori Ishii and Katsuaki Yoshida

Correction to the automorphism group of a cyclic p-gonal curve