Tsukuba Journal of Mathematics

Author

Title

Page

Masahiro Kaminaga and Fumihiko Nakano

Spectral properties of quasiperiodic Kronig-Penney model

Aleksander Grytczuk and Jaroslaw Grytczuk

Ljunggren's trinomials and matrix equation Ax+Ay=Az

Yoshitomo Baba and Hiroyuki Miki

On strongly almost hereditary rings

Naoya Ando

A class of real-analytic surfaces in the 3-Euclidean space

Shuan-hong Wang

A construction of braided Hopf algebras

Masanori Kozaki and Sadahiro Maeda

A characterization of extrinsic spheres in a Riemannian manifold

J.N. Alonso Alvarez, J.M. Fernandez Vilaboa and R. Gonzalez Rodriguez

The Hopf algebra structure of a crossed product in a braided monoidal category

Masakazu Takiguchi

An extension of Rauch comparison theorem to glued Riemannian spaces

Norifumi Yamatani

S4-formula and S2-formula for quasi-triangular biFrobenius algebras

Sorin Dragomir and Jun Masamune

Cauchy-Riemann orbifolds

Reiko Sakamoto

Dirichlet-Neumann problem in a domain with piecewise-smooth boundary

Kazunari Sugiyama

b-Functions of regular simple prehomogeneous vector spaces

Author

Title

Page

Massimo Cicognani

The Cauchy Problem for Strictly Hyperbolic Operators with Non-Absolutely Continuous Coefficients

Ryszard Deszcz and Marian Hotlos

On Some Pseudosymmetry Type Curvature Condition

Noriaki Umeda

Blow-up and Large Time Behavior of Solutions of a Weakly Coupled System of Reaction-Diffusion Equations

Byung Keun Sohn and Dae Hyeon Pahk

Analytic Representation of Generalized Tempered Distributions of Exponential Growth by Wavelets

Zhou Jianwei

Irreducible Clifford Modules

Zhou Jianwei

Spinors, Calibrations and Grassmannians

Antonio J. Di Scala

Autoparallel distributions and splitting theorems

Charles B. Ragozzine, Jr

Hopf Algebras Generated by a Coalgebra

Osamu SHUKUZAWA

Diagonalization of elements of Freudenthal R-vector space and split Freudenthal R-vector space

Kuniko SAKAMOTO

Three-Distance Sequences with Three Symbols

Katsuro Sakai and Masato Yaguchi

Characterizing Manifolds Modeled on Certain Dense Subspaces of Non-Separable Hilbert Spaces

Takao Komatsu

Simple Continued Fraction Expansions of Some Values of Certain Hypergeometric Functions

Kazuya Hayashida

Unique continuation for fast diffusion

Daniele Del Santo and Martino Prizzi

A remark on well-posedness for hyperbolic equations with singular coefficients

Toshikazu Miyashita

Fixed points subgroups by two involutive automorphisms σ, γ of compact exceptional Lie groups F₄, E₆ and E₇

Author

Title

Page

Vanishing theorem for 2-torsion instanton invariants

Yury Nikolayevsky

Surfaces with simple geodesics

Alejandro Illanes

Zero-dimensional subsets of hyperspaces

Nobuo Nakazawa

On hypoellipticity for a class of pseudo-differential operators

Hyang Sook Kim, Yong-Soo Pyo and Kyoung-Hwa Shin

On the Chern-type problem in an indefinite Kahler geometry

Henryk Michalewski

Homogeneity of K(Q)

Liu Jinlin

Ruscheweyh derivative and strongly starlike functions

Setsuo Nagai

Invariant homogeneous structures on homogeneous real hypersurfaces in a complex projective space and an odd-dimensional sphere

David E. Dobbs

When is an ordered field a metric space?

Wu Bing-Ye

Curvature pinching theorems for minimal surfaces in complex Grassmann manifolds

Hiroshi Mikawa

On exponential sums over primes in arithmetic pro-gressions

Hiroshi Mikawa

On Goldbach numbers in arithmetic progressions

Jorg Brudern and Trevor D. Wooley

On Waring's problem: two cubes and seven biquadrates

Csaba Vincze

On the existence of C-conformal changes of Riemann-Finsler metrics

Noriaki Sato

On Lagrangian H-umbilical surfaces in CP^2(C)

Beatrice Ruini and Fulvia Spaggiari

Corrigendum to "On the structure of Takahashi manifolds"

Author

Title

Page

Bin Zhu

Triangular matrix algebras over quasi-hereditary algebras

George Michael,A.A.

On the smoothing problem

Naohiro Kanesaka

Explicit structures of three-dimensional hypersurface purely elliptic singularities of type (0,1)

Tadashi Tomaru

Pinkham-Demazure construction for two dimensional cyclic quotient singularities

Massimo Cicognani, Luisa Zanghirati

Nonlinear weakly hyperbolic equations with Levi condition in Gevrey classes

Shuan Hong Wang

On the braided structures of bicrossproduct Hopf algebras

Hiroshi Mikawa

On primes in arithmetic progressions

Hong Jae Kang, Hiroyuki Tasaki

Integral geometry of real surfaces in complex projective spaces

Tatsuo Nishitani, Jean Vaillant

Smoothly symmetrizable systems and the reduced dimensions

Yutaka Iwamoto, Kazuo Tomoyasu

Higson compactifications obtained by expanding and contracting the half-open interval

Nicolas Andruskiewitsch, Sonia Natale

Counting arguments for Hopf algebras of low dimension

Sorin Dragomir, Maria Rosaria Enea

Unstable harmonic maps into real hypersurfaces of a complex Hopf manifold

Julian Fernandez Bonder, Julio D. Rossi

Life span for solutions of the heat equation with a nonlinear boundary condition

Author

Title

Page

Vitalij A. Chatyrko and Yasunao Hattori

Estimations of small transfinite dimension in separable metrizable spaces

Michele Mulazzani

On periodic Takahashi manifolds

Makoto Sakaki

Spacelike minimal surfaces in 4-dimensional Lorentzian space forms

A. Miyai

An explicit formula for the square of the Riemann zeta-function on the critical line

Hironobu Honda

Analytic regularity of solutions to the Cauchy problem for degenerate parabolic equations

Hyunjung Song

Some differential-geometric properties of R-spaces

Miguel Ortega and Juan de Dios Perez

Some conditions on the Weingarten endomorphism of real hypersurfaces in quaternionic space forms

Bogdan Suceava

The Chen invariants of warped products of hyperbolic planes and their applications to immersibility problems

Yasuo Yuzawa

Propagation of analyticity of solutions to the Cauchy problem for weakly hyperbolic semi-linear equations

S. Montgomery and H.-J. Schneider

Skew derivations of finite-dimensional algebras and actions of the double of the Taft Hopf algebra

Filip Defever and Radu Rosca

On a class of even-dimensional manifolds structured by a T-parallel connection

Yan-kui Song

Discretely star-Lindelof spaces

Takashi Okaji

A note on the wave packet transforms

Yasushi Ishikawa

A small example of non-local operators having no transmission property

Jan Jaworowski, Nguyen To Nhu, Paul Sisson, Nguyen Nhuy, and Pham Quang Trinh

Rigid spaces and the AR-Property

Tsuyoshi Hiratsuka and Nariyuki Minami

Derivation of Wigner's semi-circle law for a class of matrix ensembles via Brownian motion

Kazuyuki Hasegawa

The index and certain stability of minimal anti invariant submanifolds in Sasakian and Kahler Manifolds