Tsukuba Journal of Mathematics

Author

Title

Page

Gladys Chalom and Hector Merklen

Representation type of one point extensions of tilted euclidean algebras

Yasuo Kamata

The algorithm to calculate the period matrix of the curve x^m + yⁿ=1

Yasuyuki Nagatomo

Singular sets of ideal instantons and Poincare duality

Wu Bing-Ye

1-Type minimal surfaces in complex Grassmann manifolds and its Gauss map

Hong Jae Kang

Integral geometry on product of spheres

Satomi Oka

On the common divisor of discriminants of integers

Reiko Sakamoto

Numerical approximation of weak solutions for boundary value problems

Bang-yen Chen and Luc Vrancken

Lagrangian submanifolds of the complex hyperbolic space

Tooru Sasahara

On Chen invariant of CR-submanifolds in a complex hyperbolic space

E. Ballico

Trigonal Gorenstein curves and Weierstrass points

Camillo Costantini and Valentin Gutev

Recognizing special metrics by topological properties of the "metric"-proximal hyperspace

Toshiyuki Ichiyama

The first variation formula for Weyl structures

Adriana Nenciu

The center construction for weak Hopf algebras

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