Tsukuba Journal of Mathematics

Vol.24, No.1 (2000)

Author	Title	Page
Toshiaki Adachi, Sadahiro Maeda and Seiichi Udagawa	Simpleness and closedness of circles in compact Hermitian symmetric spaces	1
Mark L. Teply and Seog Hoon Rim	On coverings of modules	15
Nakao Hayashi, Pavel I. Naumkin and Patrick-Nicolas Pipolo	Analytic smoothing effects for some derivative nonlinear Schrodinger equations	21
Xiaowei Xu and Reiko Sakamoto	Boundary value problems related to differential operators with coefficients of generalized Hermite operators	35
Tatsuya Arakawa	A note on normally generated line bundles on compact Riemann surfaces II	59
Katsuro Sakai and Shigenori Uehara	Spaces of upper semi-continuous multi-valued functions on separable metric spaces	69
Sandra Lucente	Nonlinear wave equation with potential	81
Tatsuji Tanaka	On the Chow-forms of elliptic normal curves of degree 4	109
Hiroyuki Kurihara	The type number on real hypersurfaces in a quaternion space form	127
Li Ma	On the existence of solutions of prescribing scalar curvature problem	133
Ryosuke Ichida	The injectivity radius and the fundamental group of compact homogeneous Riemannian manifolds of positive curvature	139
Janusz J. Charatonik and Pavel Pyrih	Atomic mappings can spoil lightness of open mappings	157
Daigo Hirohashi, Takahiro Kanno and Hiroyuki Tasaki	Area-minimizing of the cone over symmetric R-spaces	171
Reiko Aiyama and Kazuo Akutagawa	Kenmotsu type representation formula for spacelike surfaces in the de Sitter 3-space	189
Toshiji Terada	Topological lattices Ck(X) and Cp(X): Embeddings and Isomorphisms	197
Shin-ichi Kasai	On the microlocal structure of regular simple prehomogeneous vector space (GL(1)^2 \times SL(7), \Lambda_3+\Lambda^*_1)	209

Vol.24, No.2 (2000)

Author

Title

Page

Hajime Ono

Vanishing theorem for 2-torsion instanton invariants

221

Yury Nikolayevsky

Surfaces with simple geodesics

233

Alejandro Illanes

Zero-dimensional subsets of hyperspaces

249

Nobuo Nakazawa

On hypoellipticity for a class of pseudo-differential operators

257

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

On the Chern-type problem in an indefinite Kahler geometry

279

Henryk Michalewski

Homogeneity of K(Q)

297

Liu Jinlin

Ruscheweyh derivative and strongly starlike functions

303

Setsuo Nagai

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

311

David E. Dobbs

When is an ordered field a metric space?

325

Wu Bing-Ye

Curvature pinching theorems for minimal surfaces in complex Grassmann manifolds

337

Hiroshi Mikawa

On exponential sums over primes in arithmetic pro-gressions

351

Hiroshi Mikawa

On Goldbach numbers in arithmetic progressions

361

Jorg Brudern and Trevor D. Wooley

On Waring's problem: two cubes and seven biquadrates

387

Csaba Vincze

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

419

Noriaki Sato

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

427

Beatrice Ruini and Fulvia Spaggiari

Corrigendum to "On the structure of Takahashi manifolds"

433

Vol.25, No.1 (2001)

Author	Title	Page
Bin Zhu	Triangular matrix algebras over quasi-hereditary algebras	1
George Michael,A.A.	On the smoothing problem	13
Naohiro Kanesaka	Explicit structures of three-dimensional hypersurface purely elliptic singularities of type (0,1)	47
Tadashi Tomaru	Pinkham-Demazure construction for two dimensional cyclic quotient singularities	75
Massimo Cicognani, Luisa Zanghirati	Nonlinear weakly hyperbolic equations with Levi condition in Gevrey classes	85
Shuan Hong Wang	On the braided structures of bicrossproduct Hopf algebras	103
Hiroshi Mikawa	On primes in arithmetic progressions	121
Hong Jae Kang, Hiroyuki Tasaki	Integral geometry of real surfaces in complex projective spaces	155
Tatsuo Nishitani, Jean Vaillant	Smoothly symmetrizable systems and the reduced dimensions	165
Yutaka Iwamoto, Kazuo Tomoyasu	Higson compactifications obtained by expanding and contracting the half-open interval	179
Nicolas Andruskiewitsch, Sonia Natale	Counting arguments for Hopf algebras of low dimension	187
Sorin Dragomir, Maria Rosaria Enea	Unstable harmonic maps into real hypersurfaces of a complex Hopf manifold	203
Julian Fernandez Bonder, Julio D. Rossi	Life span for solutions of the heat equation with a nonlinear boundary condition	215

Vol.25, No.2 (2001)

Author	Title	Page
Vitalij A. Chatyrko and Yasunao Hattori	Estimations of small transfinite dimension in separable metrizable spaces	221
Michele Mulazzani	On periodic Takahashi manifolds	229
Makoto Sakaki	Spacelike minimal surfaces in 4-dimensional Lorentzian space forms	239
A. Miyai	An explicit formula for the square of the Riemann zeta-function on the critical line	247
Hironobu Honda	Analytic regularity of solutions to the Cauchy problem for degenerate parabolic equations	261
Hyunjung Song	Some differential-geometric properties of R-spaces	279
Miguel Ortega and Juan de Dios Perez	Some conditions on the Weingarten endomorphism of real hypersurfaces in quaternionic space forms	299
Bogdan Suceava	The Chen invariants of warped products of hyperbolic planes and their applications to immersibility problems	311
Yasuo Yuzawa	Propagation of analyticity of solutions to the Cauchy problem for weakly hyperbolic semi-linear equations	321
S. Montgomery and H.-J. Schneider	Skew derivations of finite-dimensional algebras and actions of the double of the Taft Hopf algebra	337
Filip Defever and Radu Rosca	On a class of even-dimensional manifolds structured by a T-parallel connection	359
Yan-kui Song	Discretely star-Lindelof spaces	371
Takashi Okaji	A note on the wave packet transforms	383
Yasushi Ishikawa	A small example of non-local operators having no transmission property	399
Jan Jaworowski, Nguyen To Nhu, Paul Sisson, Nguyen Nhuy, and Pham Quang Trinh	Rigid spaces and the AR-Property	413
Tsuyoshi Hiratsuka and Nariyuki Minami	Derivation of Wigner's semi-circle law for a class of matrix ensembles via Brownian motion	443
Kazuyuki Hasegawa	The index and certain stability of minimal anti invariant submanifolds in Sasakian and Kahler Manifolds	465

Vol.26, No.1 (2002)

Author	Title	Page
Gladys Chalom and Hector Merklen	Representation type of one point extensions of tilted euclidean algebras	1
Yasuo Kamata	The algorithm to calculate the period matrix of the curve x^m + yⁿ=1	15
Yasuyuki Nagatomo	Singular sets of ideal instantons and Poincare duality	39
Wu Bing-Ye	1-Type minimal surfaces in complex Grassmann manifolds and its Gauss map	49
Hong Jae Kang	Integral geometry on product of spheres	61
Satomi Oka	On the common divisor of discriminants of integers	69
Reiko Sakamoto	Numerical approximation of weak solutions for boundary value problems	79
Bang-yen Chen and Luc Vrancken	Lagrangian submanifolds of the complex hyperbolic space	95
Tooru Sasahara	On Chen invariant of CR-submanifolds in a complex hyperbolic space	119
E. Ballico	Trigonal Gorenstein curves and Weierstrass points	133
Camillo Costantini and Valentin Gutev	Recognizing special metrics by topological properties of the "metric"-proximal hyperspace	145
Toshiyuki Ichiyama	The first variation formula for Weyl structures	171
Adriana Nenciu	The center construction for weak Hopf algebras	189