# Tsukuba Journal of Mathematics

Vol.35, No.2 (2011)
 Author Title Page Tetsuya Hosaka On boundaries of coxeter groups and topological fractal structures 153 Sorin Dragomir and Andrea Tommasoli On p-harmonic maps into spheres 161 Chuan Liu and Yoshio Tanaka Metrizability of ordered additive groups 169 Fatima Zohra Mezeghrani Necessary and sufficient conditions for the solvability and maximal regularity of abstract differential equations of mixed type in UMD spaces 185 Kota Takeuchi A generalization of Shelah's omitting types theorem 203 Makoto Sakaki Lorentzian stationary surfaces in 4-dimensional space forms of index 2 215 Keiju Sono A second limit formula for higher rank twisted Epstein zeta functions and some applications 231 Gen-ichi Oshikiri On killing fields preserving minimal foliations of of polynomial growth at most 2 253 Alberto Favaron and Angelo Favini Fractional powers and interpolation theory for multivalued linear operators and applications to degenerate differential equations 259
Vol.35, No.1 (2011)
 Author Title Page Ayato Mitsuishi The Gromov-Hausdorff distances between Alexandrov spaces of curvature bounded below by 1 and the standard spheres 1 Renato Manfrin Propagation of analyticity in the $C^\infty$ solutions of quasi-linear weakly hyperbolic wave equations 13 Hiroyuki Kurihara The structure Jacobi operator for real hypersurfaces in the complex projective plane and the complex hyperbolic plane 53 Takashi Shimomura Chain mixing endomorphisms are approximated by subshifts on the Cantor set 67 Nobuhiro Innami, Yukihiro Mashiko, and Katsuhiro Shiohama Metric spheres in the projective spaces with constant holomorphic sectional curvature 79 Changwen Li On weakly s-quasinormally embedded and ss-quasinormal subgroups of finite groups 91 Mikhail Sgibnev An asymptotic expansion for the distribution of the supremum of a Markov-modulated random walk 103 Michio Hamada On the quasi-irreducibility and complete quasi-reducibility of some reductive prehomogeneous vector spaces 115 Atsushi Ishii and Kengo Kishimoto The Quandle coloring invariant of a reducible handlebody-knot 131 Yuki Anbo Random graphs with a randam bijection 143
Vol.34, No.2 (2010)
 Author Title Page Naoyuki Koike Hermann type actions on a pseudo-Riemannian symmetric space 137 Hiroyuki Nakaoka Comparison of the definitions of abelian 2-categories 173 Nobuhiro Aki On the Cartier duality of certain finite group schemes of type $(p^n ,..., p^n)$ 183 Hisashi Kojima On Siegel modular cusp forms of degree two. 201 Tomoo Yokoyama On some classes of spectral posets 213 Tomoyuki Kakehi and Kensuke Sakai Behavior of solutions to linear and semilinear parabolic pseudo-differential equations 221 Takeshi Kurosawa, Yohei Tachiya, and Taka-aki Tanaka Algebraic independence of infinite products generated by Fibonacci numbers 255 Takashi Kondo On the group of extensions Ext^1(G^$(&lambda)$_0),E^$(&lambda)$,...,$(&lambda)$_n)) over a discrete valuation ring 265
Vol.34, No.1 (2010)
 Author Title Page Lewis D. Ludwig, Peter Nyikos, and John E. Porter Dowker spaces revisited 1 Takumi Ogawa and Yasuo Kamata A product formula defined by the Beta function and Gauss's hypergeometric function 13 Nobuhiro Aki and Michio Amano On the Cartier duality of certain finite group schemes of type $(p^n, p^n)$ 31 Kim Hyo Gyeong The construction of the uniformly minimum variance unbiased estimator 47 Soumya Das Note on Hermitian Jacobi forms 59 Kenta Ueyama Geometric classification of quadratic algebras in two variables 79 Shunsuke Murata Bernoulli-type relations in some noncommutative polynomial ring 97 Kazuhiro Okumura Odd dimentional Riemannian submanifolds admitting the almost contact metric structure in a Euclidean sphere 117 Mohammed Hichem Mortad Similarities involving unbounded normal operators 129
Vol.33, No.2 (2009)
Author
Title
Page
 Jun-ichi Matsuzawa and Makoto Takahashi
Representations of normalizer subgroups of maximal tori of simple Lie groups
189
Chiaki Tsukamoto
Stability in SO(n+3)/SO(3)\times SO(n) branchig
239
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
253
Yuriko Gorai, Hiroyuki Tasaki, and Mio Yamakawa
Convergence rates of approximate sums of the areas of surfaces of revolution
281
Aleksander Grytczuk and Izabela Kurzydlo
On some matrix diophantine equations
299
Absos Ali Shaikh, Yoon Dae-won and Shyamal Kumar Hui
On quasi-Einstein spacetimes
305
Vol.33, No.1 (2009)
 Author Title Page Makoto Takahashi Representation of normalizer subgroups of maximal tori of the classical group of type C 1 Yuuki Tadokoro A nontrivial algebraic cycle in the Jacobian variety of the Fermat sextic 29 U-Hang Ki, Hiroyuki Kurihara and Ryoichi Takagi Jacobi operators along the structure flow on real hypersurfaces in a nonflat complex space form 39 Tomohiro Kamiyoshii A characterization of finite prehomogeneous vector spaces of D4-type under various scalar restrictions 57 Akira Kamibeppu Subcomplexes of box complexes of graphs 79 Shingo Ibuka, Hirotaka Kikyo, and Hiroshi Tanaka Quantifier elimination for lexicographic products of ordered abelian groups 95 Takefumi Igarashi and Noriaki Umeda Nonexistence of global solutions in time for reaction-diffusion systems with inhomogeneous terms in cones 131 Shinetsu Tamura and Nobuhiro Innami Circular billiards and parallel axiom in convex billiards 147 Hisashi Kojima The lifting of elliptic modular forms to Hilbert modular forms and Petersson inner products 161 Masaya Ouchi A classification of k-simple prehomogeneous vector spaces under some conditions 177
Vol.32, No.2 (2008)
 Author Title Page Huaipeng Chen Characterizations and properties of stratifiable spaces 253 Takamitsu Yamauchi The role of countable paracompactness for continuous selections avoiding extreme points 277 Benharrat Belaïdi and Abdallah El Farissi Relation between differential polynomials of certain complex linear differential equations and meromorphic functions of finite order 291 Akira Kamibeppu Homotopy type of the box complexes of graphs without 4-cycles 307 Yoshio Matsuyama Curvature pinching for Kaehler submanifolds of a complex projective space * 315 Daisuke Dobashi A Characterization of tiling groups 323 Sorin Dragomir and Krishan L. Duggal Indefinite extrinsic spheres 335 Jörg Brüdern Representations of natural numbers as the sum of a prime and a k-th power 349 Taro Kimura Stability of certain reflective submanifolds in compact symmetric spaces 361 Jörg Brüdern, Koichi Kawada and Trevor D. Wooley Additive representation in thin sequences, VII: Restricted moments of the number of representations 383 Naonori Ishii and Katsuaki Yoshida Correction to the automorphism group of a cyclic p-gonal curve 407
Vol.32, No.1 (2008)
 Author Title Page Hideyuki Sakaguchi A Matsumoto-type theorem for linear groups over some completed quantum tori 1 Takashi Teshigawara A condition for algebras associated with a cyclic quiver to be symmetric 27 Juhani Mieminen, Matti Peltola and Pasi Ruotsalainen On Graphs Like Hypercubes 37 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 49 Kazuaki Taira Introduction to boundary value problems of nonlinear elastostatics 67 Hidenori Tanaka Submetacompactness and weak submetacompactness in countable products, 2 139 P.V. Ramakrishnan and T. Lakshmi A note on the fusion of two vertices in a fuzzy graph 155 Chuan Liu, Shou Lin and Lewis D. Ludwig Spaces with a σ-point-discrete weak base 165 Yun-Feng Bai and Takuo Miwa On p-maps and M-maps 179 Shigeki Akiyama, Horst Brunotte, Attila Pethö and Wolfgang Steiner Periodicity of certain piecewise affine planar maps 197
Vol.31, No.2 (2007)
 Author Title Page Luigia Di Terlizzi, Jerzy J. Konderak and Robert Wolak A generalization of the Boothby-Wang theorem 217 Mayuko Kon Ricci recurrent CR submanifolds of a complex space form 233 Saburo Uchiyama A further note on the generalized Josephus problem 253 Hyunjin Lee Riemannian manifolds referred to warped product models 261 Katsumi AKAHORI Remarks on the Clifford index of algebraic curves 271 Katsumi AKAHORI Normal generation of line bundles of degree 2g-2h1(L)-Cliff(X)-k(k = 2,3,4) on Curves 283 Ryuji Sasaki Hermitian Jacobi Forms of index one 301 Kiyoshi Mochizuki On scattering for wave equations with time dependent coefficients 327 Takashi Sakai Transferred kinematic formulae in two point homogeneous spaces 343 Masaya Tomie Group presentation of the Schur-multiplier derived from a loop group 355 Kouhei Miura Construction of harmonic maps between semi-Riemannian spheres 397
Vol.31, No.1 (2007)
 Author Title Page Naonori Ishii and Katsuaki Yoshida The automorphism group of a cyclic p-gonal curve 1 Hiroaki Niikuni Identification of the absent spectral gaps in a class of generalized Kronig-Penney Hamiltonians 39 Aleksander Grytczuk Upper bound for sum divisors function and the Riemann hypothesis 67 Elisabetta Barletta The Lichnerowicz theorem on CR manifolds 77 Takao Hayami Hochschild cohomology ring of the integral group ring of dihedral groups 99 Teruyuki Yorioka Independent families of destructible gaps 129 Hideo Kubo and Sandra Lucente Note on weighted Strichartz estimates for Klein-Gordon equations with potential 143 Shichang Shu Curvature and rigidity of Willmore submanifolds 175 Mitsuhiro Itoh and Takanari Saotome The Serre duality theorem for holomorphic vector bundles over a strongly pseudo-convex manifold 195 Jiryo Komeda and Akira Ohbuchi On double coverings of a pointed non-singular curve with any Weierstrass semigroup 205
Vol.30, No.2 (2006)
 Author Title Page Jan van Mill, Mikhail G.Tkachenko, Vladimir V.Tkachuk, and Richard G. Wilson Local properties and maximal Tychonoff connected spaces 241 Tatsuo Nishitani and Jean Vaillant Smoothly symmetrizable complex systems and the real reduced dimension 259 Masaru Iizuka, Miyuki Maeno and Matsuyo Tomisaki Asymptotic conditional distributions related to one-dimensional generalized diffusion processes 273 Jong Taek Cho Levi-parallel hypersurfaces in a complex space form 329 Taka-aki Tanaka Algebraic independence of modified reciprocal sums of products of Fibonacci numbers 345 Dorota Kowalczyk On the Reissner-Nordstörm-de Sitter type spacetimes 363 Katsumi Nagai The integrated density of stated of one-dimensional random Schrödinger operator with white noise potential and background 383 Vitalij A.Chatyrko Subspaces of the Sorgenfrey line and their products 401 Alessia Ascanelli Gevrey well posedness for a second order weakly hyperbolic equation with non regular in time coefficients 415 Hiroshi Tanaka and Hirokazu Yokoyama Quantifier elimination of the products of ordered Abelian groups 433 Florian Luca and Igor E. Shparlinski On the number of polynomial maps into Zn 439
Vol.30, No.1 (2006)
 Author Title Page Naoya ANDO Semisurfaces and The Equations of Codazzi-mainardi 1 Katsuya Mashimo On the branching theorem of the pair (F4, Spin(9)) 31 Kenji Kuwabara Grassmann Geometry on the groups of rigid motions on the Euclidean and the Minkowski planes 49 Jose Antonio de la Pena and Changchang Xi Hochschild Cohomology of Algebras with Homological Ideals 61 Martha P. Dussan Space-like isothermic surfaces and Grassmannian systems 81 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 103 Katsuhiro Moriya A space of minimal tori with one end and cyclic symmetry 131 Kotaro Mine Universal spaces of non-separable absolute Borel classes 137 Sorin Dragomir and Ermanno Lanconelli On first order linear PDE systems all of whose solutions are harmonic functions 149 Carlos Biasi and Alice Kimie Miwa Libardi Remarks on the Bordism Intersection Map 171 Masato Yaguchi Hyperspaces of finite subsets of non-separable Hilbert spaces 181 De-Jun Feng, Maki Furukado, Shunji Ito and Jun Wu Pisot substitutions and the Hausdorff dimension of boundaries of Atomic surfaces 195 Toshiji Terada Continuity of interpolations 225 Alessandro Languasco CORRIGENDUM TO: On the exceptional set of Hardy-Littlewood's numbers in short intervals 237
Vol.29, No.2 (2005)
Author
Title
Page
 Atsushi Satoh
Scattering for Nonlinear Symmetric Hyperbolic Systems
285
Takaaki Ohkubo and Kunio Sakamoto
CR Einstein-Weyl structures
309
Takao Hayami
On Hochschld cohomology ring of the integral group ring of the quaternion group
363
Alina Iacob
Generalized Tate cohomology
389
Yuki Haraguchi
On Non-commutative extensions of Ga by Gm over an Fp-Algebra
405
Yasuhiro Niitsuma
On the extensions of Wn by G over an Zp-Algebra
437
Jin-ichi Itoh and Fumiko Ohtsuka
Total curvature of noncompact piecewise Riemannian 2-Polyhedra
471
Mukut Mani Tripathi, Tooru Sasahara and Jeong-Sik Kim
On invariant submanifolds of contact metric manifolds
495
U-Hang Ki and Setsuo Nagai
Real hypersurfaces of a nonflat complex space form in terms of the Ricci tensor
511
Aleksander Grytczuk and Barbara Medryk
On a result of Flammenkamp-Luca concerning noncototient sequence
533
Takashi OKAYASU
A Gap theorem for complete four-dimensional manifolds with dW+ = 0
539
Vol.29, No.1 (2005)
Author
Title
Page
 Mami Matsuda
Bifurcation of the Kolmogorov flow with an external friction
1
Models of Peano arithematic as modules over initial segments
19
Zejun Hu and Haizhong Li
A rigidity theorem for hypersurfaces with positive Moebius Ricci curvature in Sn+1
29
Saburô UCHIYAMA
A Note on the Generalized Josephus Problem
49
Takuma Ogawa
Similarities between the trigonometric function and the lemniscate function from arithmetic view point
65
A Construction of Compact Pseudo-Kähler Solvmanifolds with no Kähler Structures
79
Reiko SAKAMOTO
Energy method for numerical analysis
111
Gabriela Putinar
Finite jet determination for biholomorphisms of real-analytic hypersurfaces in CN
147
Shin-ichi YASUTOMI
On A New Algorithm for Inhomogeneous Diophantine Approximation
173
Kaori Yamazaki
Extending pointwise bounded equicontinuous collections of functions
197
Reiko SAKAMOTO
A complete sequence of orthogonal subsets in HM (Rn) and a numerical approximation for boundary value problems
215
Yun Myung Oh and Joon Hyuk Kang
Lagrangian H-umbilical submanifolds in quaternion Euclidean spaces
233
Takahiko FURUYA
On an algebra associated with a circular quiver and its periodic projective bimodule resolution
247
Gastón Andrés García
On Hopf algebras of dimension p3
259
Vol.28, No.2 (2004)
 Author Title Page Joujuu Ohmori Simple components of Q [Sp4(Fq)] 245 E. Ballico Holomorphic vector bundles on quadric hypersurfaces of infinite-dimensional projective spaces 279 Nobuya Suzuki Quantifier elimination results for products of ordered Abelian groups 291 Edgar E. Enochs and Overtoun M. G. Jenda Gorenstein injective modules and Ext 303 Marco Cappiello Fourier integral operators of infinite order and applications to SG-hyperbolic equations 311 Tatsuji Tanaka On arithmetical bounds of Chow-forms 363 Shuan-hong Wang A Maschke Type Theorem for Hopf π-Comodules 377 Masafumi Yoshino Diophantine phenomena in commuting vector fields and diffeomorphisms 389 Filip Defever and R.Rosca Riemannian manifolds structured by a local conformal section 401 Elisabetta Barletta and Sorin Dragomir On the regularity of weak subelliptic F-harmonic maps 417 Reiko SAKAMOTO Restricted energy inequalities and numerical approximations 437 T.Banakh, R.Cauty, K.Trushchak, and L.Zdomskyi On Universality of Finite Products of Polish Spaces 455
Vol.28, No.1 (2004)
Author
Title
Page
 Hideki Takuwa
Analytic smoothing effects for a class of dispersive equations
1
Masakazu Takamura
On the Estimate of the Arithmetic Genus for Normal Two-Dimensional Singularities on Double Coverings
35
On a necessary condition for the wellposedness of the Cauchy problem for some degenerate parabolic equations
75
Shou Lin and Li Yan
A note on spaces with σ-compact-finite weak base
85
Mitsuaki Yato
On the Verschiebung morphism for g(λ)
93
Nobutaka Boumuki
Isotropic immersions and parallel immersions of space forms into space forms
117
Tomonori Noda
Reduciton of locally conformal symplectic manifolds with examples of non-Kähler Manifolds
127
Alessandro Morando
Hypoellipticity and local solvability of pseudolocal continuous linear operators in Gevrey classes
137
H. Murat Tuncali and Vesko Valov
On Finite-dimensional maps
155
Alessandro Languasco
On the exceptional set of Hardy-Littlewood's numbers in short intervals
169
Piotr Dacko
On almost para-cosymplectic manifolds
193
Yanhua Wang and Pu Zhang
Construct bi-Frobenius algebras via quivers
215
Naoya Ando
Parallel curved surfaces
223
Vol.27, No.2 (2003)
 Author Title Page Fumihiko HIROSAWA and Hideo NAKAZAWA Rapid decay of the total energy for dissipative wave equations 217 Atsuko Fujisawa The classification of 3-dimensional hypersurface purely elliptic singularities of (0,1)-type 233 Seiji Hiraba Asymptotic estimates for densities of multi-dimensional stable distributions 261 Tetsuya Hosaka A splitting theorem for CAT (0) spaces with the geodesic extension property 289 Mohamed Tahar Kadaoui ABBASSI and Maati SARIH Killing vector fields on tangent bundles with Cheeger-Gromoll metric 295 Koji Tsushima On a decomposition of Bruhat type for a certain finite group 307 Saburo UCHIYAMA On the generalized Josephus problem 319 J. Hancl and S. Sobkova A general criterion for linearly unrelated sequences 341 Satoru Kikuchi Bound for the Weierstrass weights of points on a smooth plane algebraic curve 359 Taka-aki Tanaka Algebraic independence of Fibonacci reciprocal sums associated with Newton's method 375 Tatsuo Nishitani and Jean Vaillant Smoothly symmetrizable systems and the reduced dimensions II 389 Yoshio Tanaka and Yuuko Shimizu Products of k-spaces, and special countable spaces 405 Yuki Kurokawa and Hiroyuki Takamura A weighted pointwise estimate for two dimensional wave equations and its application to nonlinear systems 417
Vol.27, No.1 (2003)
 Author Title Page Massimo Cicognani The Cauchy Problem for Strictly Hyperbolic Operators with Non-Absolutely Continuous Coefficients 1 Ryszard Deszcz and Marian Hotlos On Some Pseudosymmetry Type Curvature Condition 13 Noriaki Umeda Blow-up and Large Time Behavior of Solutions of a Weakly Coupled System of Reaction-Diffusion Equations 31 Byung Keun Sohn and Dae Hyeon Pahk Analytic Representation of Generalized Tempered Distributions of Exponential Growth by Wavelets 47 Zhou Jianwei Irreducible Clifford Modules 57 Zhou Jianwei Spinors, Calibrations and Grassmannians 77 Antonio J. Di Scala Autoparallel distributions and splitting theorems 99 Charles B. Ragozzine, Jr Hopf Algebras Generated by a Coalgebra 103 Osamu SHUKUZAWA Diagonalization of elements of Freudenthal R-vector space and split Freudenthal R-vector space 113 Kuniko SAKAMOTO Three-Distance Sequences with Three Symbols 129 Katsuro Sakai and Masato Yaguchi Characterizing Manifolds Modeled on Certain Dense Subspaces of Non-Separable Hilbert Spaces 143 Takao Komatsu Simple Continued Fraction Expansions of Some Values of Certain Hypergeometric Functions 161 Kazuya Hayashida Unique continuation for fast diffusion 175 Daniele Del Santo and Martino Prizzi A remark on well-posedness for hyperbolic equations with singular coefficients 189 Toshikazu Miyashita Fixed points subgroups by two involutive automorphisms σ, γ of compact exceptional Lie groups F4, E6 and E7 199
Vol.26, No.2 (2002)
 Author Title Page Masahiro Kaminaga and Fumihiko Nakano Spectral properties of quasiperiodic Kronig-Penney model 205 Aleksander Grytczuk and Jaroslaw Grytczuk Ljunggren's trinomials and matrix equation Ax+Ay=Az 229 Yoshitomo Baba and Hiroyuki Miki On strongly almost hereditary rings 237 Naoya Ando A class of real-analytic surfaces in the 3-Euclidean space 251 Shuan-hong Wang A construction of braided Hopf algebras 269 Masanori Kozaki and Sadahiro Maeda A characterization of extrinsic spheres in a Riemannian manifold 291 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 299 Masakazu Takiguchi An extension of Rauch comparison theorem to glued Riemannian spaces 313 Norifumi Yamatani S4-formula and S2-formula for quasi-triangular biFrobenius algebras 339 Sorin Dragomir and Jun Masamune Cauchy-Riemann orbifolds 351 Reiko Sakamoto Dirichlet-Neumann problem in a domain with piecewise-smooth boundary 387 Kazunari Sugiyama b-Functions of regular simple prehomogeneous vector spaces 407
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 xm + 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