RYUKYU MATHEMATICAL JOURNAL
ISSN 1344008X (print) Vol.1 〜 30; ISSNL 24346071 (electronic) Vol.31 〜
Department of Mathematical Sciences, Faculty of Science,
University of the Ryukyus
Volume 32 (2019)
Download this volume
Volume 31 (2018)
Download this volume
Volume 30 (2017)
Volume 29 (2016)
Volume 28 (2015)
Volume 27 (2014)
[Errata] The volume number 26 printed on the top of the first page of each article in this volume is wrong. It should be replaced to 27.
Volume 26 (2013)
Volume 25 (2012)
Volume 24 (2011)
Volume 23 (2010)
Volume 22 (2009)
Volume 21 (2008)

Estimation of a finite mixture of multivariate distributions.
Henna, Jogi.

On triangulations of the surface of a cube into planar acute triangles.
Itoh, Jinichi ; Maehara, Hiroshi.

Convergence rates of equiuniform approximation processes of integral operators in Banach spaces.
Nishishiraho, Toshihiko.

Ktheory for amalgams and multiones of $C^*$algebras.
Sudo, Takahiro.

On metaplectic Whittaker functions.
Suzuki, Toshiaki.
Volume 20 (2007)
Volume 19 (2006)

Proper time for spin $1/2$ particles.
Kudaka, Shoju ; Matsumoto, Shuichi.

On a special arrangement of spheres.
Maehara, H. ; Tokushige, N.

Approximation processes of Bernsteintype operators.
Nishishiraho, Toshihiko.

Ktheory of multiamalgams of $C^*$algebras with retractions.
Sudo, Takahiro.

On quasicharacters associated to distinguished metaplectic forms.
Suzuki, Toshiaki.

Gauss sums related to the Hilbert symbol.
Suzuki, Toshiaki.

de Finétti's theorem for $\sigma$finite measures on $\mathbb{R}^\infty\setminus\{0\}$.
Yamauchi, Kana ; Yamazato, Makoto.
Volume 18 (2005)

Almost halving a set of objects in Euclidean space by a hyperplane.
Maehara, Hiroshi.

The degree of convergence of equiuniform summation processes of interpolation type operators in Banach spaces.
Nishishiraho, Toshihiko.

Group $C^*$algebras as inductive limits: a survey.
Sudo, Takahiro.

Intersecting families  uniform versus weighted.
Tokushige, Norihide.
Volume 17 (2004)

On volumemeasure as hemimetrics.
Deza, Michel ; Dutour, Mathiew ; Maehara, Hiroshi.

A quantum theoretical formulation of proper time for spin $1/2$ particles.
Kudaka, Shoju ; Matsumoto, Shuichi.

The degree of interpolation type approximation processes for vectorvalued functions.
Nishishiraho, Toshihiko.

Around the stable rank of discrete group $C^*$algebras.
Sudo, Takahiro.

On supercuspidal representations of a metaplectic group.
Suzuki, Toshiaki.

A frog's random jump and the Pólya identity.
Tokushige, Norihide.
Volume 16 (2003)
Volume 15 (2002)

Stable nonGaussian time series.
Chen, Chunhang.

A partial order on the symmetric groups defined by $3$cycles.
Maeda, Takashi.

A simple proof of the existence of nonobtuse triangulation for polygons.
Maehara, Hiroshi.

Structure of the $C^*$algebras of solvable Lie groups of full triangular matrices.
Sudo, Takahiro.

A maximal isotropic ring of a local field and spherical functions on a metaplectic group.
Suzuki, Toshiaki.
Volume 14 (2001)

Commutative sets on orbits for embedded flows.
Kinjo, Yoshiyuki.

On Schrödinger's variation principle.
Kudaka, Shoju ; Matsumoto, Shuichi.

Determinantal equations and singular loci of duals of Grassmannians.
Maeda, Takashi.

Isoperimetric theorem for spherical polygons and the problem of $13$ spheres.
Maehara, Hiroshi.

On the $\pi$Frattini subgroup.
Nakazato, Haruo ; Kawamitsu, Komina.

Survey on the stable rank of group $C^*$algebras of twostep nilpotent groups.
Sudo, Takahiro.

Asymptotic behaviors on the small parameter exit problems and the singularly perturbation problems.
Sugiura, Makoto.

The cohomology of classifying space of fibrations with elliptic fiber is infinite dimensional.
Yamaguchi, Toshihiro.
Volume 13 (2000)

Nonstandard proof of spectral theorem.
Hinokuma, Takanori.

Characterization for the party algebras.
Kosuda, Masashi.

Generic $G$linear maps.
Maeda, Takashi.

On families of nonoverlapping balls.
Maehara, Hiroshi.

Continuous images of compact ordered spaces.
Maehara, Ryuji ; Tokumoto, Hirokazu.

Negative characters on the degree of the best approximation in Banach spaces.
Nishishiraho, Toshihiko.

Survey on the rank and structure theory of group $C^*$algebras of Lie groups.
Sudo, Takahiro.

On semigroups corresponding to storage processes. II.
Yamazato, Makoto.
Volume 12 (1999)

Hamiltonian systems by an ideal of integrals.
Kinjo, Yoshiyuki ; Miyagi, Yashushi.

Minimal free resolution of the third Veronese subring of three variables.
Maeda, Takashi.

Arranging solid balls on a table to make a $k$component link.
Maehara, Hiroshi ; Noha, Hiroshi.

Proper time as an operator.
Matsumoto, Shuichi.

General inverse problems for the best approximation in Banach spaces.
Nishishiraho, Toshihiko.

Structure of group $C^*$algebras of Lie semidirect products of $\mathbb{R}$ or $\mathbb{C}$ by Lie groups.
Sudo, Takahiro.

Examples of elliptic models which are oddly generated and don't have positive weights.
Yamaguchi, Toshihiro.
Volume 11 (1998)

A realization of twisted Grassmann varieties.
Maeda, Takashi.

Complete noncommutative integration of Hamiltonian systems.
Kinjo, Yoshiyuki ; Miyagi, Yashushi.

Remarks on the universal covering space of the space of rational functions.
Kamiyama, Yasuhiko.

A proof of the existence of complexvalued symmetric $\alpha$stable random measures.
Chen, Chunhang.

On semigroups corresponding to storage processes.
Yamazato, Makoto.

Estimates for the degree of best approximation in Banach spaces.
Nishishiraho, Toshihiko.

$\theta$Frattini subgroups of finite solvable groups.
Nakazato, Haruo ; Tamashiro, Manabu.

Vector fields and quadratic surfaces.
Maehara, Hiroshi.
Volume 10 (1997)
Volume 9 (1996)
Volume 8 (1995)

Theoretical results and empirical studies on the forecasting accuracy of the Holt's linear exponential smoothing method.
Chen, Chunhang.

Projecting a finite pointset into a hyperplane.
Frankl, P. ; Maehara, H.

An infinitesimally rigid unitbarframework in the plane which contains no triangle.
Maehara, Hiroshi ; Chinen, Kenji.

The order of convergence for positive approximation processes.
Nishishiraho, Toshihiko.

Unitary highest weight modules of a Jacobi group.
Suga, Shuichi.

Correction to: "An analogue of a theorem of T. F. Havel" [Ryukyu Math. J. 6 (1993), 6977].
Toma, Tsuguyoshi.
Volume 7 (1994)
Volume 6 (1993)

A note on partial differential equations and a distribution on manifolds.
Kinjo, Yoshiyuki.

Angles in lattice polygons.
Maehara, Hiroshi.

Approximation by linear sums of bounded linear operators.
Nishishiraho, Toshihiko.

Fundamental unit of the real quadratic field $\boldsymbol{Q}(\sqrt{v(v^3+1)(v^6+3v^3+3)})$.
Takaku, Akira ; Yoshimoto, ShinIchirou.

An analogue of a theorem of T. F. Havel.
Toma, Tsuguyoshi.

A note on endomorphism rings of $H$separable extensions.
Yamashiro, Yasukazu.
Volume 5 (1992)

A remark on theorem of Jarnik.
Hinokuma, Takanori ; Shiga, Hiroo.

An elementary proof of a theorem of T. F. Havel.
Kamiyama, Yasuhiko.

The expression of an integral manifold of a $C^\infty$ $k$dimensional distribution and its application.
Kinjo, Yoshiyuki.

Distance graphs in Euclidean space.
Maehara, Hiroshi.

Generalized states and measuring processes for continuous observables.
Matsumoto, Shuichi.

Approximation processes of quasipositive linear operators.
Nishishiraho, Toshihiko.
Volume 4 (1991)

An estimator of the number of components of finite mixtures of discrete distributions.
Henna, Jōgi.

Differential forms of a motion on $S^{n1}$.
Kinjo, Yoshiyuki.

A note on monomorphisms of irrational rotation $C^∗$algebras into their matrix algebras.
Kodaka, Kazunori.

On a special case of Connelly's suspension theorem.
Maehara, Hiroshi.

Approximation by convolution operators in Banach spaces.
Nishishiraho, Toshihiko.

A realization of irreducible highest weight modules of a certain Lie algebra.
Suga, Shuichi.
Volume 3 (1990)

Nonnormal hyperplane section of Fano threefolds of first kind with index two.
Furushima, Mikio.

On the rationality of the invariant field under the action of $SL(3,\mathbb{C})$ with signature $(2,1)$.
Maeda, Takashi.

Another "matchstick" geometry.
Maehara, Hiroshi.

Local cutpoints in the connected continuous images of compact ordered spaces. II.
Maehara, Ryuji.

Saturation of iterations of multiplier operators in Banach spaces.
Nishishiraho, Toshihiko.
Volume 2 (1989)

Estimation of finite mixtures of discrete distributions.
Henna, Jogi.

Nonreflexive plane curves of a certain type. II.
Homma, Masaaki.

On the rigidity of complete multipartite graphs.
Maehara, Hiroshi.

Saturation of iterations for approximation processes on Banach spaces.
Nishishiraho, Toshihiko.
Volume 1 (1988)

On the existence of a versal family of complex structures over weakly pseudoconvex domains.
Akahori, Takao.

Nonreflexive plane curves of a certain type.
Homma, Masaaki.

Independent balls and unit neighborhood graphs.
Maehara, Hiroshi.

Formations of finite $\pi$solvable groups.
Nakazato, Haruo ; Ohama, Hiroshi.

Convergence of positive linear functionals.
Nishishiraho, Toshihiko.