ACTA SCIENTIARUM MATHEMATICARUM (Szeged)

Parameterization of minimal points of some convex sets of matrices

T. Ando

Improper filtrations for $C^*$-algebras: spectra of unilateral tridiagonal operators

William Arveson

Sturm--Liouville problems with coefficients which depend analytically on the eigenvalue parameter

F. V. Atkinson, H. Langer, R. Mennicken

Unicellular and non-unicellular dissipative operators

Aharon Atzmon

Commuting power-bounded operators

Hari Bercovici

Automorphism invariance of the operator-valued Poisson transform

R. E. Curto, F.-H. Vasilescu

Uniqueness of multi-variate canonical models

R. G. Douglas, C. Foias

Spectra of analytic Toeplitz tuples on Bergman spaces

Jörg Eschmeier, Mihai Putinar

Intertwining dilations, intertwining extensions and causality

C. Foias, C. Gu, A. Tannenbaum

Diagonal operators: dilation, sum and product

Che Kao Fong, Pei Yuan Wu

Some norm inequalities and operator inequalities via the Furuta inequality

Takayuki Furuta

A Riccati equation and ground states of some unidimensional Schrödinger operators

Jean-Pierre Kahane

On the reducing essential spectra of contractions

László Kérchy

On the joint essential spectrum of commuting operators

Vladimír Müller

On Stone's theorem in Banach space

B. Nagy

Application of a lemma of Riesz and Sz.-Nagy

Dénes Petz

Pure subnormality and spectral stability

C. R. Putnam

Operator extensions on Hilbert space

Zoltán Sebestyén

The Sz.-Nagy ``théorème principal'' extended. Application to subnormality

F. H. Szafraniec

Injection of unilateral shifts into contractions

Katsutoshi Takahashi

A note on the augmentation ideal of certain rings associated with free groups

Dan Voiculescu

On complementary spaces and multipliers for Walsh series

S. Baron, F. Schipp

Sampling expansions for Jacobi Functions and their applications

Paul L. Butzer, Gabriele Schöttler

$D$-completions of Pervin-type quasi-uniformities

Ákos Császár

A rate of convergence for coupon collectors

Sándor Csörgő

On projections into the space of trigonometric polynomials

G. Halász

On the stability of the zero solution of nonlinear second order differential equations

László Hatvani

On the pointwise controllability of circular membranes

I. Joó

Generalizations of some theorems of Mulholland concerning Dirichlet series

László Leindler

How to discretize a logarithmic potential?

Doron S. Lubinsky, Vilmos Totik

Mean convergence of Lagrange interpolation on arbitrary system of nodes

G. Mastroianni, P. Vértesi

Integrability theorems for trigonometric series

Ferenc Móricz

Strong approximation and classes of functions

J. Németh

Optimal order of convergence of Hermite--Fejér interpolation for general systems of nodes

J. Szabados

The characterization of bounded linear functionals on the space of almost everywhere $|I|_\lambda$ ($\lambda>1$) convergent trigonometric series

István Szalay

A homogeneity property of the $Z^2$ random walk

P. Révész

Bemerkungen zur Konvergenztheorie der mehrfachen Reihen

Károly Tandori

On Hölder's theorem that $\Gamma(x)$ does not satisfy algebraic differential equation

Vilmos Totik

On finite isomorphically complete systems of tree automata

Ferenc Gécseg, Balázs Imreh

On permanent identities

B. Gyires

On the number of pairs of polynomials with given resultant or given semi-resultant

K. Győry

Parallelismus auf Liegruppen

M. L. Husty, P. T. Nagy

Some remarks on generalized number systems

K.-H. Indlekofer, I. Kátai, P. Racsko

On weakly and weakly* continuous elements in Jordan triples

J. M. Isidro, L. L. Stachó

On pseudoconvex functions

Sándor Komlósi

Spectral properties of the Cartan matrices

Adam Korányi

Nonfinitely based finite groupoids generating minimal varieties

Ágnes Szendrei

On embeddability into a semidirect product of an orthodox semigroup by a group

Mária B. Szendrei

The asymptotic distribution of the total heights of random rooted trees

Lajos Takács

Some computational problems related to the functional dependency in the relational datamodel

János Demetrovics, Vu Duc Thi