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2001/59/1-2

2001/59/1-2 (1) — DOI: 10.5486/PMD.2001.2281 — pp. 1-7
Some criteria for dynamical systems to be nonchaotic

Xiao-Song Yang

2001/59/1-2 (2) — DOI: 10.5486/PMD.2001.2340 — pp. 9-16
A conjecture of Erdős concerning inequalities for the Euler totient function

A. Grytczuk, F. Luca and M. Wójtowicz

2001/59/1-2 (3) — DOI: 10.5486/PMD.2001.2396 — pp. 17-23
On the total curvature of hypersurfaces in negatively curved Riemannian manifolds

Albert Borbély

2001/59/1-2 (4) — DOI: 10.5486/PMD.2001.2409 — pp. 25-33
Oscillation criteria for second order neutral functional differential equations

Jozef Džurina and Štefan Kulcsár

2001/59/1-2 (5) — DOI: 10.5486/PMD.2001.2411 — pp. 35-43
Group valued $q$-additive functions on polynomial values

I. Kátai and M. V. Subbarao

2001/59/1-2 (6) — DOI: 10.5486/PMD.2001.2415 — pp. 45-50
Subgroups of infinite triangular matrices containing diagonal matrices

Waldemar Hołubowski

2001/59/1-2 (7) — DOI: 10.5486/PMD.2001.2418 — pp. 51-56
A generalization of Lucas' congruence for $q$-binomial coefficients

Tianxin Cai

2001/59/1-2 (8) — DOI: 10.5486/PMD.2001.2429 — pp. 57-78
The discrete Tchebycheff transformation in certain spaces of sequences and its applications

J. J. Betancor, M. Linares and J. M. R. Méndez-Pérez

2001/59/1-2 (9) — DOI: 10.5486/PMD.2001.2435 — pp. 79-88
Automatic continuity of homomorphisms into normed quadratic algebras

Anton Cedilnik and Angel Rodríguez Palacios

2001/59/1-2 (10) — DOI: 10.5486/PMD.2001.2443 — pp. 89-102
Framed $(2M+3)$-dimensional manifolds endowed with a vertical cyclic connection structure

Filip Defever and Radu Rosca

2001/59/1-2 (11) — DOI: 10.5486/PMD.2001.2449 — pp. 103-109
On R. Baer's generalized hyperbolic planes

Victor Pambuccian

2001/59/1-2 (12) — DOI: 10.5486/PMD.2001.2452 — pp. 111-119
A generalization of the Hyers—Ulam—Rassias stability of the beta functional equation

Gwang Hui Kim

2001/59/1-2 (13) — DOI: 10.5486/PMD.2001.2453 — pp. 121-146
Multiple solutions for semilinear hemivariational inequalities at resonance

Leszek Gasiński and Nikolaos S. Papageorgiou

2001/59/1-2 (14) — DOI: 10.5486/PMD.2001.2466 — pp. 147-159
Splittings of operators and generalized inverses

Dragan S. Djordjević and Predrag S. Stanimirović

2001/59/1-2 (15) — DOI: 10.5486/PMD.2001.2468 — pp. 161-173
Right Bol loops with a finite dimensional group of multiplications

Ekkehart Winterroth

2001/59/1-2 (16) — DOI: 10.5486/PMD.2001.2469 — pp. 175-186
A joint limit theorem for zeta-functions attached to certain cusp forms

A. Laurinčikas

2001/59/1-2 (17) — DOI: 10.5486/PMD.2001.2493 — pp. 187-193
On a problem of S. Mazur

Antal Járai

2001/59/1-2 (18) — DOI: 10.5486/PMD.2001.2500 — pp. 195-202
A characterization of the Janko group $J_1$ by an active fragment of its character table

V. A. Belonogov

2001/59/1-2 (19) — DOI: 10.5486/PMD.2001.2501 — pp. 203-219
Cesaro means of Vilenkin—Fourier series

P. Simon

2001/59/1-2 (20) — DOI: 10.5486/PMD.2001.2508 — pp. 221-234
Modules with comparability

Miguel Ferrero and Alveri Sant'Ana

2001/59/1-2 (21) — DOI: 10.5486/PMD.2001.2570 — pp. 235-242
Normal subgroups of the group of units in group rings of torsion groups

A. A. Bovdi and C. Polcino Milies

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