Anul XLVII                                                                            2002

 

S T U D I A

UNIVERSITATIS BABEŞ-BOLYAI

 

 

MATHEMATICA

1

 

 

 

  Redacţia: 400084 Cluj-Napoca, Str. M. Kogălniceanu nr. 1 Tel: 405300

 

 

SUMAR – CONTENTS – SOMMAIRE

 

 

Galina Banaru, Some Remarks on Groups of Pointwise Symmetries of

Third-Order Ordinary Differential Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

 

M.B. Banaru, On Spectra of Some Tensors of Six-Dimensional K¨ahlerian

Submanifolds of Cayley Algebra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 11

 

Iluşca Bonta, On Separable Extensions of Group Graded Algebras . . . . . . . . . . . . . . . 19

 

Ana-Maria Croicu, On the Eigenvalue Problem for a Generalized

Hemivariational Inequality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 25

 

Veronica Ana Dârzu, Wheeler-Feynman Problem on a Compact Interval . . . . . . . . .. .43

 

S.R. Kulkarni and Mrs. S.S. Joshi, Certain subclasses of Meromorphic

Univalent Functions with Missing and Two Fixed Points . . . . . . . . . . . . . . . . . . . . . . . 47

 

Young Whan Lee and Gwang Hui Kim, Continuity and Superstability

of Jordan Mappings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

 

Mezei Ildiko Ilona, Relation Between the Palais-Smale Condition and

Coerciveness for Multivalued Mappings . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . 67

 

Aurel Muntean, Common Fixed Point Theorems for Multivalued Operators

on Complete Metric Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

 

Cornel Pintea, The φ-Category of Some Pairs of Products of Manifolds . . . . . . . . . .  . 83

 

Alina Sîntămărian, Picard Pairs and Weakly Picard Pairs of Operators . . . . . . . . .. . .89

 

Arpad Szaz and Jozsef  Turi, Characterizations of Injective Multipliers on

Partially Ordered Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

 

Nicolae Tiţa, On Some Inequalities for the ε-Entropy Numbers . . . . . . . . . . . . . . . . . 121