Volume 56, Number 4, December 2011

S T U D I A

                UNIVERSITATIS BABEŞ-BOLYAI

                               MATHEMATICA

CONTENTS

PURE MATHEMATICS

Peter Danchev, Units in abelian group algebras over indecomposable rings . . . . . . . . . . . . . . . . . . . . . 3

Loredana Biacino, On the Hausdorff dimension of the graph of a Weierstrass type function . . . . . . . . . 7

George A. Anastassiou, Univariate inequalities based on Sobolev representations . . . . . . . . . . . . . . . . 19

Murat Caglar Halit Orhan and Erhan Deniz, Coefficient bounds for certain classes

of multivalent functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Virgil Pescar, The univalence and the convexity properties for a new integral operator . . . . . . .. . . . . . .65

Srikandan Sivasubramanian and Chellakutti Ramachandran, A class of uniformly convex functions

involving a differential operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Nagarajan Subramanian and Umakanta Misra, The double Orlicz sequence spaces

χ²_M (p) and Λ²_M(p) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

Bruno de Malafosse, α−tauberian results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Sharifa Al-Sharif, On best simultaneous approximation in operator and function spaces . . . . . . . . . . . . 113

APPLIED MATHEMATICS

Bivas Dinda T.K. Samanta and Iqbal H. Jebril, Fuzzy anti-bounded linear operators . . . . .. . . . . . . . . . 123

Anton S. Muresan, Transversality and separation of zeroes in second order differential equations . . . . .139

Codruta Stoica and Mihail Megan, On (h, k)–trichotomy for skew-evolution semiflows

in Banach spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147

Viorica Muresan, Some results on the solutions of a functional-integral equation . . . . . . . . . . . . . .. . . . 157

Sorin Budisan, Generalizations of Krasnoselskii’s fixed point theorem in cones . . . . . . . . . . . . . . . . . . .165

ADDENDUM

Biagio Ricceri, Addendum to ”A multiplicity result for nonlocal problems involving

nonlinearities with bounded primitive” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Book reviews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175