UNIVERSITATIS BABEŞ-BOLYAI
MATHEMATICA
3
Redacţia: 400084 Cluj-Napoca, Str. M. Kogălniceanu nr. 1 Tel: 405300
Wolfgang W. Breckner, Professor Ştefan Cobzaş at his 60th Anniversary
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Wolfgang W. Breckner and Tiberiu Trif, Equicontinuity and Singularities of Families
of
Monomial Mappings . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . 11
Edwin Castro and Vernor Arguedas, Periodic and Almost Periodic Functions .. . . . . .31
Gh. Coman, A. Oprişan and I. Somogyi, Optimal Quadrature Formulas with Respect
to
the Error . . . . . . .
. . . . . . . . . . . .. . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Rodica Covaci, Homomorphs
with Respect to which any Hall π-Subgroup
of
a Finite π-Solvable Group is a Projector . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .51
Adrian Diaconu, On Certain Properties of the Frechet Differential of Higher
Order . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. .61
D. Inoan and J. Kolumban, Two Existence Results for Variational Inequalities .
.. . . . 85
Costică Mustăţa, On the Converses of the Reduction Principle in Inner
Product
Spaces . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. . . . . . . . 97
Ion Păvăloiu, Bilateral Approximations of Solutions of Equations by Order
Three
Steffensen-Type
Methods . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
105
Ioan A. Rus, Metric
Space with Fixed Point Property with Respect
to
Contractions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .
. . . . . . . . . . . . . . . . . . 115
Book Reviews . . . . . . . . . . . . . . . .
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122