16 articles in this issue
Muhammad Aslam Noor
In this paper, we introduce and study a new class of variational inequalities, which is called generalized set-valued variational inequality. The projection technique is used to establish the equivalence among generalized set-valued variational inequaliti... see more
Carlos C. Peña
The so called fractional deviation operators are introduced. This class of integral transforms appears naturally from the study of iteration of fractional integrals of Riemann-Liouville type. Since B. Ross' formulation on fractional iteration process, amo... see more
Alfonso Tortora
In this note we prove a special case of a conjecture of Mezzetti [5].
Dimitru Popa
Given a boolean algebra A, we say when A verifies the Drewnowski condition. In thepaper we prove that if a boolean algebra verifies the Drewnowski condition then A has the Vitali-Hahn-Saks property. Also other related questions are investigated.
Lubomira Softova
Existence of strong solutions to Cauchy-Dirichlet problem for nonlinear parabolic equation is established. The nonlinear operator is prescribed by Carathéodory's function which satisfies an ellipticity condition due to S. Campanato. The main results are r... see more
K. Bogalska, E. Gojtka, M. Gurdek, L. Rempulska
We study some approximation properties of the Picard and the Gauss-Weierstrass singular integrals of functions of two variables belonging to some exponential weighted spaces. In Sec. 3.1 and 3.2 we give two theorems on the degree of approximation and two ... see more
A. M. Blokhin, I. Z. Merazhov, Yu. L. Trakhinin
Well-posedness of a linear mixed problem on stability of electrohydrodynamic shock waves is investigated in the paper. Stability of shock waves for a hydrodynamic model of movement of a continuum with a volume electric charge is proved.
Giuseppe Zappalà
We characterize all the possible Hilbert functions for 0-dimensional subschemes of an irreducible curve C lying on a smooth quadric surface in the projective 3-space.
Fernando Di Gennaro, Franco Eugeni
In this paper we define an inner product in an affine plane AG(2, q). The odd case, in a canonical rapresentation, is connected with a geometry studied by Tallini. The even case is very new since, the inner product cannot be commutative and we have an ord... see more
Lorenzo Milazzo
An ASQS(v) is a particular Steiner system featuring a set of v vertices and two separate families of blocks, B and G, whose elements have a respective cardinality of 4 and 6. It has the property that any three vertices of X belong either to a B-block or t... see more
Jean Saint Raymond
In this paper we generalize a theorem of Lax-Milgram.
Arturo Popoli
Equations for the best integrability exponent, for monotonic functions in one-dimensional Gehring and Muckenhoupt classes, are unified in more general Reverse Holder Inequality classes. Furthermore, the result is extended by removing the monotonicity assu... see more
Blazej Szmanda
This paper is concerned with the oscillation and asymptotic behaviour of nonoscillatory solutions of nonlinear difference equation of a particular form.
G. Dattoli, S. Lorenzutta, G. Maino, A. Torre
We discuss the theory of multivariable multiindex Bessel functions (B.F.) and Hermite polynomials (H.P.) using the generating function method. We derive addition and multiplication theorems and discuss how generalized H.P. can be exploited as a useful com... see more
Maria Stella Fanciullo
See directly the article.
Renato Maggioni, Alfio Ragusa
We study relationships between Hilbert functions and graded Betti numbers of two space curves C and C_0 bilinked by a sequence of basic double linkages; precisely we obtain bounds for the graded Betti numbers of C by means of the Hilbert functions of the ... see more