Le Matematiche (Dipartimento di Matematica e Informatica, Università degli Studi di Catania)
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A variant on Miranda-Talenti estimate
Get PDFIn this note we prove formula (1.1),which extends to functions in W^{2,2}(Ω) with zero normal derivative the analogous formula (1.2) by G. Talenti ([5]) on functions with zero trace. To prove (1.1) we use the technique introduced by C. Miranda in [3] and give a geometrical interpretation of his results (formula (2.17))
Stochastic games with risk sensitive pay off for n-players
No full textIn this paper we extend some of the results of the authorson stochastic differential gamesto the case of risk sensitive payoffs
Real divisors on real curves
Get PDFLet C be an affine or projective smooth real algebraic curve, having a non-empty real part. Then every divisor E on C, which is linearly equivalent to its conjugate E^c , is also equivalent to a divisor supported on a set of real points of C
Characterization of non-connected Buchsbaum curves in P^n
Get PDFIn this paper we characterize non-connected Buchsbaum curves C in P^n and we give a sharp bound for the number of disjoint connected components of C
The asymptotic representation of the fundamental matrix of a discrete system
Get PDFIn this paper by using the notion of discrete dichotomies, an asymptotic representation of Φ, the fundamental matrix of the linear difference equation y(n + 1) = (A(n) + B(n))y(n) is given
Some families of mixed generating functions and generalized polynomials
Get PDFThe main object of this paper is to show that combined use of the Lagrange expansion and certain operational techniques allows to derive mixed generating functions of various families of generalized polynomials in a straightforward manner. Relevant connections with many other recent works on this subject are also discussed
Boundary regularity results for non-variational basic elliptic systems
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The class of hypergroups in which the hearth is in the set of identities
No full textIn this paper, the hypergroups, for which the heart is the set of identities, are studied
Some new results on a Lavrentieff phenomenon for problems of homogenization with constraints on the gradient
Get PDFIn this paper we analyze, in the context of a Lavrentieff phenomenon, the process of homogenization for Dirichlet problems