Separation via quadratic functions. (Summary).
Set-valued and fuzzy stochastic integral equations driven by semimartingales under Osgood condition
We analyze the set-valued stochastic integral equations driven by continuous semimartingales and prove the existence and uniqueness of solutions to such equations in the framework of the hyperspace of nonempty, bounded, convex and closed subsets of the Hilbert space L2 (consisting of square integrable random vectors). The coefficients of the equations are assumed to satisfy the Osgood type condition that is a generalization of the Lipschitz condition. Continuous dependence of solutions with respect...
Set-valued random differential equations in Banach space
We consider the problem of the existence of solutions of the random set-valued equation: (I) , t ∈ [0,T] -a.e.; X₀ = U p.1 where F and U are given random set-valued mappings with values in the space , of all nonempty, compact and convex subsets of the separable Banach space E. Under certain restrictions on F we obtain existence of solutions of the problem (I). The connections between solutions of (I) and solutions of random differential inclusions are investigated.
Sharp power mean bounds for the combination of Seiffert and geometric means.
Singularité analytique et perturbation singulière en dimension 2
Singularité réelle isolée
Soit un germe de fonction analytique , à singularité isolée en . Nous nous proposons d’étudier le développement asymptotique des intégrales de formes , de degré , sur les fibres de . Nous montrons que ces développements asymptotiques peuvent être décrits à partir de l’action de la monodromie sur le groupe de la fibre de Milnor complexe.
Solution manifolds for systems of differential equations.
Solution of a problem of M. Katz concerning the optimization of a functional
Solutions d'un système d'équations analytiques réelles et applications
On démontre que toute solution formelle d’un système d’équations analytiques réelles (resp. polynomiales réelles) , se relève en une solution homotope à une solution analytique (resp. à une solution de Nash) aussi proche que l’on veut de pour la topologie de Krull. On utilise ce théorème pour démontrer l’algébricité (ou l’analyticité) de certains idéaux de (ou ), et aussi pour construire des déformations analytiques de germes d’ensembles analytiques en germes d’ensembles de Nash.
Some aspects of convex functions and their applications.
Some classes of infinitely differentiable functions
For nonquasianalytical Carleman classes conditions on the sequences and are investigated which guarantee the existence of a function in such that u(n)(a) = bn, bnKn+1Mn, n = 0,1,..., aJ. Conditions of coincidence of the sequences and are analysed. Some still unknown classes of such sequences are pointed out and a construction of the required function is suggested. The connection of this classical problem with the problem of the existence of a function with given trace at the boundary...
Some comparison inequalities for generalized Muirhead and identric means.
Some considerations on the monotonicity property of power means.
Some counterexamples in -adic analysis
Some dynamic inequalities applicable to partial integrodifferential equations on time scales
The main objective of the paper is to study explicit bounds of certain dynamic integral inequalities on time scales. Using these inequalities we prove the uniqueness of some partial integrodifferential equations on time scales.
Some Fine Properties of BV Functions on Wiener Spaces
In this paper we define jump set and approximate limits for BV functions on Wiener spaces and show that the weak gradient admits a decomposition similar to the finite dimensional case. We also define the SBV class of functions of special bounded variation and give a characterisation of SBV via a chain rule and a closure theorem. We also provide a characterisation of BV functions in terms of the short-time behaviour of the Ornstein-Uhlenbeck semigroup following an approach due to Ledoux.
Some fixed points theorems for multi-valued weakly uniform increasing operators
Some general means
Some inequalities connected with the exponential function
The paper is devoted to some functional inequalities related to the exponential mapping.
Some inequalities for a class of generalized means.