Results 21 to 30 of about 289,521 (209)

On a pseudo-Volterra nonhomogeneous integral equation

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
In this paper the issues of the solvability of a pseudo-Volterra nonhomogeneous integral equation of the second kind are studied. The solution to the corresponding homogeneous equation and the classes of the uniqueness of the solution are found in [1 ...
M.T. Kosmakova   +3 more
doaj   +1 more source

Samplers and Extractors for Unbounded Functions [PDF]

open access: yes, 2019
Blasiok (SODA\u2718) recently introduced the notion of a subgaussian sampler, defined as an averaging sampler for approximating the mean of functions f from {0,1}^m to the real numbers such that f(U_m) has subgaussian tails, and asked for explicit ...
Agrawal, Rohit
core   +2 more sources

A strong geometric hyperbolicity property for directed graphs and monoids [PDF]

open access: yes, 2014
We introduce and study a strong "thin triangle"' condition for directed graphs, which generalises the usual notion of hyperbolicity for a metric space.
Gray, Robert, Kambites, Mark
core   +2 more sources

Interpolation and harmonic majorants in big Hardy-Orlicz spaces [PDF]

open access: yes, 2006
Free interpolation in Hardy spaces is caracterized by the well-known Carleson condition. The result extends to Hardy-Orlicz spaces contained in the scale of classical Hardy spaces $H^p$, $p>0$.
A. G. Naftalevič   +16 more
core   +5 more sources

Super-replication of European Options with Convex Payoff under Proportional Transaction Costs

open access: yesZeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, 2018
The paper examines the super-replication of contingent claims in a discrete time financial market with proportional transaction costs. The sole assumption on stock price dynamics is that the returns are bounded.
Agnieszka Rygiel
doaj   +1 more source

Continuity properties of integral kernels associated with Schroedinger operators on manifolds [PDF]

open access: yes, 2006
For Schroedinger operators (including those with magnetic fields) with singular (locally integrable) scalar potentials on manifolds of bounded geometry, we study continuity properties of some related integral kernels: the heat kernel, the Green function,
Bruening, Jochen   +2 more
core   +3 more sources

Nonlocal elliptic equations in bounded domains: a survey [PDF]

open access: yes, 2015
In this paper we survey some results on the Dirichlet problem \[\left\{ \begin{array}{rcll} L u &=&f&\textrm{in }\Omega \\ u&=&g&\textrm{in }\mathbb R^n\backslash\Omega \end{array}\right.\] for nonlocal operators of the form \[Lu(x)=\textrm{PV}\int_ ...
Ros-Oton, Xavier
core   +4 more sources

Classification of bounded Baire class $\xi$ functions

open access: yes, 2016
Kechris and Louveau showed that each real-valued bounded Baire class 1 function defined on a compact metric space can be written as an alternating sum of a decreasing countable transfinite sequence of upper semi-continuous functions. Moreover, the length
Kiss, Viktor
core   +1 more source

Generalization of I.Vekua's integral representations of holomorphic functions and their application to the Riemann–Hilbert–Poincaré problem

open access: yesJournal of Function Spaces and Applications, 2011
I. Vekua’s integral representations of holomorphic functions, whose m-th derivative (m≥0) is Hӧlder-continuous in a closed domain bounded by the Lyapunov curve, are generalized for analytic functions whose m-th derivative is representable by a Cauchy ...
Vakhtang Kokilashvili   +1 more
doaj   +1 more source

Rigidity of escaping dynamics for transcendental entire functions

open access: yes, 2008
We prove an analog of Boettcher's theorem for transcendental entire functions in the Eremenko-Lyubich class B. More precisely, let f and g be entire functions with bounded sets of singular values and suppose that f and g belong to the same parameter ...
A Avila   +32 more
core   +3 more sources

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