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Boundary Harnack principle and gradient estimates for fractional Laplacian perturbed by non-local operators
Harmonic function boundary Harnack principle gradient estimate non-local operator Green function Poisson kernel
2016/1/26
Boundary Harnack principle and gradient estimates for fractional Laplacian perturbed by non-local operators.
On the eigenfunctions of the complex Ornstein-Uhlenbeck operators
eigenfunctions complex Ornstein-Uhlenbeck operators
2016/1/20
Starting from the 1-dimensional complex-valued Ornstein-Uhlenbeck process, we present two natural ways to imply the associated eigenfunctions of the 2-dimensional normal Ornstein-Uhlenbeck operators i...
Risk-specific search for risk-defusing operators
risk catastrophe risk-defusing behavior decision making content effects
2015/7/29
According to the concept of “active risk-defusing behavior”, decision makers in risky situations look for additional actions that reduce risk and allow them to favor the more risky alternative. Our st...
Noncommutative Pieri Operators on Posets
Noncommutative algebra symmetric function matrix coefficient hopf hopf algebra algebraic function
2014/12/29
We consider graded representations of the algebra NC of noncommutative symmetric functions on the Z-linear span of a graded poset P. The matrix coefficients of such a representation give a Hopf morphi...
Lattice polytopes, Hecke operators, and the Ehrhart polynomial
Grid polyhedron the singular lattice polyhedron
2014/12/25
Let P be a simple lattice polytope. We define an action of the Hecke operators on E(P), the Ehrhart polynomial of P, and describe their effect on the coefficients of E(P). We also describe how the Bri...
Let F be a real quadratic field with ring of integers O and with class number 1. Let Γ be a congruence subgroup of GL2 (O)GL2() . We describe a technique to compute the action of the Hecke operators o...
Parametric Stein operators and variance bounds
Chernoff inequality Cramer-Rao inequality parameter of interest Stein charac-terization Stein’s method
2013/6/17
Stein operators are differential operators which arise within the so-called Stein's method for stochastic approximation. We propose a new mechanism for constructing such operators for arbitrary (conti...
Additive inverse regression models with convolution-type operators
Inverse regression Additive models Convolution-type operators Mathematical subject codes: primary 62G08 secondary 62G15 62G20
2013/4/27
In a recent paper Birke and Bissantz (2008) considered the problem of nonparametric estimation in inverse regression models with convolution-type operators. For multivariate predictors nonparametric m...
ITU/BDT Brings together regulators and operators for the Americas to discuss issues relating to Telecommunication regulation in the Region
ITU/BDT regulators and operators the Americas Telecommunication regulation the Region
2009/10/19
The pioneering initiative to which the title of this article refers was put into effect in the shape of the Americas Regional Meeting of Operators and Regulators, organized by ITU/BDT in Venezuela fro...
A Study into the Impact of Logistics Sophistication of Brazilian Shippers in the Pattern of Contracting the Services of Logistics Operators
Brazilian shippers 3PL acquisition logistics sophistication
2009/9/25
The main objective of this study is to evaluate the impact of the logistics sophistication of Brazilian shippers on the acquisition pattern of 3PL (third-party logistics) service providers. The concep...
The aim of this paper is to examine the notion of
random operators from a Fr&het space into a Banach one. Characteristic
function, convergence and decomposabitity of random operators
are studied.
Testing Gaussian sequences and asymptotic inversion of Toeplitz operators
Testing Gaussian sequences asymptotic inversion Toeplitz operators
2009/9/23
Testing Gaussian sequences and asymptotic inversion of Toeplitz operators。
On the almost sure approximation and convergence of linear operators in L(2)-spaces
the almost sure approximation convergence of linear operators L(2)-spaces
2009/9/22
We prove some results concerning the almost sure
approximation 01 contractions in L, by projections, unitary operators
or partial isometries. In particular, a unitary operator for which no
subseque...
Operators on martingales,Phi-summing operators, and the contraction pronciple
Operators on martingales Phi-summing operators the contraction pronciple
2009/9/22
For the absolutely @-summing operators T: X + Y
between Banach spaces X and Y we consider martingale inequalities of
the type
where (dR)F='=c, L: (R, f,P) is a martingale difference sequence and
(...
Stopping and stochastic integrals as closable operators
Stopping and stochastic integrals closable operators
2009/9/21
We show that for a von Neumann algebra in standard
form with cyclic and separating tracial vector, and some classes of
noncommutative processes on it, stopping and integrals of these processes
can ...