Search Results - "Bally, Vlad"
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A PROBABILISTIC INTERPRETATION OF THE PARAMETRIX METHOD
Published in The Annals of applied probability (01-12-2015)“…In this article, we introduce the parametrix technique in order to construct fundamental solutions as a general method based on semigroups and their…”
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A generic construction for high order approximation schemes of semigroups using random grids
Published in Numerische Mathematik (01-08-2021)“…Our aim is to construct high order approximation schemes for general semigroups of linear operators P t , t ≥ 0 . In order to do it, we fix a time horizon T…”
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CONVERGENCE AND REGULARITY OF PROBABILITY LAWS BY USING AN INTERPOLATION METHOD
Published in The Annals of probability (01-03-2017)“…Fournier and Printems [Bernoulli 16 (2010) 343-360] have recently established a methodology which allows to prove the absolute continuity of the law of the…”
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Total variation distance between a jump-equation and its Gaussian approximation
Published in Stochastic partial differential equations : analysis and computations (2022)“…We deal with stochastic differential equations with jumps. In order to obtain an accurate approximation scheme, it is usual to replace the “small jumps” by a…”
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Using moment approximations to study the density of jump driven SDEs
Published in Electronic journal of probability (01-01-2022)“…In order to study the regularity of the density of a solution of a infinite activity jump driven stochastic differential equation we consider the following…”
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Integration by parts formula and applications to equations with jumps
Published in Probability theory and related fields (01-12-2011)“…We establish an integration by parts formula in an abstract framework in order to study the regularity of the law for processes arising as the solution of…”
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Regularization properties of the 2D homogeneous Boltzmann equation without cutoff
Published in Probability theory and related fields (01-12-2011)“…We consider the 2-dimensional spatially homogeneous Boltzmann equation for hard potentials. We assume that the initial condition is a probability measure that…”
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A QUANTIZATION TREE METHOD FOR PRICING AND HEDGING MULTIDIMENSIONAL AMERICAN OPTIONS
Published in Mathematical finance (01-01-2005)“…We present here the quantization method which is well‐adapted for the pricing and hedging of American options on a basket of assets. Its purpose is to compute…”
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Approximation for the invariant measure with applications for jump processes (convergence in total variation distance)
Published in Stochastic processes and their applications (01-10-2024)“…In this paper, we establish an abstract framework for the approximation of the invariant probability measure for a Markov semigroup. Following Pagès and…”
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Integration by Parts Formula for Locally Smooth Laws and Applications to Sensitivity Computations
Published in The Annals of applied probability (01-02-2007)“…We consider random variables of the form $F=f(V_{1},\ldots ,V_{n})$, where f is a smooth function and $V_{i}$, $i\in {\Bbb N}$, are random variables with…”
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Error analysis of the optimal quantization algorithm for obstacle problems
Published in Stochastic processes and their applications (01-07-2003)“…In the paper Bally and Pagès (2000) an algorithm based on an optimal discrete quantization tree is designed to compute the solution of multi-dimensional…”
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UPPER BOUNDS FOR THE FUNCTION SOLUTION OF THE HOMOGENEOUS 2D BOLTZMANN EQUATION WITH HARD POTENTIAL
Published in The Annals of applied probability (01-06-2019)“…We deal with ft (dv), the solution of the homogeneous 2D Boltzmann equation without cutoff. The initial condition f₀(dv) may be any probability distribution…”
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The central limit theorem for a nonlinear algorithm based on quantization
Published in Proceedings of the Royal Society. A, Mathematical, physical, and engineering sciences (08-01-2004)“…In a series of papers we have presented an algorithm based on quantization for pricing American options. More generally, this amounts to solving numerically an…”
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Upper bounds for the function solution of the homogenuous 2D Boltzmann equation with hard potential
Published in The Annals of applied probability (2019)“…We deal with $f_{t}(dv),$ the solution of the homogeneous $2D$ Boltzmannequation without cutoff. The initial condition $f_{0}(dv)$ may be anyprobability…”
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TOTAL VARIATION DISTANCE BETWEEN STOCHASTIC POLYNOMIALS AND INVARIANCE PRINCIPLES
Published in The Annals of probability (01-11-2019)“…The goal of this paper is to estimate the total variation distance between two general stochastic polynomials. As a consequence, one obtains an invariance…”
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Asymptotic development for the CLT in total variation distance
Published in Bernoulli : official journal of the Bernoulli Society for Mathematical Statistics and Probability (01-11-2016)“…The aim of this paper is to study the asymptotic expansion in total variation in the central limit theorem when the law of the basic random variable is locally…”
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Non universality for the variance of the number of real roots of random trigonometric polynomials
Published in Probability theory and related fields (01-08-2019)“…In this article, we consider the following family of random trigonometric polynomials p n ( t , Y ) = ∑ k = 1 n Y k 1 cos ( k t ) + Y k 2 sin ( k t ) for a…”
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Construction of Boltzmann and McKean–Vlasov type flows (the sewing lemma approach)
Published in The Annals of applied probability (01-10-2023)“…We are concerned with a mixture of Boltzmann and McKean–Vlasov-type equations, this means (in probabilistic terms) equations with coefficients depending on the…”
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On the distances between probability density functions
Published in Electronic journal of probability (11-12-2014)Get full text
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REGULARITY OF WIENER FUNCTIONALS UNDER A HÖRMANDER TYPE CONDITION OF ORDER ONE
Published in The Annals of probability (01-05-2017)“…We study the local existence and regularity of the density of the law of a functional on the Wiener space which satisfies a criterion that generalizes the…”
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