Displaying similar documents to “Diffusions with a nonlinear irregular drift coefficient and probabilistic interpretation of generalized Burgers' equations”

Time-homogeneous diffusions with a given marginal at a random time

Alexander M. G. Cox, David Hobson, Jan Obłój (2011)

ESAIM: Probability and Statistics

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We solve explicitly the following problem: for a given probability measure , we specify a generalised martingale diffusion () which, stopped at an independent exponential time , is distributed according to . The process ( ) is specified its speed measure . We present two heuristic arguments and three proofs. First we show how the result can be derived from the solution of [Bertoin and Le Jan, 20 (1992) 538–548.] to the Skorokhod embedding problem. Secondly, we give a...

On ℝd-valued peacocks

Francis Hirsch, Bernard Roynette (2013)

ESAIM: Probability and Statistics

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In this paper, we consider ℝ-valued integrable processes which are increasing in the convex order, ℝ-valued peacocks in our terminology. After the presentation of some examples, we show that an ℝ-valued process is a peacock if and only if it has the same one-dimensional marginals as an ℝ-valued martingale. This extends former results, obtained notably by Strassen [36 (1965) 423–439], Doob [2 (1968) 207–225] and Kellerer [198 (1972) 99–122].

Time-homogeneous diffusions with a given marginal at a random time

Alexander M.G. Cox, David Hobson, Jan Obłój (2011)

ESAIM: Probability and Statistics

Similarity:

We solve explicitly the following problem: for a given probability measure , we specify a generalised martingale diffusion () which, stopped at an independent exponential time , is distributed according to . The process ( ) is specified its speed measure . We present two heuristic arguments and three proofs. First we show how the result can be derived from the solution of [Bertoin and Le Jan, (1992) 538–548.] to the Skorokhod embedding problem....

Universality in the bulk of the spectrum for complex sample covariance matrices

Sandrine Péché (2012)

Annales de l'I.H.P. Probabilités et statistiques

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We consider complex sample covariance matrices = (1/)* where is a × random matrix with i.i.d. entries , 1 ≤ ≤ , 1 ≤ ≤ , with distribution . Under some regularity and decay assumptions on , we prove universality of some local eigenvalue statistics in the bulk of the spectrum in the limit where → ∞ and lim→∞ / = for any real number ∈ (0, ∞).

Means in complete manifolds: uniqueness and approximation

Marc Arnaudon, Laurent Miclo (2014)

ESAIM: Probability and Statistics

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Let be a complete Riemannian manifold,  ∈ ℕ and  ≥ 1. We prove that almost everywhere on  = ( ,, ) ∈  for Lebesgue measure in , the measure μ ( x ) = N ∑ k = 1 N x k μ ( x ) = 1 N ∑ k = 1 N δ x k has a unique–mean (). As a consequence, if  = ( ,, ) is a -valued random variable with absolutely continuous law, then almost surely (()) has a unique –mean. In particular if ( ...

Pointwise constrained radially increasing minimizers in the quasi-scalar calculus of variations

Luís Balsa Bicho, António Ornelas (2014)

ESAIM: Control, Optimisation and Calculus of Variations

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We prove of vector minimizers () =  (||) to multiple integrals ∫ ((), |()|)  on a  ⊂ ℝ, among the Sobolev functions (·) in + (, ℝ), using a  : ℝ×ℝ → [0,∞] with (·) and . Besides such basic hypotheses, (·,·) is assumed to satisfy also...

Hydrodynamic limit of a d-dimensional exclusion process with conductances

Fábio Júlio Valentim (2012)

Annales de l'I.H.P. Probabilités et statistiques

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Fix a polynomial of the form () = + ∑2≤≤    =1 with (1) gt; 0. We prove that the evolution, on the diffusive scale, of the empirical density of exclusion processes on 𝕋 d , with conductances given by special class of functions, is described by the unique weak solution of the non-linear parabolic partial differential equation = ∑    ...