Let X be a separable Banach space endowed with a non-degenerate centered Gaussian measure μ. The associated Cameron-Martin space is denoted by H. Consider two sufficiently regular convex functions U: X → R and G: X →R We let ν = e-Uμ and ω = G-1(-∞, 0]. In this paper, we study the domain of the self-adjoint operator associated with the quadratic form {equation presented} and we give sharp embedding results for it. In particular, we obtain a characterization of the domain of the Ornstein-Uhlenbeck operator in Hilbert space with ω = X and on half-spaces, namely if U 0 and G is an affine function, then the domain of the operator defined via (0.1) is the space u {equation presented}, where ρ is the Feyel-de La Pradelle Hausdorff-Gauss surface measure.

Domains of elliptic operators on sets in Wiener space / Addona, D.; Cappa, G.; Ferrari, S.. - In: INFINITE DIMENSIONAL ANALYSIS QUANTUM PROBABILITY AND RELATED TOPICS. - ISSN 0219-0257. - 23:1(2020), p. 2050004. [10.1142/S0219025720500046]

Domains of elliptic operators on sets in Wiener space

Addona D.
;
Cappa G.;Ferrari S.
2020-01-01

Abstract

Let X be a separable Banach space endowed with a non-degenerate centered Gaussian measure μ. The associated Cameron-Martin space is denoted by H. Consider two sufficiently regular convex functions U: X → R and G: X →R We let ν = e-Uμ and ω = G-1(-∞, 0]. In this paper, we study the domain of the self-adjoint operator associated with the quadratic form {equation presented} and we give sharp embedding results for it. In particular, we obtain a characterization of the domain of the Ornstein-Uhlenbeck operator in Hilbert space with ω = X and on half-spaces, namely if U 0 and G is an affine function, then the domain of the operator defined via (0.1) is the space u {equation presented}, where ρ is the Feyel-de La Pradelle Hausdorff-Gauss surface measure.
2020
Domains of elliptic operators on sets in Wiener space / Addona, D.; Cappa, G.; Ferrari, S.. - In: INFINITE DIMENSIONAL ANALYSIS QUANTUM PROBABILITY AND RELATED TOPICS. - ISSN 0219-0257. - 23:1(2020), p. 2050004. [10.1142/S0219025720500046]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2887637
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