Operator-stable laws

Autor: J.David Mason, William N. Hudson
Rok vydání: 1981
Předmět:
Zdroj: Journal of Multivariate Analysis. 11(3):434-447
ISSN: 0047-259X
DOI: 10.1016/0047-259x(81)90086-5
Popis: Sharpe investigated the structure of full operator-stable measures μ on a vector group V and obtained decompositions, μ = μ1 ∗ μ2 and V = V1 ⊕ V2, in terms of the Gaussian component μ1 and the Poisson component μ2. The subspaces V1 and V2 are here identified in terms of an exponent B for μ. Sharpe also pointed out that the Lévy measure M of μ is a mixture of Lévy measures concentrated on single orbits of tB. Here, an explicit representation is obtained for M as such a mixture by constructing a measure on the unit sphere. Also, necessary and sufficient conditions are given that a Lévy measure be the Lévy measure of a full operator-stable measure. The final result deals with full Gaussian measures μ and establishes the connection between its covariance operator and the class of all exponents of μ.
Databáze: OpenAIRE