We provide several inequalities for the L^q-norm of the Wick product of random variables. These estimates are based on a Jensen’s type inequality for the Wick multiplication, which we derive via a positivity argument. As an application we study a certain type of anticipating stochastic differential equation whose solution is shown to be an element of L^q for some q ≥ 1.

Some norm inequalities for gaussian Wick products

LANCONELLI, ALBERTO;
2010

Abstract

We provide several inequalities for the L^q-norm of the Wick product of random variables. These estimates are based on a Jensen’s type inequality for the Wick multiplication, which we derive via a positivity argument. As an application we study a certain type of anticipating stochastic differential equation whose solution is shown to be an element of L^q for some q ≥ 1.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11586/13566
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