2 papers
math.PR2010
Martingale property of generalized stochastic exponentials
Aleksandar Mijatović, Nika Novak, Mikhail Urusov
For a real Borel measurable function b, which satisfies certain integrability conditions, it is possible to define a stochastic integral of the process b(Y) with respect to a Brown…
math.FA2006
An operator is a product of two quasi-nilpotent operators if and only if it is not semi-Fredholm
Roman Drnovšek, Vladimir Müller, Nika Novak
We prove that a (bounded linear) operator acting on an infinite-dimensional, separable, complex Hilbert space can be written as a product of two quasi-nilpotent operators if and on…