3 papers
math.PR2009
A Characterization Theorem for the Distribution of a Continuous Local Martingale and Related Limit Theorems
Andriy Yurachkivsky
The main result of the article reads: the distribution of a continuous starting from zero local martingale whose quadratic characteristic is almost surely absolutely continuous wit…
math.FA2007
A Criterion for Precompactness in the Space of Hypermeasures
Andriy Yurachkivsky
Let denote the space of signed measures on the Borel -algebra of a separable complete space . We endow with the norm , where the supremum is take…
math.FA2007
Approximate calculation of operator semigroups by perturbation of generators
A. Yurachkivsky, A. Zhugayevych
Let be an operator semigroup with generator in a sequentially complete locally convex topological vector space . For a semigroup with generator , where is a bou…