Non-Gaussian upper and lower bounds are obtained for the transition probabilities of the simple random walk on the Sierpinski graph, the pre-fractal associated with the Sierpinski gasket. They are of the same form as bounds previously obtained for the transition density of Brownian motion on the...

In order to observe the structural changes of the export specialization processes in Romanian regions, compared to the European Union (EU-27) during the 2000-2011, I used the regional and EU data pertaining to exports organized on sections of the Combined Nomenclature. The analysis involved,...

In order to observe the structural changes of the export specialization processes in Romanian regions, compared to the European Union (EU-27) during the 2000-2011, I used the regional and EU data pertaining to exports organized on sections of the Combined Nomenclature. The analysis involved,...

We give a characterization of random-coefficient autoregressive processes of order 1, using analytical properties of the transition probabilities. As an example we show that these transition probabilities can be used to find solutions of certain integro-differential equations.