DISSEMINATION AND SPREAD IN WAYS FRACTALS.Summary: This paper is intended to study and model the main features of the transport processes through media or autosimilares fractals. Despite being very different structures among themselves and seemingly irregular fractals have a number of common properties, which are typically characterized by laws of scale, and allowing pose a transport model. We, after reviewing the main results which are known in the field of broadcasting media fractals, we propose an analytical equation is able to explain almost all of these results and even predicts that some behavior is not known so far. The validity of this model is verified through simulations random-walk conducted on computer-generated fractal structures. Besides diffusion processes, we propose that the model can be extended to consider other transport phenomena more generally. Specifically, we devoted a portion of work to the study of reaction processes in ways fractals and, as these models lead to solutions for propagatorio, we concentrated especially in determining velocities of propagation model predicts that in such cases, new checking the validity of these results through simulations. The last part of the report is devoted to exploring practical applications and comparison with experiments in which the diffusion processes or propagation through media autosimilares may have special relevance. The specific applications under consideration are: 1 - The spread of substances through hydrographic networks. 2, - biological processes migration through networks fractals. 3 - The combustion processes and forest fires distributions in heterogeneous fuel. 4 - The spread of chemical fronts in ways fractals.
