2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/78924Part I of the thesis gives a complete analysis of gaps in a one-dimensional creation-annihilation model. Part II contains a proof of the existence of infinitely many holes in the two-dimensional DLA cluster.Ph. D. Thesis (University of Washington)ProbabilityMathematical Physics60K35; 82C20text