31 citations · 144 across the 26 of their papers we have counts for
36 papers
Gelation in Vector Multiplicative Coalescence and Extinction in Multi-Type Poisson Branching Processes
Heshan Aravinda, Yevgeniy Kovchegov, Peter T. Otto +1
In this note, we present a novel connection between a multi-type (vector) multiplicative coalescent process and a multi-type branching process with Poisson offspring distributions.…
Extensions of true skewness for unimodal distributions
Yevgeniy Kovchegov, Alex Negrón, Clarice Pertel +1
A 2022 paper arXiv:2009.10305v4 introduced the notion of true positive and negative skewness for continuous random variables via Fréchet -means. In this work, we find novel crit…
Invariant Galton-Watson trees: metric properties and attraction with respect to generalized dynamical pruning
Yevgeniy Kovchegov, Guochen Xu, Ilya Zaliapin
Invariant Galton-Watson (IGW) tree measures is a one-parameter family of critical Galton-Watson measures invariant with respect to a large class of tree reduction operations. Such…
Multidimensional Lambert-Euler inversion and vector-multiplicative coalescent processes
Yevgeniy Kovchegov, Peter T. Otto
In this paper we show the existence of the minimal solution to the multidimensional Lambert-Euler inversion, a multidimensional generalization of branch of Lambert W…
Critical Tokunaga model for river networks
Yevgeniy Kovchegov, Ilya Zaliapin, Efi Foufoula-Georgiou
The hierarchical organization and self-similarity in river basins have been topics of extensive research in hydrology and geomorphology starting with the pioneering work of Horton…
A new life of Pearson's skewness
Yevgeniy Kovchegov
In this work we show how coupling and stochastic dominance methods can be successfully applied to a classical problem of rigorizing Pearson's skewness. Here, we use Fréchet means t…