activity
19952022
most citedA survey of random processes with reinforcement

588 citations · 741 across the 78 of their papers we have counts for

collaborators

89 papers

math.CO2022★ 2 cited

Asymptotics of multivariate sequences IV: generating functions with poles on a hyperplane arrangement

Yuliy Baryshnikov, Stephen Melczer, Robin Pemantle

Let F be the quotient of an analytic function with a product of linear functions. Working in the framework of analytic combinatorics in several variables, we compute asymptotic for…

math.PR2020

Success probability for selectively neutral invading species in the line model with a random fitness landscape

Suzan Farhang-Sardroodi, Natalia L. Komarova, Marcus Michelen +1

We consider a spatial (line) model for invasion of a population by a single mutant with a stochastically selectively neutral fitness landscape, independent from the fitness landsca…

math.CO2019

Stationary points at infinity for analytic combinatorics

Yuliy Baryshnikov, Stephen Melczer, Robin Pemantle

On complex algebraic varieties, height functions arising in combinatorial applications fail to be proper. This complicates the description and computation via Morse theory of key t…

math.CO2019

Asymptotics of multivariate sequences in the presence of a lacuna

Yuliy Baryshnikov, Stephen Melczer, Robin Pemantle

We explain a discontinuous drop in the exponential growth rate for certain multivariate generating functions at a critical parameter value, in even dimensions d at least 4. This re…

math.PR2018

Euclidean Embedding of the Poisson Weighted Infinite Tree and Application to Mobility Models

R. W. R. Darling, Robin Pemantle

Continuous time branching models are used to create random fractals in a Euclidean space, whose Hausdorff dimension is controlled by an input parameter. Finite realizations are app…

math.CO2018

Counting partitions inside a rectangle

Stephen Melczer, Greta Panova, Robin Pemantle

We consider the number of partitions of whose Young diagrams fit inside an rectangle; equivalently, we study the coefficients of the -binomial coefficient $\…