4 citations · 12 across the 11 of their papers we have counts for
8 papers · 1 filter
On the role of reduced habitat in the phase transition of a stochastic model for seed dispersal
Cristian F. Coletti, Nevena Marić, Pablo M. Rodriguez
Habitat loss is one of the biggest threats facing plant species nowadays. We formulate a simple mathematical model of seed dispersal on reduced habitats to discuss survival of the…
Bernoulli Correlations and Cut Polytopes
Mark Huber, Nevena Maric
Given symmetric Bernoulli variables, what can be said about their correlation matrix viewed as a vector? We show that the set of those vectors is a polytope…
Minimum correlation for any bivariate Geometric distribution
Mark Huber, Nevena Maric
Consider a bivariate Geometric random variable where the first component has parameter and the second parameter . It is not possible to make the correlation between the…
Multivariate distributions with fixed marginals and correlations
Mark Huber, Nevena Maric
Consider the problem of drawing random variates from a distribution where the marginal of each is specified, as well as the correlation between every pair…
On minimum correlation in construction of multivariate distributions
Vanja Dukic, Nevena Maric
In this paper we present a method for exact generation of multivariate samples with pre-specified marginal distributions and a given correlation matrix, based on a mixture of Fréch…
Contact process in a wedge
J. Theodore Cox, Nevena Maric, Rinaldo B. Schinazi
We prove that the supercritical one-dimensional contact process survives in certain wedge-like space-time regions, and that when it survives it couples with the unrestricted contac…
Quasi stationary distributions and Fleming-Viot processes in countable spaces
Pablo A. Ferrari, Nevena Maric
We consider an irreducible pure jump Markov process with rates Q=(q(x,y)) on Λ\cup\{0\} with Λcountable and 0 an absorbing state. A quasi-stationary distribution (qsd) is a probabi…
Improved bounds for perfect simulation of a continuous one-dimensional loss network
Nancy L. Garcia, Nevena Maric
Perfect simulation of an one-dimensional loss network on with length distribution and cable capacity is performed using the clan of ancestors method. Domination of the…