A simple bioclogging model that accounts for spatial spreading of bacteria.
A simple derivation of the eigenvalues of a tridiagonal matrix arising in biogeography
In investigating a certain optimization problem in biogeography, Simon [IEEE Trans. Evolutionary Comput. 12 (2008), 702-713] encountered a certain specially structured tridiagonal matrix and made a conjecture regarding its eigenvalues. A few years later, the validity of the conjecture was established by Igelnik and Simon [Appl. Math. Comput. 218 (2011), 195-201]. In this paper, we give another proof of this conjecture that is much shorter, almost computation-free, and does not resort to the eigenvectors...
A simple interpretation of two stochastic processes subject to an independent death process.
A simple mathematical model for Batesian mimicry.
A Spatial Model of Tumor Growth with Cell Age, Cell Size, and Mutation of Cell Phenotypes
A model of tumor growth in a spatial environment is analyzed. The model includes proliferating and quiescent compartments of tumor cells indexed by successively mutated cell phenotypes of increasingly proliferative aggressiveness. The model incorporates spatial dependence due to both random motility and directed movement haptotaxis. The model structures tumor cells by both cell age and cell size. The model consists of a system of nonlinear partial differential equations for the compartments of...
A statistical variance components framework for mapping imprinted quantitative trait locus in experimental crosses.
A stochastic cobweb dynamical model.
A stochastic death pairing process.
A stochastic model of symbiosis
We consider a system of stochastic differential equations which models the dynamics of two populations living in symbiosis. We prove the existence, uniqueness and positivity of solutions. We analyse the long-time behaviour of both trajectories and distributions of solutions. We give a biological interpretation of the model.
A Stochastic Solver of the Generalized Born Model
A stochastic generalized Born (GB) solver is presented which can give predictions of energies arbitrarily close to those that would be given by exact effective GB radii, and, unlike analytical GB solvers, these errors are Gaussian with estimates that can be easily obtained from the algorithm. This method was tested by computing the electrostatic solvation energies (ΔGsolv) and the electrostatic binding energies (ΔGbind) of a set of DNA-drug complexes, a set of protein-drug complexes, a set of protein-protein...
A stochastic symbiosis model with degenerate diffusion process
We present a model of symbiosis given by a system of stochastic differential equations. We consider a situation when the same factor influences both populations or only one population is stochastically perturbed. We analyse the long-time behaviour of the solutions and prove the asymptoptic stability of the system.
A stochastic two species competition model: nonequilibrium fluctuation and stability.
A survey of cell population dynamics.
A survey of the literature associated with the bisexual Galton-Watson branching process.
A Theorem on Average Liapunov Functions.
A three species ecosystem consisting of a prey, predator and a host commensal to the prey.
A three-species food chain system with two types of functional responses.
A transient density-dependent diffusion-reaction model for the limitation of antibiotic penetration in biofilms.
A two-dimensional model for the transmission of dengue fever disease.
A two-species cooperative Lotka-Volterra system of degenerate parabolic equations.