Biomedical subjects

Ryszard Rudnicki

Publications and source records attributed to Ryszard Rudnicki.

2 recordsLinked to original sources

PubMed2006

Influence of stochastic perturbation on prey-predator systems.

We analyse the influence of various stochastic perturbations on prey-predator systems. The prey-predator model is described by stochastic versions of a deterministic Lotka-Volterra system. We study long-time behaviour of both trajectories and distributions of the solutions. We indicate the differences between the deterministic and stochastic models.

Algorithms↗

PubMed2004

Phytoplankton dynamics.

We present a model of the phytoplankton dynamics. The distribution of the size of the phytoplankton aggregates is described by a non-linear transport equation that contains terms responsible for the growth of phytoplankton aggregates, their fragmentation and coagulation. We study asymptotic behaviour of moments of the solutions and we explain why phytoplankton tends to create large aggregates.

Animals↗