2 papers
math.DS2026
Darboux first integrals of Kolmogorov systems with invariant -sphere
Supriyo Jana, Soumen Sarkar
In this paper, we characterize all polynomial Kolmogorov vector fields for which the standard -sphere is invariant. We exhibit completely integrable Kolmogorov vector fields of…
math.DS2024
Dynamics and integrability of polynomial vector fields on the -dimensional sphere
Supriyo Jana, Soumen Sarkar
In this paper, we characterize arbitrary polynomial vector fields on . We establish a necessary and sufficient condition for a degree one vector field on the odd-dimensional s…