Seminár z kvalitatívnej teórie diferenciálnych rovníc - Mihály Pituk (1.12.2016)
vo štvrtok 1.12.2016 o 14:00 hod. v miestnosti M/223
Prednášajúci: Mihály Pituk (University of Pannonia, Veszprém)
Názov: Lyapunov Exponents of Positive Solutions of a Perturbed System of Delay Differential Equations
Termín: 1.12.2016, 14:00 hod., M/223
Abstrakt:
We will consider perturbations of a linear system of autonomous delay differential equations. According to a Perron type theorem, if the Lyapunov exponent of a solution is finite, then it is equal to the real part of one of the eigenvalues of the unperturbed linear part. In this talk we will show that if in addition the solution is positive then its Lyapunov exponent is a real eigenvalue of the linear part with a positive eigenfunction.