Lecture 2

13 Novembro 2017, 15:30 • Maria Teresa Faria da Paz Pereira

The classical example x'(t)=-ax(t-r) (r>0,a in R) (continuation): pure imaginary roots and complex roots with positive real part; stability; necessary and sufficient condition for oscillation of all solutions. Criteria for positivity and comparison of solutions for DDEs with one (or more) discrete delays.
(This class took place on Wednesday Nov. 15, 2017, from 18h15 to 20h.)