Aula 2

12 Novembro 2018, 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. Some references and results for further reading.
Criteria for positivity and comparison of solutions for DDEs with one (or more) discrete delays and for distributed) delays: positivity and Smith's quasimonotone conditions.
(Aula em português, em 16/11/2017, 14h00-16h00.)