<正>In this paper,a three dimensional ratio-dependent chemostat model with period- ically pulsed input is considered.By using the discrete dynamical system dete
The authors study the singular integral operator TΩ,αf(x)=p.v.∫R^nb(|y|Ω(y′)|y|^-n-αf(x-y)dy, defined on all test functions f, where b is a bounded functi