The <SI model> has two compartments and one transition,
$$
S\xrightarrow{\,\beta SI/N\,}I,
$$
where $S$ and $I$ are the numbers susceptible and infectious and $\beta>0$ is the per-infective transmission-rate parameter under frequency-dependent homogeneous mixing.

Solution

Past exam of the mathematics course of the University of Cambridge / 2022 / iii / Paper 207 / 3 / a / Solution

 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2022/iii/paper-207/3/a/solution