Timothy O'Donnell Deleted File  about 8 years ago

Commit id: 4d3966a17d0cd0d051467cca561801edd5d76525

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If we assume that sensitive cells follow a deterministic decay  $Z_0(t)=xe^{\lambda_0 t}$ and approximate their extinction time as  $T_x\approx-\frac{1}{\lambda_0}\log x$, then we can heuristically  estimate the expected value as  \begin{eqnarray}  E\bigl[Z_1(vT_x)\bigr] &=& \frac{\mu}{r}\log x  \int_0^{v\wedge1}x^{1-u}x^{({\lambda_1}/{r})(v-u)}\,du  \nonumber\\  &=& \frac{\mu}{r}x^{1-{\lambda_1}/{\lambda_0}v}\log x\int_0^{v\wedge  1}x^{-u(1+{\lambda_1}/{r})}\,du  \nonumber\\  &=& \frac{\mu}{\lambda_1-\lambda_0}x^{1+{\lambda_1}/{r}v} \biggl(1-\exp \biggl[-(v\wedge1) \biggl(1+  \frac{\lambda_1}{r}\biggr)\log x \biggr] \biggr).  \end{eqnarray}