Figure 1From: Analysis of a free boundary problem for tumor growth in a periodic external environment An example of the graph of \(\pmb{R(t)}\) for \(\pmb{\varphi(t)=\sin t+8}\) , \(\pmb{\phi(t)=\cos t+6}\) , \(\pmb{\theta=0.5}\) , \(\pmb{\omega=2\pi}\) , \(\pmb{\lambda=\mu=1}\) , \(\pmb{\nu=3}\) which satisfy Theorem 2.2 . Back to article page