Figure 2

The densities \(\wp (t,\Delta t)\) and \(\wp _{\mathcal{W}}(t,\Delta t)\) with the following color and symbol code: black without symbols represents \(\Delta t=2\), red with + represents \(\Delta t=3\), green with ∗ represents \(\Delta t=4\), blue with × represents \(\Delta t=5\); (—) lines represent \(\mathcal{W}=1\), \((-\cdot \cdot -)\) lines represent \(\mathcal{W}=2\), \((-\phantom{.}-\phantom{.}-)\) lines represent \(\mathcal{W}=3\); thin lines represent \(\wp (t,\Delta t)\), and thick lines represent \(\wp _{\mathcal{W}}(t,\Delta t)\). The brackets signal the location of \(\wp (t,\Delta t)\) and \(\wp _{\mathcal{W}}(t,\Delta t)\) in the plot