Timeline for A stopping time that gives the metric
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
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| Mar 2, 2020 at 19:58 | comment | added | Mateusz Kwaśnicki | In the displayed equation, the third equality is wrong: we have $\mathbb{E}_x[T_y \circ \theta_{T_z} | \mathscr{F}_{T_z}] = \mathbb{E}_z[T_y]$ a.s., but $T_y \circ \theta_{T_z} = T_y - T_z$ only on the event $\{T_y > T_z\}$. Also, there are extremely few functions that satisfy $d(x,y) = d(x,z) + d(z,y)$ for every triple $x, y, z$... | |
| Mar 2, 2020 at 16:33 | history | answered | user1118 | CC BY-SA 4.0 |