ochiai/alex の変更点

• 追加された行はこの色です。
• 削除された行はこの色です。
• ochiai/alex へ行く。
• ochiai/alex の差分を削除

- p39, line 2. $= \bar{\tau}\bar{\mathbf{\Omega}} l - ...$
- p39, line 3. $\mathbf{t}_0=\mathbf{t}(0)$. It is OK, but the latter is more consistent.
- p39, three lines before Lemma 5.2. $t_0$ can be $t$. There is no reason for a suffix $0$.
- p41, line 7. ``Helix $\mathcal{H}$ exists if and only if the conjunction of those two equalities holds.'' What does this mean ?
- p42, line 5, add the period at the end of the sentence.
- p42, (A21) and (A24) is used to prove `which is equivalent to'.
- p43, three lines before (A38). Remove `plus' between $\sin\varphi_*)$ and $\big(-(1-t_0)$.
- p44, line 7, $\varphi_* \cot \frac{\varphi_*}{2} - 2<0$ is derived straightforwardly from $x < \tan x$ for $0<x<\frac\pi2$.

- p.. signature of last formula.