diff --git a/main.tex b/main.tex index 2d142d8737ddcbda9506c9ad81d6c37e4e7651f1..73585b3e352f3ff1b31dc239c6910d54d94db97c 100644 --- a/main.tex +++ b/main.tex @@ -50,8 +50,8 @@ This dichotomy does not only hold for real walls, realised by actual objects in $\bddderived(X)$, but also for pseudowalls. Here pseudowalls are defined as `potential' walls, induced by hypothetical Chern characters of destabilizers which satisfy certain numerical conditions which would be satisfied by any real -destabilizer, regardless of whether they are realised by actual elements of -$\bddderived(X)$. +destabilizer, regardless of whether they are realised by actual semistabilizers +in $\bddderived(X)$. Since real walls are a subset of pseudowalls, the irrational $\beta_{-}$ case follows immediately from the corresponding case for real walls. @@ -991,7 +991,7 @@ proof of theorem \ref{thm:rmax_with_uniform_eps}: \begin{lemmadfn}[ Finding better alternatives to $\epsilon_F$: - $\epsilon_q^1$ and $\epsilon_q^2$ + $\epsilon_{q,1}$ and $\epsilon_{q,2}$ ] \label{lemdfn:epsilon_q} Suppose $d \in \frac{1}{m}\ZZ$ satisfies the condition in @@ -1007,16 +1007,16 @@ Then we have: \begin{equation*} d - \frac{(\aa r + 2\bb)\aa}{2n^2} - \geq \epsilon_q^2 \geq \epsilon_q^1 > 0 + \geq \epsilon_{q,2} \geq \epsilon_{q,1} > 0 \end{equation*} -Where $\epsilon_q^1$ and $\epsilon_q^2$ are defined as follows: +Where $\epsilon_{q,1}$ and $\epsilon_{q,2}$ are defined as follows: \begin{equation*} - \epsilon_q^1 := + \epsilon_{q,1} := \frac{k_q^1}{2mn^2} \qquad - \epsilon_q^2 := + \epsilon_{q,2} := \frac{k_q^2}{2mn^2} \end{equation*} \begin{align*} @@ -1033,7 +1033,8 @@ Where $\epsilon_q^1$ and $\epsilon_q^2$ are defined as follows: \end{lemmadfn} -It's worth noting that $\epsilon_q^2$ is potentially larger than $\epsilon_q^2$ +It is worth noting that $\epsilon_{q,2}$ is potentially larger than +$\epsilon_{q,2}$ but calculating it involves a $\gcd$, a modulo reduction, and a modulo $n$ inverse, for each $q$ considered. @@ -1077,11 +1078,12 @@ eqn \ref{eqn:finding_better_eps_problem}. Since such a $k$ must also satisfy eqn \ref{eqn:better_eps_problem_k_mod_n}, we can pick the smallest $k_q^1 \in \ZZ_{>0}$ which satisfies this new condition (a computation only depending on $q$ and $\beta$, but not $r$). -We are then guaranteed that the gap $\frac{k}{2mn^2}$ is at least $\epsilon_q^1$. +We are then guaranteed that the gap $\frac{k}{2mn^2}$ is at least +$\epsilon_{q,1}$. Furthermore, $k$ also satisfies eqn \ref{eqn:better_eps_problem_k_mod_gcd2n2_a2mn} so we can also pick the smallest $k_q^2 \in \ZZ_{>0}$ satisfying this condition, -which also guarantees that the gap $\frac{k}{2mn^2}$ is at least $\epsilon_q^2$. +which also guarantees that the gap $\frac{k}{2mn^2}$ is at least $\epsilon_{q,2}$. \end{proof} @@ -1094,7 +1096,7 @@ which also guarantees that the gap $\frac{k}{2mn^2}$ is at least $\epsilon_q^2$. are bounded above by the following expression (with $i=1$ or 2). \begin{equation*} - \frac{1}{2 \epsilon_q^i} + \frac{1}{2 \epsilon_{q,i}} \min \left( q^2, @@ -1104,10 +1106,10 @@ which also guarantees that the gap $\frac{k}{2mn^2}$ is at least $\epsilon_q^2$. -2Cq +q^2 +\frac{R}{\lcm(m,2n^2)} - +R \epsilon_q^i + +R \epsilon_{q,i} \right) \end{equation*} - Where $\epsilon_q^i$ is defined as in definition/lemma \ref{lemdfn:epsilon_q}. + Where $\epsilon_{q,i}$ is defined as in definition/lemma \ref{lemdfn:epsilon_q}. \end{theorem}