From 543f5d72e25e6f154937cce2c49aaacbe823792d Mon Sep 17 00:00:00 2001 From: Luke Naylor <l.naylor@sms.ed.ac.uk> Date: Fri, 30 Jun 2023 15:23:18 +0100 Subject: [PATCH] Trim out old outline bullet points --- main.tex | 23 +---------------------- 1 file changed, 1 insertion(+), 22 deletions(-) diff --git a/main.tex b/main.tex index 5e4b908..aac27e6 100644 --- a/main.tex +++ b/main.tex @@ -626,17 +626,6 @@ with the goal of cutting down the run time. \subsection*{Problem statement} -Goals: -\begin{itemize} - \item link repo - \item Calc max destab rank - \item Decrease mu(E) starting from mu(F) taking on all poss frac vals - \item iterate over something else - \item Stop when conditions fail - \item method works same way for both rational beta_{-} but also for walls - larger than certain amount -\end{itemize} - Fix a Chern character $v$ with positive rank, $\Delta(v) \geq 0$, and $\beta_{-}(v) \in \QQ$. The goal is to find all Chern characters $u=(r,c\ell,d\ell^2)$ which satisfy the @@ -674,7 +663,6 @@ the Bogomolov inequalities and consequence 3 of lemma \ref{lem:pseudo_wall_numerical_tests} ($\chern_2^{\beta_{-}}(u)>0$). - \subsubsection*{Finding $d$ for fixed $r$ and $c$} $\Delta(u) \geq 0$ induces an upper bound $\frac{c^2}{2r}$ on $d$, and the @@ -682,17 +670,8 @@ $\chern_2^{\beta_{-}}(u)>0$ condition induces a lower bound on $d$. The values in the range can be tested individually, to check that the rest of the conditions are satisfied. - - \subsection*{Limitations} -Goals: -\begin{itemize} - \item large rank forces mu to beta_{-}, so many vals of mu(E) checked - needlessly - \item noticeably slow (show benchmark) -\end{itemize} - The main downside of this algorithm is that many $r$,$c$ pairs which are tested end up not yielding any solutions for the problem. In fact, solutions $u$ to our problem with high rank must have $\mu(u)$ close to @@ -712,7 +691,7 @@ Here are some benchmarks to illustrate the performance benefits of the alternative algorithm which will later be described in this article [ref]. \begin{center} -\begin{tabular}{ |r|l|l| } +\begin{tabular}{ |r|l|l| } \hline Choice of $v$ on $\mathbb{P}^2$ & $(3, 2\ell, -2)$ -- GitLab