Skip to content
Snippets Groups Projects
Commit 937f8b93 authored by Luke Naylor's avatar Luke Naylor
Browse files

Complete proof and misc in problems sect

parent 3d608a35
No related branches found
No related tags found
No related merge requests found
......@@ -654,14 +654,13 @@ $v-u$ for each solution $u$ of the problem.
Fix a Chern character $v$ with positive rank, $\Delta(v) \geq 0$,
and $\beta_{-}(v) \in \QQ$.
The goal is to find all solutions $u$
to problem \ref{problem:problem-statement-1} with the choice
$P=(\beta_{-},0)$.
The goal is to find all pseudo-semistabilizers $u$ which give circular
pseudo-walls on the left side of $V_v$.
\end{problem}
This is a specialization of problem (\ref{problem:problem-statement-1})
which will give all circular pseudo-walls left of $V_v$.
This is because all circular walls left of $V_v$ intersect $\Theta_v^-$.
with the choice $P=(\beta_{-},0)$.
This is because all circular walls left of $V_v$ intersect $\Theta_v^-$ (once).
The $\beta_{-}(v) \in \QQ$ condition is to ensure that there are finitely many
solutions. As mentioned in the introduction (\ref{sec:intro}), this is known,
however this will also be proved again in passing in this article.
......@@ -680,17 +679,22 @@ problem with the help of lemma \ref{lem:pseudo_wall_numerical_tests}.
Are precisely given by integers $r,c,d$ satisfying the following conditions:
\begin{enumerate}
\item $r > 0$
\item $\Delta(u) \geq 0$
\item $\Delta(v-u) \geq 0$
\item $\Delta(u) \geq 0$
\item $\Delta(v-u) \geq 0$
\item $\beta(P)<\mu(u)=\frac{c}{r}<\mu(v)$
\item $\chern_1^{\beta(P)}(v-u)\geq0$
\item $\chern_1^{\beta(P)}(u)\leq\chern_1^{\beta(P)}(v)$
\item $\chern_2^{P}(u)>0$
\end{enumerate}
\end{lemma}
\begin{proof}
% TODO complete
Use main lemma \ref{lem:pseudo_wall_numerical_tests} TODO
Consider the context of $v$ being a Chern character with positive rank and
$\Delta \geq 0$, and $u$ being a Chern character with $\Delta(u) \geq 0$.
Lemma \ref{lem:pseudo_wall_numerical_tests} gives that the remaining
conditions for $u$ being a solution to problem
\ref{problem:problem-statement-1} are precisely equivalent to the
remaining conditions in this lemma.
\end{proof}
\begin{corrolary}[Numerical Tests for All `left' Pseudo-walls]
......@@ -701,16 +705,17 @@ problem with the help of lemma \ref{lem:pseudo_wall_numerical_tests}.
Are precisely given by integers $r,c,d$ satisfying the following conditions:
\begin{enumerate}
\item $r > 0$
\item $\Delta(u) \geq 0$
\item $\Delta(v-u) \geq 0$
\item $\Delta(u) \geq 0$
\item $\Delta(v-u) \geq 0$
\item $\beta(P)<\mu(u)=\frac{c}{r}<\mu(v)$
\item $\chern_1^{\beta_{-}}(v-u)\geq0$
\item $\chern_1^{\beta(P)}(u)\leq\chern_1^{\beta(P)}(v)$
\item $\chern_2^{\beta_{-}}(u)>0$
\end{enumerate}
\end{corrolary}
\begin{proof}
This is a specialization of the previous lemma, using $P=(\beta_{-},0)$.
\end{proof}
......
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment