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diff --git a/buch/papers/lambertw/Bilder/something.svg b/buch/papers/lambertw/Bilder/something.svg
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diff --git a/buch/papers/lambertw/teil0.tex b/buch/papers/lambertw/teil0.tex
index ca172e5..f174ccb 100644
--- a/buch/papers/lambertw/teil0.tex
+++ b/buch/papers/lambertw/teil0.tex
@@ -3,14 +3,73 @@
 %
 % (c) 2020 Prof Dr Andreas Müller, Hochschule Rapperswil
 %
-\section{Was sind Verfolgungskurven? \label{lambertw:section:teil0}}
+\section{Was sind Verfolgungskurven?
+\label{lambertw:section:teil0}}
 \rhead{Teil 0}
 
+Verfolgungskurven tauchen oft auf bei fragen wie, welchen Pfad begeht ein Hund während er einer Katze nachrennt. Ein solches Problem hat im Kern immer ein Verfolger und sein Ziel. Der Verfolger versucht sein Ziel zu ergattern und das Ziel versucht zu entkommen. Der Pfad, der der Verfolger während der Verfolgung begeht, wird Verfolgungskurve genannt. Um diese Kurve zu bestimmen, kann das Verfolgungsproblem als DGL formuliert werden. Diese DGL entspringt der Verfolgungsstrategie des Verfolgers.
 
-Verfolgungskurven entstehen immer, dann wenn ein Verfolger sein Ziel verfolgt.
-Nämlich ist eine Verfolgungskurve die Kurve, die ein Verfolger abfährt während er sein Ziel verfolgt.
 
-Zum Beispiel 
+\subsection{Verfolger und Verfolgungsstrategie
+\label{lambertw:subsection:Verfolger}}
+Wie bereits erwähnt, wird der Verfolger durch seine Verfolgungsstrategie definiert. Wir nehmen an, dass sich der Verfolger stur an eine Verfolgungsstrategie hält. Dabei gibt es viele mögliche Strategien, die der Verfolger wählen könnte. Die möglichen Strategien entstehen durch Festlegung einzelner Parameter, die der Verfolger kontrollieren kann. Der Verfolger hat nur einen direkten Einfluss auf seinen Geschwindigkeitsvektor. Mit diesem kann er neben Richtung und Betrag auch den Abstand zwischen Verfolger und Ziel kontrollieren. Wenn zwei dieser drei Parameter durch die Strategie definiert werden, ist der dritte nicht mehr frei. Daraus folgt, dass eine Strategie zwei dieser drei Parameter festlegen muss, um den Verfolger komplett zu beschreiben.
+
+\begin{tabular}{|>{$}l<{$}|>{$}l<{$}|>{$}c<{$}|>{$}c<{$}|>{$}c<{$}|>{$}c<{$}|}
+    \hline
+    \text{}&\text{Geschwindigkeit}&\text{Abstand}&\text{Richtung}\\
+    \hline
+    \text{Strategie 1}
+    & \text{konstant} & \text{-} & \text{direkt auf Ziel hinzu}\\
+    
+    \text{Strategie 2}
+    & \text{-} & \text{konstant} & \text{direkt auf Ziel hinzu}\\
+    
+    \text{Strategie 3}
+    & \text{konstant} & \text{-} & \text{etwas voraus Zielen}\\
+    \hline
+\label{lambertw:Strategien}
+\end{tabular}
+
+In der Tabelle \eqref{lambertw:Strategien} sind drei mögliche Strategien aufgezählt. Folgend wird nur noch auf die Strategie 1 eingegangen. Bei dieser Strategie ist die Geschwindigkeit konstant und der Verfolger bewegt sich immer direkt auf sein Ziel hinzu. In der Grafik \eqref{lambertw:pursuerDGL2} ist das Problem dargestellt. Wobei $\overrightarrow{V}$ der Ortsvektor des Verfolgers, $\overrightarrow{Z}$ der Ortsvektor des Ziels und $\overrightarrow{\dot{V}}$ der Richtungsvektor des Verfolgers ist. Die konstante Geschwindigkeit kann man mit der Gleichung
+\begin{equation}
+    |\overrightarrow{\dot{V}}|
+    =
+    konst = A
+    \quad|A\in\mathbb{R}>0
+\end{equation}
+darstellen. Der Richtungsvektor wiederum kann mit der Gleichung
+\begin{equation}
+    \frac{\overrightarrow{Z}-\overrightarrow{V}}{|\overrightarrow{Z}-\overrightarrow{V}|}
+    =
+    \frac{\overrightarrow{\dot{V}}}{|\overrightarrow{\dot{V}}|}
+\end{equation}
+beschrieben werden. Durch die Subtraktion der Ortsvektoren $\overrightarrow{V}$ und $\overrightarrow{Z}$ entsteht ein Vektor der vom Punkt $V$ auf $Z$ zeigt. Da die Länge dieses Vektors beliebig sein kann, wird durch Division mit dem Betrag, die Länge auf eins festgelegt.
+Aus dem Verfolgungsproblem ist auch ersichtlich, dass die Punkte $V$ und $Z$ nicht am gleichen Ort starten und so eine Division durch Null ausgeschlossen ist. Wenn die Punkte $V$ und $Z$ trotzdem am gleichen Ort starten, ist die Lösung trivial.
+Nun wird die Gleichung mit deren rechten Seite skalar multipliziert, um das Gleichungssystem von zwei auf eine Gleichung zu reduzieren.
+\begin{equation}
+    \label{pursuer:pursuerDGL}
+    \frac{\overrightarrow{Z}-\overrightarrow{V}}{|\overrightarrow{Z}-\overrightarrow{V}|}\cdot \frac{\overrightarrow{\dot{V}}}{|\overrightarrow{\dot{V}}|}
+    =
+    1
+\end{equation}
+Diese DGL ist der Kern des Verfolgungsproblems, insofern sich der Verfolger immer direkt auf sein Ziel zubewegt.
+
+
+
+
+
+\subsection{Ziel
+\label{lambertw:subsection:Ziel}}
+Als nächstes gehen wir auf das Ziel ein. Wie der Verfolger wird auch unser Ziel sich strikt an eine Fluchtstrategie halten, welche von Anfang an bekannt ist. Diese Strategie kann als Parameterdarstellung der Position nach der Zeit beschrieben werden. Zum Beispiel könnte ein Ziel auf einer Geraden flüchten, welches auf einer Ebene mit der Parametrisierung
+\begin{equation}
+    \vec{r}(t)
+    =
+    \begin{Bmatrix}
+        0\\
+        t
+    \end{Bmatrix}
+\end{equation}
+beschrieben werden könnte.
 
 
 
diff --git a/buch/papers/lambertw/teil1.tex b/buch/papers/lambertw/teil1.tex
index 493ec05..cc4a62a 100644
--- a/buch/papers/lambertw/teil1.tex
+++ b/buch/papers/lambertw/teil1.tex
@@ -3,7 +3,7 @@
 %
 % (c) 2020 Prof Dr Andreas Müller, Hochschule Rapperswil
 %
-\section{Beispiel ()
+\section{Ziel
 \label{lambertw:section:teil1}}
 \rhead{Problemstellung}
 
diff --git a/buch/papers/lambertw/teil2.tex b/buch/papers/lambertw/teil2.tex
index 9d840ab..c95511a 100644
--- a/buch/papers/lambertw/teil2.tex
+++ b/buch/papers/lambertw/teil2.tex
@@ -3,38 +3,15 @@
 %
 % (c) 2020 Prof Dr Andreas Müller, Hochschule Rapperswil
 %
-\section{Teil 2 
-\label{lambertw:section:teil2}}
+\section{Verfolger
+\label{lambertw:section:Verfolger}}
 \rhead{Teil 2}
-Sed ut perspiciatis unde omnis iste natus error sit voluptatem
-accusantium doloremque laudantium, totam rem aperiam, eaque ipsa
-quae ab illo inventore veritatis et quasi architecto beatae vitae
-dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit
-aspernatur aut odit aut fugit, sed quia consequuntur magni dolores
-eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam
-est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci
-velit, sed quia non numquam eius modi tempora incidunt ut labore
-et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima
-veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam,
-nisi ut aliquid ex ea commodi consequatur? Quis autem vel eum iure
-reprehenderit qui in ea voluptate velit esse quam nihil molestiae
-consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla
-pariatur?
 
-\subsection{De finibus bonorum et malorum
-\label{lambertw:subsection:bonorum}}
-At vero eos et accusamus et iusto odio dignissimos ducimus qui
-blanditiis praesentium voluptatum deleniti atque corrupti quos
-dolores et quas molestias excepturi sint occaecati cupiditate non
-provident, similique sunt in culpa qui officia deserunt mollitia
-animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis
-est et expedita distinctio. Nam libero tempore, cum soluta nobis
-est eligendi optio cumque nihil impedit quo minus id quod maxime
-placeat facere possimus, omnis voluptas assumenda est, omnis dolor
-repellendus. Temporibus autem quibusdam et aut officiis debitis aut
-rerum necessitatibus saepe eveniet ut et voluptates repudiandae
-sint et molestiae non recusandae. Itaque earum rerum hic tenetur a
-sapiente delectus, ut aut reiciendis voluptatibus maiores alias
-consequatur aut perferendis doloribus asperiores repellat.
 
 
+\subsection{Strategie 1
+\label{lambertw:subsection:Strategie1}}
+
+
+\subsection{Strategie 2
+\label{lambertw:subsection:Strategie2}}