\magnification=1200
\hsize=4in
\overfullrule=0pt
\input amssym
%\def\frac#1 #2 {{#1\over #2}}
\def\emph#1{{\it #1}}
\def\em{\it}
\nopagenumbers
\noindent
%
%
{\bf Sven Herrmann, Anders Jensen, Michael Joswig and Bernd Sturmfels}
%
%
\medskip
\noindent
%
%
{\bf How to Draw Tropical Planes}
%
%
\vskip 5mm
\noindent
%
%
%
%
The tropical Grassmannian parameterizes tropicalizations of ordinary
linear spaces, while the Dressian parameterizes all tropical linear
spaces in ${\Bbb T}{\Bbb P}^{n-1}$.  We study these parameter spaces
and we compute them explicitly for $n \leq 7$.  Planes are identified
with matroid subdivisions and with arrangements of trees.  These
representations are then used to draw pictures.

\bye

.
