\figure{hexangle.eps}{\epsfxsize}{The construction from Remark~\ref{hexa}}
-\rem
-Minor-closed classes share many other interesting properties, for example bounded chromatic
-numbers of various kinds, as shown by Theorem 6.1 of \cite{nesetril:minors}. We can expect
-that many algorithmic problems will turn out to be easy for them.
-
%--------------------------------------------------------------------------------
\section{Iterated algorithms}\id{iteralg}%
practical applications (including the problem of designing electrical transmission
lines originally studied by Bor\o{u}vka). If we lift this restriction, we get
the problem known by the name Steiner tree.\foot{It is named after the Swiss mathematician
-Jacob Steiner who studied a~special case of this problem in the 19th century.}
+Jacob Steiner who studied a~special case of this problem in the 19th century.
+The complete problem can be traced to Jarn\'\i{}k and K\"ossler \cite{jarnik:steiner}
+and even to K.~F.~Gauss. See \cite{korte:jarnik} for its history.}
We can also define it in terms of graphs:
\defn A~\df{Steiner tree} of a~weighted graph~$(G,w)$ with a~set~$M\subseteq V$
@article{ nesetril:history,
author = "Jaroslav Ne{\v{s}}et{\v{r}}il",
title = "{Some remarks on the history of MST-problem}",
- journal = "Archivum Mathematicum",
+ journal = "Archivum Mathematicum (Brno)",
publisher = "Masaryk University",
address = "Brno, Czech Republic",
volume = "33",
@article { mm:mst,
author = "Martin Mare\v{s}",
title = "{Two linear time algorithms for MST on minor closed graph classes}",
- journal = "{Archivum Mathematicum}",
+ journal = "{Archivum Mathematicum (Brno)}",
publisher = "Masaryk University",
address = "Brno, Czech Republic",
volume = "40",
title={{Probability Theory of Classical Euclidean Optimization Problems}},
author={Yukich, J.E.},
year={1998},
- publisher={Springer},
- publisher = {Springer Verlag},
+ publisher={Springer Verlag},
volume={1675},
series={{Lecture Notes in Math}},
}
school={{Charles University in Prague, Faculty of Math and Physics}},
year={2008},
}
+
+@article{ jarnik:steiner,
+ author={Jarn\'\i{}k, V. and K\"ossler, M.},
+ title={O minim\' aln\'{\i}ch grafech obsahuj\'{\i}c\'{\i}ch danou mno\v zinu bod\accent23 u},
+ journal={\v Casopis pro p\v estov\'an\'\i{} matematiky},
+ volume={63},
+ year={1964},
+ pages={223--225},
+ note="In Czech"
+}
+
+@article{ korte:jarnik,
+ author={Korte, B. and Ne\v{s}et\v{r}il, J.},
+ title={{Vojt\v{e}ch Jarn\'\i{}k's work in combinatorial optimization}},
+ journal={Discrete Mathematics},
+ volume={235},
+ pages={1--17},
+ year={2001},
+}
When compared with the earlier surveys on the minimum spanning trees, most
notably Graham and Hell \cite{graham:msthistory} and Eisner \cite{eisner:tutorial},
this work adds many of the recent advances, the dynamic algorithms and
-also the relationship with computational models. It is based on the author's
-PhD thesis \cite{mm:thesis}.
+also the relationship with computational models. We tried to be self-contained
+and to include proofs of the main results, including the low-level details
+where they are important. This paper is based on a~part of the author's PhD thesis
+\cite{mm:thesis}.
\nota
We have tried to stick to the usual notation except where it was too inconvenient.