view 'hypergraph
|
diff
|
2010-05-10 00:44:12
- revision [
Version = 9
-->
Version 10
]
by
bci1
|
An \emph{incidence structure} is a subset $\I\subseteq\P\times\B$ with $\P$ and $\B$ being two disjoint sets; the elements of $\P$ are called {\bf points} and those of $\B$ are called
{\bf blocks}.
|
|
|
diff
|
2010-05-10 00:33:03
- revision [
Version = 7
-->
Version 8
]
by
bci1
|
\PMlinkescapeword{alphabets}
\PMlinkescapeword{block}
\PMlinkescapeword{blocks}
\PMlinkescapeword{combinations}
\PMlinkescapeword{constant}
\PMlinkescapeword{decompositions}
\PMlinkescapeword{difference}
\PMlinkescapeword{incident}
\PMlinkescapeword{incomplete}
\PMlinkescapeword{meet}
\PMlinkescapeword{order}
\PMlinkescapeword{orders}
\PMlinkescapeword{property}
\PMlinkescapeword{restricted}
\PMlinkescapeword{satisfies}
\PMlinkescapeword{simple}
\PMlinkescapeword{size}
\PMlinkescapeword{square}
\PMlinkescapeword{states}
\PMlinkescapeword{structure}
\PMlinkescapeword{term}
\PMlinkescapeword{type}
|
|
|
diff
|
2010-05-10 00:31:45
- revision [
Version = 6
-->
Version 7
]
by
bci1
|
A point $\0p$ and a block $\0b$ are said to be {\bf incident} if and only if $(\0p,\0b)\in\I$. The \emph{dual incidence structure}, $\I^*$, is the same structure with the labels ``point'' and ``block'' reversed. Every block $\0b$ has a set $\Pb\subseteq \P$ of points it is incident with. If $\Pbi\ne\Pbii$ whenever $\0b' \ne \0b''$, the incidence structure is said to be {\bf simple}.
|
|
|
diff
|
2010-05-10 00:07:57
- revision [
Version = 3
-->
Version 4
]
by
bci1
|
[ back to 'hypergraph' ]
\usepackage{graphicx}
\usepackage{amsmath}
\usepackage{bbm}
\newcommand{\Z}{\mathbbmss{Z}}
\newcommand{\C}{\mathbbmss{C}}
\newcommand{\R}{\mathbbmss{R}}
\newcommand{\Q}{\mathbbmss{Q}}
\newcommand{\mathbb}[1]{\mathbbmss{#1}}
\newcommand{\figura}[1]{\begin{center}\includegraphics{#1}\end{center}}
\newcommand{\figuraex}[2]{\begin{center}\includegraphics[#2]{#1}\end{center}}
|
|
|
