mjo-hurwitz.tex: new file for Hurwitz algebras (quaternions and octonions).
[mjotex.git] / mjo-topology.tex
1 %
2 % Standard topological operations.
3 %
4 \ifx\havemjotopology\undefined
5 \def\havemjotopology{1}
6
7
8 \ifx\operatorname\undefined
9 \usepackage{amsopn}
10 \fi
11
12 \input{mjo-common} % for \of, at least
13
14 % The ``interior of'' operator.
15 \newcommand*{\interior}[1]{ \operatorname{int}\of{{#1}} }
16
17 % The ``closure of'' operator.
18 \newcommand*{\closure}[1]{ \operatorname{cl}\of{{#1}} }
19
20 % And the ``boundary of'' operator.
21 \newcommand*{\boundary}[1]{ \operatorname{bdy}\of{{#1}} }
22
23
24 \fi