morphism

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morphism

$\begin{usage} morphism~f\\ morphism($f, f^{-1}$)\\ morphism~g \end{usage}$

$\begin{signatures} morphism: & (R $\to$\ R) $\to$\ \%\\ morphism: & (R $\to$\... ..., \htmlref{\texttt{Integer}}{Integer}) $\to$\ R) $\to$\ \%\\\end{signatures}$

$\begin{params} {\em f} & R $\to$\ R & A function\\ $f^{-1}$\ & R $\to$\ R & T... ...(R, \htmlref{\texttt{Integer}}{Integer}) $\to$\ R & A function\\\end{params}$

$\begin{descr} morphism~f creates the morphism $\sigma$\ on $R$\ given by \begi... ...red invertible, so $g$\ must also be defined for negative integers. \end{descr}$

$\begin{remarks} % latex2html id marker 19775The maps passed as arguments must... ...d repeated iterations of $\sigma$, which is the default behavior. \end{remarks}$

Manuel Bronstein 2000-12-13