%\magnification =\magstep1 \mathsurround0pt


\defenva{scholium}{\it}{\rm}{Scholium}
\defenva{empty}{\it}{\rm}{}
\defenva{observation}{\it}{\rm}{Observation}
%\defenva{note}{\it}{\rm}{Note}
\defenva{remark}{\it}{\rm}{Remark}
\defenva{remarks}{\it}{\rm}{Remarks}
\defenva{claim}{\it}{\rm}{Claim}
\defenva{examples}{\it}{\rm}{Examples}
\defenva{addendum}{\bf}{\it}{Addendum}
\defenva{comments}{\it}{\rm}{Comments}

%\newinsert\margin
%\dimen\margin=\maxdimen
%\count\margin=0 \skip\margin=0pt


\let\savegg\gg
\let\savell\ll
\def\gg{\mathclose{\savegg}}
\def\ll{\mathopen{\savell}}
\def\grad{\mathop{\hbox{\rm grad}}}
\vsize=20cm
\def\tr{\mathop{tr}}
\def\rk{\mathop{rk}}
\def\id{{\rm\mathop{id}}}
\def\Im{{\rm Im}}

%\def\Max{{\rm Max}}
\def\Max{\max}

\def\ind{{\rm ind}}
\def\Ker{{\rm Ker~}}
\def\GL{{\rm GL}}
\def\Char{{\rm char}\,}
\def\an{\scriptstyle {\rm an}}
\def\ng{{\rm ng}}
\def\SP{{\rm SP}}
\def\Hom{{\rm Hom}}
\def\diag{\mathop{diag}}

%\def\Min{{\rm Min}}
\def\Min{\min}


\def\Nil{{\rm Nil}\,}
\def\Ann{{\rm Ann}}
\def\Inv{{\rm Inv}\,}
\def\Hom{{\rm Hom}}
\def\supp{{\rm supp}\,}
\def\Sat{{\rm Sat}}
\def\Spev{{\rm Spev}}
\def\Spec{{\rm Spec}\,}
\def\Sper{{\rm Sper}}
\def\Quot{{\rm Quot}}
\def\qed{\hskip0pt\hbox{}\nobreak\hfill $\square$}
\def\ccdot{\mathpunct{\cdot \cdot}}
\def\Arf{{\rm Arf}}
\def\o{{\nam o}}
\def\vf{\varphi}
\def\ord{{\rm ord}}
\def\Pol{{\rm Pol}}
\def\sq{{\rm sq}}

\def\Wq{W\!q}
%\def\Wq{W_q}

\def\eop{~~\vrule height 5 pt width 5 pt depth 0 pt\relax}

%\def\newbot{\mathop{{\lower9pt\hbox{$\scriptstyle\vert$} \atop \vrule width 0.5cm
%height0.2pt}}}

%\def\newbot{\mathop{\LARGE{\perp}}}
\def\newbot{\mathop{{\lower8pt\hbox{\bmatten?}}}}

\def\ve{{\scriptscriptstyle \vee}}
%\input amstex
%\input amssym.def
%\input amssym

%\baselineskip=15pt
\let\noi\noindent
%\footline={\hss}
%\headline={\hss\ifnum\pageno=-0\else\tenrm\folio\hss\fi}
%\headline={\hss\ifnum\pageno=-1\hss\else\tenrm\folio\hss\fi}
%\pageno=-1 \overfullrule=0pt
\font\large=cmbx10 scaled \magstep1
\font\Large=cmbx10 scaled \magstep3
\font\LARGE=cmbx12 scaled \magstep3
\font\small=cmbx7 scaled \magstep0
\font\smalla=cmr8 scaled \magstep0
\font\smallc=cmr6 scaled \magstephalf
\font\smallb=cmti8 scaled \magstep0
\font\fett=cmss12 scaled \magstep0
\font\gross=cmti12 scaled \magstep0

%\font\bm=msam10 scaled \magstep3

\def\square{{\vcenter{\vbox{\hrule height.4pt
           \hbox{\vrule width.4pt height  6pt \kern 6pt
           \vrule width.4pt}\hrule height.4pt}}}}


\def\litem{\par\noindent
           \hangindent=\parindent\ltextindent}
\def\litemitem{\par\noindent
           \hangindent=2\parindent\ltextindent}
\def\ltextindent#1{\hbox to \hangindent {#1\hss}\ignorespaces}


\font\namten=eufm10
\font\namseven=eufm7
\font\namfive=eufm5
\newfam\fnam
\textfont\fnam\namten \scriptfont\fnam\namseven
\scriptscriptfont\fnam\namfive

\def\nam#1{{\fam\fnam#1}}

\def\frac#1#2{{#1\over #2}}

\font\bmatten=cmsy10 scaled \magstep3
\font\bmatseven=cmsy7 scaled \magstep3
\font\bmatfive=cmsy5 scaled \magstep3
\newfam\bmat
\textfont\bmat\bmatten
\scriptfont\bmat\bmatseven
\scriptscriptfont\bmat\bmatfive

\def\Cal{\cal}


%Abbreviations

\def\qh{quadratically henselian}
\def\wrt{with respect to}
\def\ftsoc{for the sake of contradiction}
\def\wrtl{with respect to $\lambda$}
\def\GR{{\rm GR}}
\def\FR{{\rm FR}}
\def\nd{nondegenerate}
\def\rnd{reduced \nd}
\def\q{quadratic}
\def\qf{quadratic form}
\def\qm{quadratic module}
\def\qom{quadratic $\o$-module}
\def\qs{quadratic space}
\def\wo{weakly obedient}
\def\fc{$\vf$-conservative}
\def\iff{if and only if}
\def\sm{strongly multiplicative}
\def\Ip{In particular}
\def\sr{strictly regular}
\def\Pf{Pfister form}
\def\Pn{Pfister neighbour} 
\def\ql{quasi-linear}
\def\an{anisotropic}

%Definition of dangerous bend symbol
\font\manual=manfnt scaled 800
\def\danger{\raise5pt\hbox{\manual \char"7F}\ }

\def\Com{{\rm Com}}





%\baselineskip=13pt \noi Manfred Knebusch
%
%\noi Universit„t Regensburg
%
%\noi NWF I - Mathematik -
%
%\noi Universit„tsstr. 31 \hfill Very preliminary version
%\medskip\noi
%D-93040 Regensburg \hfill 13.09.1999
%
%\noi {\smalla email:
%Manfred.Knebusch{\char"40}mathematik.uni-regensburg.de}
%
%\vskip1.8cm\noi \centerline{\large Spezialisierung von
%quadratischen}
%\medskip\noi
%\centerline{\large und symmetrisch bilinearen Formen}
