\magnification=1200 \hsize=4in \overfullrule=0pt \input amssym %\def\frac#1 #2 {{#1\over #2}} \def\emph#1{{\it #1}} \def\em{\it} \nopagenumbers \noindent % % {\bf Serguei Norine and Xuding Zhu} % % \medskip \noindent % % {\bf Circular Degree Choosability} % % \vskip 5mm \noindent % % % % We extend a characterization of degree-choosable graphs due to Borodin, and Erd{\H{o}}s, Rubin and Taylor, to circular list-colorings. \bye .