\beamer@slide {fig:h1}{4}
\beamer@slide {fig:h2}{4}
\beamer@slide {fig:homo}{4}
\beamer@slide {eq:pd}{13}
\beamer@slide {eq:ps}{13}
\beamer@slide {fig:r2}{15}
\beamer@slide {fig:r1}{15}
\beamer@slide {fig:rel}{15}
\beamer@slide {fig:heter}{22}
\beamer@slide {eq:perf}{22}