% use options

%  '[beamer]' for a digital projector

%  '[trans]' for an overhead projector

%  '[handout]' for 4-up printed notes

\documentclass[beamer]{beamer}

% change talk_preamble if you want to modify the slide theme, colours, and settings for trans and handout modes.

\newcommand{\pathtotrunk}{../../}

\input{\pathtotrunk talks/talk_preamble.tex}

%\setbeameroption{previous slide on second screen=right}

\author[Scott Morrison]{Scott Morrison \\ \texttt{http://tqft.net/} \\ joint work with Kevin Walker}

\title{Blob homology, part $\mathbb{I}$}

\date{Homotopy Theory and Higher Algebraic Structures, UC Riverside, November 10 2009 \\ \url{http://tqft.net/UCR-blobs1}}

\begin{document}

\frame{\titlepage}

\begin{frame}

       \frametitle{Outline}

       \tableofcontents

\end{frame}

\beamertemplatetransparentcovered 

\mode<beamer>{\setbeamercolor{block title}{bg=green!40!black}}

\beamersetuncovermixins 

{\opaqueness<1->{60}} 

{} 

\section{Overview}

\AtBeginSection[]

{

   \begin{frame}<beamer>

       \frametitle{Outline}

       \tableofcontents[currentsection]

   \end{frame}

}

\begin{frame}{What is \emph{blob homology}?}

\begin{block}{}

The blob complex takes an $n$-manifold $M$ and an `$n$-category with strong duality' $\cC$ and produces a chain complex, $\bc_*(M; \cC)$.

\end{block}

\begin{tikzpicture}

\node (blobs) at (0,0) {$\bc_*(M; \cC)$};

\node (skein) at (3,0) {$A(M; \cC)$};

\node (hoch) at (0,3) {$HH_*(\cA)$};

\path[->]<1-> (blobs) edge (skein);

\end{tikzpicture}

\end{frame}

\end{document}

% ----------------------------------------------------------------