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   137 

   138 \begin{abstract} -- enter abstract text here -- \end{abstract}

   138 \begin{abstract} -- enter abstract text here -- \end{abstract}

   139 

   139 

   140 

   140 

   141 %% When adding keywords, separate each term with a straight line: |

   141 %% When adding keywords, separate each term with a straight line: |

   143 

   143 

   144 %% Optional for entering abbreviations, separate the abbreviation from

   144 %% Optional for entering abbreviations, separate the abbreviation from

   145 %% its definition with a comma, separate each pair with a semicolon:

   145 %% its definition with a comma, separate each pair with a semicolon:

   146 %% for example:

   146 %% for example:

   147 %% \abbreviations{SAM, self-assembled monolayer; OTS,

   147 %% \abbreviations{SAM, self-assembled monolayer; OTS,

   156 %% \begin{acknowledgements}

   156 %% \begin{acknowledgements}

   157 %% Section head commands for your reference:

   157 %% Section head commands for your reference:

   158 %% \section{}

   158 %% \section{}

   159 %% \subsection{}

   159 %% \subsection{}

   160 %% \subsubsection{}

   160 %% \subsubsection{}

   163 

   161 

   164 \nn{

   162 \nn{

   165 background: TQFTs are important, historically, semisimple categories well-understood.

   163 background: TQFTs are important, historically, semisimple categories well-understood.

   166 Many new examples arising recently which do not fit this framework, e.g. SW and OS theory.

   164 Many new examples arising recently which do not fit this framework, e.g. SW and OS theory.

   167 These have more complicated gluing formulas (\cite{1003.0598,1005.1248}, etc); 

   165 These have more complicated gluing formulas (\cite{1003.0598,1005.1248}, etc);