\setlength{\parindent}{0pt}
\setlength{\parskip}{1em}

\newcommand\Tbb{\mathbb{T}}

\newcommand\average{-\!\!\!\!\!\!\int}

\newcommand\ft[1]{\widehat{#1}}
\DeclareMathOperator{\supp}{supp}
\DeclareMathOperator{\ess}{ess}
\DeclareMathOperator{\dist}{dist}

\newcommand\invft[1]{\glsref[invft_symbol]{\widecheck{#1}}}

\newcommand\ccinf{C_c^\infty}