latex code for predefined functions in italic font

I know some latex codes \pi,\Pi,\prod for pi.

I want to know if there is any code that gives pi/prod or for that matter any predefined code (not letters) in latex.

I want code for pi that is slightly bent towards right.

\documentclass[article]{amsart}

\textheight 9.3in \textwidth 6.5in
\topmargin -1cm
\oddsidemargin-.5cm \evensidemargin -.5cm
\usepackage[all]{xy}\usepackage{amsmath,amsthm,amsfonts,amssymb}
\theoremstyle{definition}
\usepackage{hyperref}
\usepackage{mathrsfs}
\usepackage[all]{xy}
\begin{document}
$\pi \prod \Pi$
\end{document}


I want code to write that operator. I am not talking about that \Lambda

• Please post a MWE. – TeXnician Feb 19 '17 at 13:18
• Lowercase greek mathfonts are already italic. – Bernard Feb 19 '17 at 13:23
• @Bernard Please see the edited version – user43645 Feb 19 '17 at 13:32
• @TeXnician Please see the edited version. – user43645 Feb 19 '17 at 13:32

Under the default font choice, you get slanted uppercase Greek letters with \mathnormal:

\documentclass{article}

\begin{document}

$\langle\mathnormal{\Lambda}\alpha,\beta\rangle= \langle\alpha,\mathnormal{\Lambda}\beta\rangle$

$\pi\mathnormal{\Pi}$

\end{document}