Add math delimiters in ikiwiki and mathjax

In my ikiwiki + pandoc + mathjax setup the delimiters $ for inline math and $$ for display math are currently recognized. How can I add additional delimiters, for example \( and \) for inline and \[ and \] for display math? Note that I already posted the same question on the ikiwiki forum but didn't receive an answer for a long time, so I try it here again.