A Pfaffian form on an open set in is a differential one-form
An equation of the form
is called a Pfaffian equation, and a collection
of such equations is a Pfaffian system.
A Pfaffian form on an open set in is a differential one-form
An equation of the form
is called a Pfaffian equation, and a collection
of such equations is a Pfaffian system.
Weisstein, Eric W. "Pfaffian Form." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/PfaffianForm.html