The first English presentation of the so-called Caratheodory theorem, of Greek mathematician Constantin Caratheodory's 1908 mathematical derivation of the second law or of the proof of the existence of a state function of quantities of heat, as found in chapter form given by Indian-born American astrophysicist Subrahmanyan Chandrasekhar in 1939. [4] |
“If a Pfaffian expression has the property that, in every neighborhood of a point P, there are points which cannot be connected to P along curves which satisfy the Pfaffian equation, dQ = 0, then the Pfaffian expression must admit an integrating denominator.”