  In the talk we investigate the question of commutation of the whole-partial
derivatives, which should be considered when the function, which is subjected
to differentiation, has both explicit and implicit dependence. We apply the
results to the quantum theories.
  --
  En la platica investigamos la cuestion de conmutacion de derivadas parciales
cuando la funcion sujeta a diferenciacion tiene dependencia tanto explicita
como implicita. Aplicamos los resultados a teorias cuanticas.
