Sequential approach to integrable distributions

Svetlana Mincheva-Kamińska

Abstract. The equivalence of various conditions for integrability of distributions is proved. The list of equivalent conditions given by P. Dierolf and J. Voigt in [3] is extended by adding several conditions in terms of extensions of linear continuous functionals defined on $\cal{D}$, with the topology of $\cal{B}$, to the space $\cal{B}$.