PhD-year-1939

On the loci of the (K+1)-secant K-spaces of a curve in r-space

Raymond Kornelious Wakerling

Bing Chin Wong

1939

Read more about On the loci of the (K+1)-secant K-spaces of a curve in r-space

The problem of Plateau in hyperbolic space

Arvie Turner Lonseth

Hans Lewy

1939

Read more about The problem of Plateau in hyperbolic space

On the projective differential geometry of certain systems of linear homogeneous partial differential equations of the first order, with special applications to stratifiable congruences

Raymundo Acosta Favila

Pauline Sperry

1939

Read more about On the projective differential geometry of certain systems of linear homogeneous partial differential equations of the first order, with special applications to stratifiable congruences