Publicado por The Johns Hopkins Press, 1938
Librería: PRISCA, Paris, Francia
Original o primera edición
Couverture souple. Condición: Bon. Edition originale. In-8° broché, paginé de 257 à 512 - Articles originaux : An integro-differential boundary value problem. - A partial differential equation associated with Poisson's work on the theory of sound. - Integrals involving Legendre functions. - A note on an extension of Bernstein's theorem. - On the linearity of pencils of curves on algebraic surfaces. - Some singular poperties of conformal transformations between Riemannian spaces. - Surfaces whose asymptotic curves are twisted cubics. - On hypergroups, multigroups, and product system.