Karl Weierstraß - Vorlesungen über Variationsrechnung - 1927

A major mathematical work by Karl Weierstrass, edited and prepared for publication by Rudolf Rothe.
The book appeared as the seventh volume of the "Mathematical Works of Karl Weierstrass" with the involvement of a commission appointed by the Prussian Academy of Sciences.
The lectures treat the calculus of variations, a fundamental area of analysis with important applications in mathematics, physics, and mechanics.
This is the rare first edition from 1927 consisting of 324 pages.