Lefschetz, Solomon, 1884-1972.

Lectures on differential equations/ by Solomon Lefschetz. - Princeton, N.J.: London: Princeton University Press, 1946. - 2 p.l., [vii]-viii, 209 (i.e. 212) p.: diagrs., 23 cm. - Annals of mathematics studies; 14. .

a 46005010 //r90


Differential equations.

515.35