Contribution to the theory of certain nonlinear differential equations.
Series: Estudos, ensaios e documentos,; 73
Published: 1960
Place of publication: Lisboa
Language: eng
Number of pages: 125
Subjects: Oscillations.; Differential equations, Nonlinear.
Notes: Bibliography: p. 123-125.
Based in part on thesis, Harvard University.
At head of title: Junta de Investigações do Ultramar.
Summary in Portuguese and French.