On the degenerate hyperbolic Goursat problem for linear and nonlinear equations of Tricomi type

Fixed Point Equations and Nonlinear Eigenvalue Problems in Ordered Banach Spaces

Herbert Amann · SIAM Review · 1976 · 1.9K citations

Natural Sciences, Mathematics, Computational Mechanics +16

Variational Methods for the Study of Nonlinear Operators

E. H. Rothe, M. M. Vaĭnberg, L. M. Kantorovich et al. · American Mathematical Monthly · 1966 · 842 citations

Natural Sciences, Mathematics, Computational Mechanics +12

On cauchy's problem for hyperbolic equations and the differentiability of solutions of elliptic equations

Peter D. Lax · Communications on Pure and Applied Mathematics · 1955 · 148 citations

Natural Sciences, Mathematics, Differential Equations +12

MIXED EQUATIONS AND TRANSONIC FLOW

Cathleen S. Morawetz · Journal of Hyperbolic Differential Equations · 2004 · 112 citations

Natural Sciences, Mathematics, Physics +17

A maximum principle for a class of hyperbolic equations and applications to equations of mixed elliptic‐hyperbolic type

Shmuel Agmon, Louis Nirenberg, M. H. Frotter · Communications on Pure and Applied Mathematics · 1953 · 101 citations

Natural Sciences, Mathematics, Differential Equations +11