Rudolph Ernest Langer

1894 – 1968,

• Electromagnetic waves
• Frontiers of numerical mathematics
• On numerical approximation
• A first course in ordinary differential equations
• Boundary problems in differential equations
• Developments associated with a boundary problem not linear in the parameter
• Fourier's series
• Nonlinear problems
• On numerical approximation
• On the asymptotic solutions of a class of ordinary equations of the fourth order, with special reference to an equation of hydrodynamics
• On the asymptotic solutions of ordinary linear differential equations about a turning point
• On the asymptotic solutions of ordinary linear differential equations about a turning point / given by Rudolph E. Langer