Derivation of the Bohr-Sommerfeld Quantum, Conditions From an Asymptotic Solution, of the Schroedinger Equation. E-book. Formato PDF Joseph B. Keller   -  Forgotten Books, 2017  - 

We wish to examine the asymptotic behavior of the of (1) as Planck's constant h approaches zero. To this end we assume that as h approaches zero.

On Solutions of Nonlinear Wave Equations. E-book. Formato PDF Joseph Bishop Keller   -  Forgotten Books, 2017  - 

In r is defined by r2 (ac-92 (y-yl)2, while in (7) a denotes a unit vector and dco denotes the area element on the unit sphere n.

The Inverse Scattering Problem in Geometrical Optics and the Design of Reflectors: January, 1958. E-book. Formato PDF Joseph B. Keller   -  Forgotten Books, 2017  - 

In Fig. 3 this reflector is drawn, using (9) and (10) with the upper sign. Equation (1) can also be used to solve the direct problem of scattering.