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math-ph2004
Modified Rayleigh Conjecture method for multidimensional obstacle scattering problems
S. Gutman, A. G. Ramm
The Rayleigh conjecture on the representation of the scattered field in the exterior of an obstacle is widely used in applications. However this conjecture is false for some ob…
math-ph2004
Low-Pass Filters: Commentary on a Remark by Feynman
A. G. Ramm, O. L. Weaver
In Feynman's lectures there is a remark about the limiting value of the impedance of an n-section ladder consisting of purely reactive elements (capacitances and inductances). The…