NOLTA SIMULATED SYSTEMS SOFTWARE
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One of the fundamental and key problems of wave theory is the analytical description of the diffraction by edged obstacles. Exact formulations for interesting complex 4-D physical structures do not exist today. The joint application of the solved "canonical problems", the high-frequency theory of diffraction, and the principle of locality has been and is used today. Key to this approach is that the resulting diffracted/scattered fields/waves can be added together at any given location. Depending on the structure of the 4-D object, this approach is not valid. And, these asymptotic methods and their corresponding results can not be accurately verified since the true results can not be obtained analytically.