title: Dispersion relation for real-plane zeros as a concept of wave-front measurement.
abstract: The functional relationship between the phase logarithm and the amplitude logarithm of a wave function near its real-plane zero point is found. This result takes the form of the dispersion relation that is deduced analytically and supported by the numerical simulation of the light-wave propagation in an inhomogeneous medium. The sufficient and necessary conditions of existence of this relationship are discussed, and their validity for infinite spectra is shown.
authors.forename: V A
authors.initials: VA
authors.lastname: Tartakovski
authors.forename: N N
authors.initials: NN
authors.lastname: Mayer