title: Explanation for Malischewsky's approximate expression for the Rayleigh wave velocity.
abstract: An approach for obtaining approximations of the Rayleigh wave velocity created by the principle of least squares is introduced. In view of this approach, Malischewsky's approximation of the Rayleigh wave velocity for Poisson ratios v in the set of [-1, 0.5] proposed quite recently is explained. It is shown that Malischewsky's approximation obtained by trial and error is (almost) identical with the one established by this approach.
authors.affiliation: Faculty of Mathematics, Mechanics and Informatics, Hanoi University of Science, Thanh Xuan, Hanoi, Viet Nam. pcvinh@vnu.edu.vn <pcvinh@vnu.edu.vn>
authors.forename: Pham Chi
authors.initials: PC
authors.lastname: Vinh
authors.forename: Peter G
authors.initials: PG
authors.lastname: Malischewsky