This article gives an idea of consulting and advising services provided in various fields, issues their legal regulation, as well agreements on the provision these goals. We know that civil law, establishing framework relations regulated by this performance works differ. It is also established classification basis separation separate norms concerning contract for a fee. Consulting services, whi...

Abstract We study whether it is possible to apply twisted Laplace spectra (and, if so, how many are necessary) deduce isometry of some well-known examples isospectral manifolds in the literature, due Schüth (simply connected manifolds), Ikeda (lens spaces), Vignéras/Linowitz and Voight (arithmetic surfaces), Milnor (lattice examples), Doyle Rossetti (Tetra Didi), Sunada (based on group-theoreti...