P R O G R A M for "DAY on DIFFRACTION'99" International Seminar June 1 - 3, 1999, St.PEtersburg, Russia ====================================================================== Tuesday, June 1, 1999 St.Petersburg Branch of Steclov's Math. Inst. (27 Fontanka Quay) ====================================================================== 8:30 - 9:30 am REGISTRATION/COFFEE 9:30 WELCOME, Hall 1 L.A.Verbitskaya, Rector of St.Petersburg Univ. 275th Anniversary of Russian Academy of Science and of St.Petersburg University ---------------------------------------------------------------------- 10:00 - 11:00 am SESSION: HIGH FREQUENCY TECHNIQUES Hall 1 Chair: S.Yu.Dobrokhotov ---------------------------------------------------------------------- 10:00 - 10:30 V.M.Babich A Moving Source of High-Frequency Oscillations. The Case of a Supersonic Source Velocity 10:30 - 11:00 V.S.Buldyrev, T.V.Molokova Electromagnetic Waves Propagation in a Weakly Chiral Medium ---------------------------------------------------------------------- ---------------------------------------------------------------------- 10:00 - 11:00 am SESSION: INVERSE PROBLEMS Hall 2 Chair: ---------------------------------------------------------------------- 10:00 - 10:30 Yu.V.Kiselev, V.N.Troyan Restoration of Elastic and Velocity Parameters in Diffraction Tomography 10:30 - 11:00 P.Harris, T.Pokrovskaia Least-Squares Based Technique for Multiples Attenuating (LEMUR) ********************************************************************** 11:00 - 11:30 am COFFEE BREAK ********************************************************************** ---------------------------------------------------------------------- 11:30 - 13:00 am SESSION: QUANTUM SCATTERING Hall 1 Chair: V.M.Babich ---------------------------------------------------------------------- 11:30 - 12:00 J.Bruening, S.Yu.Dobrokhotov Averaging and Semi-Classical Spectrum of 2-D Quantum Particle in High Magnetic and Periodic Electric Fields 12:00 - 12:30 P.Exner Magnetoresonaces in an Open Quantum Dot 12:30 - 13:00 L.A.Dmitrieva, D.D.Gushin, Yu.A.Kuperin Resonances and Generalized Spectral Decomposition: Application to Some Chaotic Maps ---------------------------------------------------------------------- ---------------------------------------------------------------------- 11:30 - 13:00 am SESSION: WATER WAVES (I) Hall 2 Chair: ---------------------------------------------------------------------- 11:30 - 12:00 A.V.Klimenko The Two-Dimensional Neumann-Kelvin Problem for an Interface-Intersecting Body in a Two-Layer Fluid 12:00 - 12:30 O.V.Motygin, A.V.Klimenko On the Non-Uniqueness in the 2D Linear Problem of a Two-Layer Flow about Interface-Piercing Bodies 12:30 - 13:00 G.X.Wu Analysis of Water Wave Radiation and Diffraction by a Sphere Based on Multipole Technique ********************************************************************** 1:00 - 2:00 pm LUNCH ********************************************************************** ---------------------------------------------------------------------- 2:00 - 3:30 pm SESSION: ELASTIC WAVES Hall 1 Chair: A.P.Kiselev ---------------------------------------------------------------------- 2:00 - 2:30 A.P.Kiselev The Effects of Weak Anisotropy and Smooth Inhomogeneity on Dilatation of Elastic S-Waves 2:30 - 3:00 P.V.Krauklis, L.A.Krauklis Slow Wave Diffraction at a Borehole 3:00 - 3:30 M.M.Popov, I.N.Schitov What May Happen if the Velocities of qS Waves in an Anisotropic Inhomogeneous Medium Coincide at a Point on a Ray? ---------------------------------------------------------------------- ---------------------------------------------------------------------- 2:00 - 3:30 pm SESSION: ACOUSTIC SCATTERING Hall 2 Chair: ---------------------------------------------------------------------- 2:00 - 2:30 V.D.Luk'yanov, G.L.Nikitin Radiation of Acoustic Waves by Elastic Cylindrical Shell in Angular Area 2:30 - 3:00 A.V.Shanin An Extension of Wiener-Hopf Method: Ordinary Differential Equations Associated with Diffraction Problems 3:00 - 3:30 I.A.Dorodnova Modeling of Broadband Acoustic Scattering from Fish ********************************************************************** 3:30 - 4:00 pm COFFEE BREAK ********************************************************************** ---------------------------------------------------------------------- 4:00 - 5:30 pm SESSION: ELECTROMAGNETIC SCATTERING (I) Hall 1 Chair: M.A.Lyalinov ---------------------------------------------------------------------- 4:00 - 4:30 H.Haddar, P.Joly Scattering of Electromagnetic Waves by Thin Ferromagnetic Coatings 4:30 - 5:00 V.V.Yatsenko, S.I.Maslovski Electromagnetic Diffraction by Double Arrays of Dipole Scatterers 5:00 - 5:30 A.S.Il'inski, A.B.Samokhin, U.U.Kapustin Volume Integral Equations in 2D And 3D Magneto-Dielectric Scattering Problems ---------------------------------------------------------------------- ---------------------------------------------------------------------- 4:00 - 5:30 pm SESSION: ORDINARY DIFFERENTIAL EQUATIONS Hall 2 Chair: S.Yu.Slavyanov ---------------------------------------------------------------------- 4:00 - 4:30 S.Yu.Slavyanov Recurrent calculations of multipole matrix elements 4:30 - 5:00 A.Ya.Kazakov Coalescence of Two Regular Singularities into One Regular Singularity for the Linear Ode 5:00 - 5:30 A.J.Akbarfam, E.Pourreza A Research Note on the Second Order Differential Equation ====================================================================== Wednesday, June 2, 1999 St.Petersburg Branch of Steclov's Math. Inst. (27 Fontanka Quay) ====================================================================== ---------------------------------------------------------------------- 9:00 - 10:30 am SESSION: NONLINEAR ANALYSIS Hall 1 Chair: P.I.Naumkin ---------------------------------------------------------------------- 9:00 - 9:30 N.Hayashi, P.I.Naumkin On the Davey-Stewartson and Ishimori Systems 9:30 - 10:00 N.Hayashi, E.I.Kaikina, R.Manzo On the Existence of Solutions to the Nonlocal Whitham Equation on Half-Line 10:00 - 10:30 N.Hayashi, P.I.Naumkin On the Large Time Asymptotics of Solutions to the Modified Korteweg-deVries Equation ---------------------------------------------------------------------- ---------------------------------------------------------------------- 9:00 - 10:30 am SESSION: ANTENNAE AND WAVES EXCITATION Hall 2 Chair: V.V.Borisov ---------------------------------------------------------------------- 9:00 - 9:30 V.V.Borisov Formation of Waves by a Source Distributed on Superluminal Circle 9:30 - 10:00 A.V.Kudrin, E.Yu.Petrov, T.M.Zaboronkova Current Behavior on a Perfectly Conducting Cylinder with a Feedpoint Excitation in an Anisotropic Medium 10:00 - 10:30 I.G.Kondrat'ev To the Theory of Thin Antenna with Dielectric Covering in Magnetoactive Plasma Medium ********************************************************************** 10:30 - 11:00 am COFFEE BREAK ********************************************************************** ---------------------------------------------------------------------- 11:00 - 12:30 am SESSION: ELECTROMAGNETIC SCATTERING (II) Hall 1 Chair: I.V.Andronov ---------------------------------------------------------------------- 11:00 - 11:30 I.V.Andronov On the Scattering by Small Inclusions in Electro-Magnetic Coatings 11:30 - 12:00 A.Kurokhtin Aberration Analysis of Realistic X-Ray Zone Plates 12:00 - 12:30 I.I.Simonenko Formation and Destruction of Waves with Singularities on the Spherical Wavefront ---------------------------------------------------------------------- ---------------------------------------------------------------------- 11:00 - 12:30 am SESSION: WAVES IN POROUS MEDIA Hall 2 Chair: P.V.Krauklis ---------------------------------------------------------------------- 11:00 - 11:30 K.Oleschko, F.Brambilla Dynamics of Electromagnetic Waves in Statistical Porous Fractal Media 11:30 - 12:00 L.A.Molotkov On Waves in Stratified Porous Medium With Sliding Contacts 12:00 - 12:30 P.V.Krauklis, A.P.Krauklis New Guided Wave in a Poroacoustic Layer ********************************************************************** 1:00 - 2:00 pm LUNCH ********************************************************************** ---------------------------------------------------------------------- 2:00 - 3:30 pm SESSION: GUIDED AND PARAXIAL WAVES (I) Hall 1 Chair: A.V.Popov ---------------------------------------------------------------------- 2:00 - 2:30 A.V.Popov, N.Y.Zhu Curved Oversized EM Waveguides: Adiabatic Modes and Parabolic Equation 2:30 - 3:00 N.Ya.Kirpichnikova, V.B.Philippov, A.S.Kirpichnikova Effects from Diffraction of Creeping Waves from a Line of a Saltus of a Curvature 3:00 - 3:30 Yu.A.Lavrov, V.D.Luk'yanov The Eigenwaves' Excitation in a Waveguide by a Resonance Radiator with Elastic Walls ---------------------------------------------------------------------- ---------------------------------------------------------------------- 2:00 - 3:30 pm SESSION: NONLINEAR EQUATIONS Hall 2 Chair: ---------------------------------------------------------------------- 2:00 - 2:30 E.Sh.Gutshabash Darboux transformation and exact solutions for the model of cylindrically symmetric chiral field 2:30 - 3:00 M.Boiti, F.Pempinelli, A.Pogrebkov, B.Prinari Backlund and Darboux transformations for the nonstationary Schrodinger equation 3:00 - 3:30 L.A.Dmitrieva, D.A.Pyatkin Spectral Properties of the Polar Operator with Finite-Gap Densities Associated with the Harry Dym Equation ********************************************************************** 3:30 - 4:00 pm COFFEE BREAK ********************************************************************** ---------------------------------------------------------------------- 4:00 - 5:30 pm SESSION: WAVES IN NON-STANDARD MEDIA Hall 1 Chair: I.V.Lindell ---------------------------------------------------------------------- 4:00 - 4:30 I.V.Lindell Electromagnetic Field and Source Decomposition in a Class Of Linear Media 4:30 - 5:00 A.L.Dyshko, N.B.Konyukhova, N.A.Voronov Evolution of spherical bubbles in the inflationary cosmology models with a scalar field 5:00 - 5:30 E.V.Aksenova, V.P.Romanov, A.Yu.Val'kov Green's Function of Electromagnetic Field in Cholesteric Liquid Crystals with Large-Scale Periodicity ---------------------------------------------------------------------- ---------------------------------------------------------------------- 4:00 - 5:30 pm SESSION: VIBRATION OF PLATES AND SHELLS Hall 2 Chair: D.P.Kouzov ---------------------------------------------------------------------- 4:00 - 4:30 D.P.Kouzov Transformation Matrix and the Law of Energy Con-Serve for the Inhomogeneous Wave Field Stimulation 4:30 - 5:00 D.P.Kouzov, N.A.Mirolubova Some New Aspects on the Energy Transport in the Thin-Wall Elastic Wave Guides 5:00 - 5:30 G.Filipenko, D.P.Kouzov The Influence of Fluid on the Reflection of Bending Wave in a Membrane From Rigid Bottom ====================================================================== Thursday, June 3, 1999 Inst. on Physics of St.Petersburg Univ. (Petrodvoretz campus) ====================================================================== ********************************************************************** TRANSPORTATION ********************************************************************** Conference bus: Departure 9:00 am from St.Petersburg Branch of Math. Inst. (27 Fontanka Quay) Public transportation: Yellow bus company "Alga" Departure each 20 min from the square in front of "Baltyiskii" train station (subway station: "Baltyiskaya") Destination: Institute on Physics Public transportation: Train Departure 9:20 am from "Baltyiskii" train station (subway station: "Baltyiskaya") Destination: University ********************************************************************** ---------------------------------------------------------------------- 10:30 - 12:00 am SESSION: WATER WAVES (II) Hall 1 Chair: M.P.Tulin ---------------------------------------------------------------------- 10:30 - 11:00 M.P.Tulin, J.J.Li The Nonlinear Evolution of Wind Driven, Breaking, Ocean Waves: Mathematical Description 11:00 - 11:30 T.Miloh Hydroelastic Vibrations of a Floating Plate 11:30 - 12:00 E.I.Yakubovich, D.A.Zenkovich Matrix Formulation of Hydrodynamic Equations: an Analytical Approach to Three-Dimensional Vorticity Dynamics ---------------------------------------------------------------------- ---------------------------------------------------------------------- 10:30 - 12:00 am SESSION: INTEGRAL REPRESENTATION APPROACHES Hall 2 Chair: ---------------------------------------------------------------------- 10:30 - 11:00 S.G.Vashtalov Plane-Wave Diffraction by a Wedge with Soft and Hard Faces 11:00 - 11:30 V.A.Doroshenko Nonstationary Radiation from the Slotted Circular Cone Placed on the Impedance Plane 11:30 - 12:00 S.V.Goldin, A.A.Duchkov Method of Discontinuities and Integral Presentation in the Analysis of Wave Field Dynamics ********************************************************************** 12:30 - 1:30 pm LUNCH ********************************************************************** ---------------------------------------------------------------------- 1:30 - 3:00 pm SESSION: POST-DEADLINE SUBMISSIONS Hall 1 Chair: V.E.Grikurov ---------------------------------------------------------------------- 1:30 - 2:00 D.Jeffrey A New Special Function in Physics: Lambert W 2:00 - 2:30 A.L.Il'in, S.V.Zakharov Asymptotics of a Solution of a Quasilinear Parabolic Equation Near the Line of Weak Discontinuity 2:30 - 3:00 D.V.Kirianov Regularization Technique in Ray Geophysical Tomography ---------------------------------------------------------------------- ---------------------------------------------------------------------- 1:30 - 3:00 pm SESSION: NON-STATIONARY PROBLEMS Hall 2 Chair: ---------------------------------------------------------------------- 1:30 - 2:00 A.G.Nerukh, I.V.Scherbatko, K.M.Yemelyanov Intermittency of Electromagnetic Waves in Initial Problem with Time-Varying Parameters 2:00 - 2:30 G.I.Mikhasev Wave Packets in Non-Homogeneous Elastic Media 2:30 - 3:00 Reserved ********************************************************************** 3:00 - 3:30 pm COFFEE ********************************************************************** ********************************************************************** 3:30 - 6:30 pm EXCURSION TO PETRODVORETZ GARDENS ********************************************************************** ********************************************************************** 6:30 pm PICNIC PARTY **********************************************************************