LENINGRAD UNIVERSITY. HERALD. MATHEMATICS, MECHANICS AND ASTRONOMY SERIES, VOL. 19, NO. 13, 1964: COLLECTION OF ARTICLES.

Abstract

Contents: Strict estimate of error of integration of differential equations by the Stormer method; One criterion of stability of Hill's equation; Asymptotic distribution of third order integral matrices; An approximate method of solution of dirichlet problem, and estimates of the rate of convergence of solution of difference equations to solutions of elliptic equations with discontinuous coefficients; Norms of linear polynomial operators in connection with problems of approximation of continuous functions; Certain theorems about probability search in a determined field; Nonstationary problem the dissipation of jet; Investigation of change of pressure along length and ends of the eiffel chamber of the supersonic wind tunnel; The turbulent boundary layer on a penetrable flat plate; Radiant gas flow near the stagnation point of a blunt-nosed body; Experimental investigation of the initial stage of stream formation; The question about sources of opacity of atmospheres of stars of late spectral classes; A point source in a semi-infinite medium bounded by a reflective surface; Application of methods of analytic dynamics in the theory of optimal transfers; Dividing partitions for certain families of measures; Flagtensor algebra; On absence of a positive discrete spectrum for the laplacian operator of the dirichlet problem in certain unbounded regions; One simple method of establishing independence of statistics; Nonstationary melting of bodies under the action of aerodynamic heating; Rotational motion of a sphere in a rare flow of high speed.

Document Details

Document Type
Technical Report
Publication Date
Apr 17, 1967
Accession Number
AD0662522

Entities

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Aerodynamic Heating
  • Boundary Layer
  • Difference Equations
  • Differential Equations
  • Equations
  • Equations Of State
  • Fluid Mechanics
  • Gas Flow
  • Mathematics
  • Mechanics
  • Stagnation Point
  • Supersonic Wind Tunnels
  • Turbulent Boundary Layer
  • Wind Tunnels

Fields of Study

  • Mathematics

Readers

  • Calculus or Mathematical Analysis
  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers