Hostname: page-component-77c89778f8-n9wrp Total loading time: 0 Render date: 2024-07-20T20:18:01.912Z Has data issue: false hasContentIssue false

The Cauchy Problem for a Hyperbolic Second Order Equation with Data on the Parabolic Line

Published online by Cambridge University Press:  20 November 2018

M. H. Protter*
Affiliation:
University of California at Berkeley
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In this paper we consider the Cauchy problem for the equation

(1) h(x, y) K(y) vxxvyy + a(x, y) vx + b(x, y) vy + c(x, y) v + f(x, y) = 0

with initial values prescribed on a segment of the x-axis. The coefficients in (1) are assumed to possess two continuous derivatives with respect to x and one continuous derivative with respect to y in the closure of the domain under consideration.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1954

References

1. Berezin, I. S., On Cauchy's problem for linear equations of the second order with initial conditions on a parabolic line, Mat. Sbornik, 24 (1949) 301–320.Google Scholar
2. Bers, L., On the continuation of a potential gas flow across the sonic line, N.A.C.A. Technical Note 2058 (1950).Google Scholar
3. Conti, R., Sul problema di Cauchy per Vequazione y k2(x, y)zxx − zyy ; f(x, y, z, zx, zy), con i dati sulla linea parabolica, Annali di Matematica, 81 (1950) 303–326.Google Scholar
4. Frankl, F., On Cauchy's problem for partial differential equations of mixed elliptico'hyperbolic type with initial data on the parabolic line, Bull. Acad. Sci. URSS, Ser. Math., 8 (1944) 195–224.Google Scholar
5. Germain, P. and Bader, R., Solutions élémentaires de certaines équations aux dérivées partielles du type mixte, Bull. Soc. Math, de France, 81 (1953) 145–174.Google Scholar