References
- Agmon , S. 1965 . Lectures on Elliptic Boundary Value Problems , Van Nostrand .
- Boerner , H. 1955 . Darstellungen von Gruppen , Springer-Verlag . 1967
- Friedrichs , K.O. 1958 . Symmetric positive linear differential equations . Comm Pure Appl Math , 11 : 333 – 418 .
- Friedrichs , K.O. and Lax , P.D. 1965 . Boundary value problems for first order operators . Comm Pure Appl Math , 18 : 355 – 388 .
- Lax , P.D. and Phillips , R.S. 1960 . Local boundary conditions for dissipative symmetric linear differential operators . Comm Pure Appl Math , 13 : 427 – 455 .
- Stern , I. 1989 . Randwertaufgaben für verallgemeinetric Cauchy-Riemann-Systeme im Raum , Halle, Wittenberg : Martin-Luther-Universität . Dissertation A
- Stern , I. 1988 . “ Boundary value problems for generalized Cauchy-Riemann systems in the space ” . In Boundary Value and Initial Value Problems in Complex Analysis Studies in Complex Analysis and Its Applications to Partial Differentials Equations , Vol. 1 , Halle . Pitman Res Notes Math Ser 256, Longman Sci Tech, Harlow, 1991
- Stern , I. 1993 . On the existence of Fredholm boundary value problems for generalized Cauchy-Riemann sytems in the space . Complex Variables , 21 : 19 – 38 .
- Volevich , L.R. 1965 . The solvability of boundary value problems for general elliptic systems . Mat Sbor , 68 ( 110 ) : 373 – 416 . Russian, 3
- Wloka , J. 1982 . Partielle Differentialfleichungen , Leipzig : Teubner-Verlag .