A sufficient condition for existence of real analytic solutions of P.D.E. with constant coefficients, in open sets of ${ℝ}^2$

Zampieri, Giuseppe

Rendiconti del Seminario Matematico della Università di Padova, Volume 63 (1980) p. 83-87

A link between $C^{\infty }$ and analytic solvability for P.D.E. with constant coefficients

Zampieri, Giuseppe

Rendiconti del Seminario Matematico della Università di Padova, Volume 63 (1980) p. 145-150

On some conjectures by E. De Giorgi relative to the global resolvability of overdetermined systems of differential equations

Zampieri, Giuseppe

Rendiconti del Seminario Matematico della Università di Padova, Volume 62 (1980) p. 115-128