Piccinini, Livio C. Remarks on a uniqueness problem for dynamical systems. (English) Zbl 0464.34033 Boll. Unione Mat. Ital., V. Ser., A 18, 132-137 (1981). MSC: 37-XX 35A05 34A12 35A15 PDFBibTeX XMLCite \textit{L. C. Piccinini}, Boll. Unione Mat. Ital., V. Ser., A 18, 132--137 (1981; Zbl 0464.34033)
Piccinini, L. C. Non-surjectivity of \((\partial^2/\partial x^2)+(\partial^2/\partial y^2)\) as an operator on the space of analytic functions on \(\mathbb{R}^3\). (English) Zbl 0312.35021 Global Analysis Appl., internat. Sem. Course Trieste 1972, Vol. III, 85-91 (1974). MSC: 35E99 PDFBibTeX XML
Piccinini, Livio C.; Spagnolo, Sergio Una valutazione della regolarita delle soluzioni di sistemi ellittici variazionali in due variabili. (Italian) Zbl 0279.49014 Ann. Sc. Norm. Super. Pisa, Sci. Fis. Mat., III. Ser. 27(1973), 417-429 (1974). MSC: 49J45 35J20 PDFBibTeX XMLCite \textit{L. C. Piccinini} and \textit{S. Spagnolo}, Ann. Sc. Norm. Super. Pisa, Sci. Fis. Mat., III. Ser. 27, 417--429 (1974; Zbl 0279.49014) Full Text: Numdam EuDML
Piccinini, Livio C. Non surjectivity of the Cauchy-Riemann operator on the space of the analytic functions on \(\mathbb R^n\). Generalization to the parabolic operators. (English) Zbl 0264.35003 Boll. Unione Mat. Ital., IV. Ser. 7, 12-28 (1973). MSC: 35E99 35A20 PDFBibTeX XMLCite \textit{L. C. Piccinini}, Boll. Unione Mat. Ital., IV. Ser. 7, 12--28 (1973; Zbl 0264.35003)
Piccinini, Livio C.; Spagnolo, Sergio On the Hölder continuity of solutions of second order elliptic equations in two variables. (English) Zbl 0237.35028 Ann. Sc. Norm. Super. Pisa, Sci. Fis. Mat., III. Ser. 26, 391-402 (1972). MSC: 35J15 35D10 PDFBibTeX XMLCite \textit{L. C. Piccinini} and \textit{S. Spagnolo}, Ann. Sc. Norm. Super. Pisa, Sci. Fis. Mat., III. Ser. 26, 391--402 (1972; Zbl 0237.35028) Full Text: Numdam EuDML