Gallavotti, Giovanni The development of perturbation theory of contemporary mechanics. (Italian) Zbl 0909.70017 Boll. Unione Mat. Ital., VII. Ser., A 11, No. 3, 649-665 (1997). Reviewer: V.Oproiu (Iaşi) MSC: 70H05 70F10 37J40 70-02 PDFBibTeX XMLCite \textit{G. Gallavotti}, Boll. Unione Mat. Ital., VII. Ser., A 11, No. 3, 649--665 (1997; Zbl 0909.70017)
Matzeu, M.; Scarascia, I. Convergence results for mountain pass periodic solutions of autonomous Hamiltonian systems. (English) Zbl 0868.58034 Boll. Unione Mat. Ital., VII. Ser., A 10, No. 2, 445-459 (1996). Reviewer: A.Szulkin (Stockholm) MSC: 37J35 53D17 58E05 70H05 37G99 34C25 PDFBibTeX XMLCite \textit{M. Matzeu} and \textit{I. Scarascia}, Boll. Unione Mat. Ital., VII. Ser., A 10, No. 2, 445--459 (1996; Zbl 0868.58034)
Furi, Massimo; Pera, Maria Patrizia On the notion of winding number for closed curves and applications to forced oscillations on even dimensional spheres. (English) Zbl 0804.58017 Boll. Unione Mat. Ital., VII. Ser., A 7, No. 3, 397-407 (1993). Reviewer: Yu.E.Gliklikh (Voronezh) MSC: 37J99 70F99 PDFBibTeX XMLCite \textit{M. Furi} and \textit{M. P. Pera}, Boll. Unione Mat. Ital., VII. Ser., A 7, No. 3, 397--407 (1993; Zbl 0804.58017)
Andres, Jan Several remarks to problem of Moser and conjecture of Mawhin. (English) Zbl 0830.70017 Boll. Unione Mat. Ital., VII. Ser., A 7, No. 3, 377-386 (1993). MSC: 70K40 PDFBibTeX XMLCite \textit{J. Andres}, Boll. Unione Mat. Ital., VII. Ser., A 7, No. 3, 377--386 (1993; Zbl 0830.70017)
Cantarelli, Giancarlo Stabilization of the equilibrium of holonomic systems by means of time- dependent dissipative forces. (Italian. English summary) Zbl 0758.70008 Boll. Unione Mat. Ital., VII. Ser., A 6, No. 2, 193-196 (1992). MSC: 70F20 70K20 PDFBibTeX XMLCite \textit{G. Cantarelli}, Boll. Unione Mat. Ital., VII. Ser., A 6, No. 2, 193--196 (1992; Zbl 0758.70008)
Girardi, Mario; Matzeu, Michele Some stability results on periodic Hamiltonian trajectories. (English) Zbl 0669.70022 Boll. Unione Mat. Ital., VII. Ser., A 2, No. 3, 383-390 (1988). MSC: 70K20 70H05 49S05 37G99 37J99 PDFBibTeX XMLCite \textit{M. Girardi} and \textit{M. Matzeu}, Boll. Unione Mat. Ital., VII. Ser., A 2, No. 3, 383--390 (1988; Zbl 0669.70022)