SOLVABILITY OF THE PERIODIC PROBLEM FOR NONLINEAR HAMILTONIAN-SYSTEMS

[1] SADDLE POINTS AND MULTIPLE SOLUTIONS OF DIFFERENTIAL-EQUATIONS [J]. MATHEMATISCHE ZEITSCHRIFT, 1979, 169 (02) : 127 - 166

[2] CRITICAL-POINT THEOREMS FOR INDEFINITE FUNCTIONALS [J]. INVENTIONES MATHEMATICAE, 1979, 52 (03) : 241 - 273

[3] CAPOZZI A, 1983, LECT NOTES MATH, V1017, P122

[4] Capozzi A., 1985, Meccanica, V20, P281, DOI 10.1007/BF02352680

[5] Kato T., 1972, TEORIYA VOZMUSHCHENI

[6] KHATKSEVICH VL, 1984, MATEM ZAMETKI, V36, P377

[7] KHATSKEVICH VL, 1986, ZONY REGULYARNOSTI S

[8] Krasnosel'skii M.A., 1966, INTEGRALNYE OPERATOR

[9] Perov A.I., 1984, SIB MAT ZH, V25, P106

[10] PEROV AI, 1983, TEORIYA OPERATOROV F, P72

[1] SADDLE POINTS AND MULTIPLE SOLUTIONS OF DIFFERENTIAL-EQUATIONS [J]. MATHEMATISCHE ZEITSCHRIFT, 1979, 169 (02) : 127 - 166

[2] CRITICAL-POINT THEOREMS FOR INDEFINITE FUNCTIONALS [J]. INVENTIONES MATHEMATICAE, 1979, 52 (03) : 241 - 273

[3] CAPOZZI A, 1983, LECT NOTES MATH, V1017, P122

[4] Capozzi A., 1985, Meccanica, V20, P281, DOI 10.1007/BF02352680

[5] Kato T., 1972, TEORIYA VOZMUSHCHENI

[6] KHATKSEVICH VL, 1984, MATEM ZAMETKI, V36, P377

[7] KHATSKEVICH VL, 1986, ZONY REGULYARNOSTI S

[8] Krasnosel'skii M.A., 1966, INTEGRALNYE OPERATOR

[9] Perov A.I., 1984, SIB MAT ZH, V25, P106

[10] PEROV AI, 1983, TEORIYA OPERATOROV F, P72