A PICONE IDENTITY FOR FIRST ORDER DIFFERENTIAL SYSTEMS

[1] FOURTH ORDER BOUNDARY VALUE PROBLEMS AND COMPARISON THEOREMS [J]. CANADIAN JOURNAL OF MATHEMATICS, 1961, 13 (04): : 625 - &

[2] BARRETT JH, 1955, PORT MATH, V14, P79

[3] A COMPARISON THEOREM FOR A CLASS OF NONLINEAR DIFFERENTIAL INEQUALITIES [J]. MONATSHEFTE FUR MATHEMATIK, 1968, 72 (02): : 133 - &

[4] Ince E., 1956, ORDINARY DIFFERENTIA

[5] KREITH K, 1968, ATTI ACCAD NAZ LIN, V45, P217

[6] A STURM THEOREM FOR STRONGLY ELLIPTIC SYSTEMS AND APPLICATIONS [J]. BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY, 1969, 75 (05) : 1025 - &

[7] KREITH K, TO BE PUBLISHED

[8] SOME ELEMENTARY STURM THEORY [J]. JOURNAL OF DIFFERENTIAL EQUATIONS, 1968, 4 (02) : 187 - &

[9] PICONE M, 1911, ATTI ACCAD LINCEI, V20, P341

[10] VARIATIONAL METHODS AND NON-OSCILLATION THEOREMS FOR SYSTEMS OF DIFFERENTIAL EQUATIONS [J]. DUKE MATHEMATICAL JOURNAL, 1952, 19 (02) : 311 - 322

[1] FOURTH ORDER BOUNDARY VALUE PROBLEMS AND COMPARISON THEOREMS [J]. CANADIAN JOURNAL OF MATHEMATICS, 1961, 13 (04): : 625 - &

[2] BARRETT JH, 1955, PORT MATH, V14, P79

[3] A COMPARISON THEOREM FOR A CLASS OF NONLINEAR DIFFERENTIAL INEQUALITIES [J]. MONATSHEFTE FUR MATHEMATIK, 1968, 72 (02): : 133 - &

[4] Ince E., 1956, ORDINARY DIFFERENTIA

[5] KREITH K, 1968, ATTI ACCAD NAZ LIN, V45, P217

[6] A STURM THEOREM FOR STRONGLY ELLIPTIC SYSTEMS AND APPLICATIONS [J]. BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY, 1969, 75 (05) : 1025 - &

[7] KREITH K, TO BE PUBLISHED

[8] SOME ELEMENTARY STURM THEORY [J]. JOURNAL OF DIFFERENTIAL EQUATIONS, 1968, 4 (02) : 187 - &

[9] PICONE M, 1911, ATTI ACCAD LINCEI, V20, P341

[10] VARIATIONAL METHODS AND NON-OSCILLATION THEOREMS FOR SYSTEMS OF DIFFERENTIAL EQUATIONS [J]. DUKE MATHEMATICAL JOURNAL, 1952, 19 (02) : 311 - 322