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Results: 3
ON THE EIGENVALUES OF THE OPERATOR SUM OF SQUARES OF VECTOR-FIELDS
Authors: LUO XB NIU PC
Citation: Xb. Luo et Pc. Niu, ON THE EIGENVALUES OF THE OPERATOR SUM OF SQUARES OF VECTOR-FIELDS, Chinese Science Bulletin, 43(3), 1998, pp. 263-263
EXISTENCE RESULTS FOR THE POSITIVE SOLUTIONS OF SEMILINEAR EQUATIONS ON THE HEISENBERG-GROUP
Authors: ZHANG JH NIU PC
Citation: Jh. Zhang et Pc. Niu, EXISTENCE RESULTS FOR THE POSITIVE SOLUTIONS OF SEMILINEAR EQUATIONS ON THE HEISENBERG-GROUP, Nonlinear analysis, 31(1-2), 1998, pp. 181-189
GENERALIZED LIE SYMMETRIES AND THE INTEGRABILITY OF GENERALIZED HOLMES-RAND NONLINEAR OSCILLATOR
Authors: QU CZ NIU PC
Citation: Cz. Qu et Pc. Niu, GENERALIZED LIE SYMMETRIES AND THE INTEGRABILITY OF GENERALIZED HOLMES-RAND NONLINEAR OSCILLATOR, International journal of non-linear mechanics, 32(6), 1997, pp. 1187-1192
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