共 50 条
- [21] RAY VECTOR-FIELDS [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1994, 11 (02): : 618 - 622
- [22] ON THE DIVERGENCE OF VECTOR-FIELDS [J]. COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE I-MATHEMATIQUE, 1990, 311 (12): : 793 - 795
- [28] Bounded polynomial vector fields in R2 and Rn [J]. JOURNAL OF DIFFERENTIAL EQUATIONS, 2020, 268 (08) : 4416 - 4422
- [29] QUADRATIC HAMILTONIAN VECTOR-FIELDS [J]. JOURNAL OF DIFFERENTIAL EQUATIONS, 1994, 107 (01) : 80 - 95