共 50 条
- [1] GEOMETRY OF A QUADRATIC DIFFERENTIAL FORM JOURNAL OF THE SOCIETY FOR INDUSTRIAL AND APPLIED MATHEMATICS, 1962, 10 (04): : 751 - 755
- [4] The geometry of quadratic differential systems with a weak focus of second order INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, 2006, 16 (11): : 3127 - 3194
- [5] The geometry of quadratic differential systems with a weak focus of third order CANADIAN JOURNAL OF MATHEMATICS-JOURNAL CANADIEN DE MATHEMATIQUES, 2004, 56 (02): : 310 - 343
- [9] The Polyhedral Geometry of Truthful Auctions INTEGER PROGRAMMING AND COMBINATORIAL OPTIMIZATION, IPCO 2023, 2023, 13904 : 231 - 245