|
|
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|
Successive
Versal Unfoldings for Rank-2 Singularities of Positive
Quadratic Differential forms (pages 285-307)
|
|
|
V. Guíñez
and E. Sáez
|
|
|
|
 |
Topological
Equivalence for Saddle Connections (pages
309-324)
|
|
|
C. Alonso |
|
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|
|
A
Polynomial Bound for the Lap Number (pages
325-329) |
|
|
M. Baillif
|
|
|
|
|
Center
Conditions for a Lopsided Quintic (pages 331-343) |
|
|
R. Pons and N. Salih
|
|
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Some
Lower Bounds for H(n) in Hilbert's (pages
345-360) |
|
|
Jibin Li, H.S.Y.
Chan and K.W. Chung
|
|
|
|
|
About
Homotopy Classes of non-Singular Vector Fields on the
Three-Sphere (pages 361-376) |
|
|
E. Dufraine
|
|
|
|
|
Computing
Simplest Normal Forms for the Takens--Bogdanov Singularity
(pages 377-435) |
|
|
A. Algaba, E. Freire
and E. Gamero
|
|
|
|
|
On
the Distribution and Number of Limit Cycles for Quadratic
Systems with Two Foci (pages 437-463) |
| |
Z. Pingguang |
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