𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The center and the fine focus for a class of quartic polynomial poincare equations

✍ Scribed by Tian De-sheng; Zheng Xian-wu; Yu Chang-chun; Li Pei-luan

Publisher
Wuhan University
Year
2004
Tongue
English
Weight
301 KB
Volume
9
Category
Article
ISSN
1007-1202

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Polynomial Bounds for the Solutions of a
Polynomial Bounds for the Solutions of a Class of Diophantine Equations
✍ Dimitrios Poulakis πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 320 KB

Let K be an algebraic number field such that all the embeddings of K into C are real. We denote by O K the ring of algebraic integers of K. Let F(X, Y) be an irreducible polynomial in K[X, Y ]&K[Y ] of total degree N and of degree n>0 in Y. We denote by F N (X, Y ) its leading homogeneous part. Supp

Fine topology and fine trace on the boun
Fine topology and fine trace on the boundary associated with a class of semilinear differential equations
✍ E. B. Dynkin; S. E. Kuznetsov πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 576 KB

We investigate the set of all positive solutions of a semilinear equation Lu = ψ(u) where L is a second-order elliptic differential operator in a domain E of R d or, more generally, in a Riemannian manifold and ψ belongs to a wide class of convex functions that contains ψ(u) = u α for all α > 1. We

Bifurcation of limit cycles at the equat
Bifurcation of limit cycles at the equator for a class of polynomial differential system
✍ Qi Zhang; Gui Weihua; Yirong Liu πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 English βš– 391 KB

In this paper, center conditions and bifurcation of limit cycles from the equator for a class of polynomial system of degree seven are studied. The method is based on converting a real system into a complex system. The recursion formula for the computation of singular point quantities of complex sys