数学物理学报(英文版) ›› 2012, Vol. 32 ›› Issue (5): 1759-1780.doi: 10.1016/S0252-9602(12)60139-8

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REGULARITY AND SYMMETRY OF SOLUTIONS OF AN INTEGRAL SYSTEM

陈晓莉1,2|杨健夫2*   

  1. 1. Department of Mathematics, Zhejiang University, Hangzhou 310027, China;
    2. Department of Mathematics, Jiangxi Normal University, Nanchang 330022, China
  • 收稿日期:2011-07-04 修回日期:2011-10-08 出版日期:2012-09-20 发布日期:2012-09-20
  • 通讯作者: 杨健夫,jfyang 2000@yahoo.com E-mail:littleli chen@163.com; jfyang 2000@yahoo.com
  • 基金资助:

    Chen research is supported by NSF of China (10961015) and Yang research is supported by NSF of China (10961016); the GAN PO555 Program of Jiangxi.

REGULARITY AND SYMMETRY OF SOLUTIONS OF AN INTEGRAL SYSTEM

 CHEN Xiao-Li1,2, YANG Jian-Fu2*   

  1. 1. Department of Mathematics, Zhejiang University, Hangzhou 310027, China;
    2. Department of Mathematics, Jiangxi Normal University, Nanchang 330022, China
  • Received:2011-07-04 Revised:2011-10-08 Online:2012-09-20 Published:2012-09-20
  • Contact: YANG Jian-Fu,jfyang 2000@yahoo.com E-mail:littleli chen@163.com; jfyang 2000@yahoo.com
  • Supported by:

    Chen research is supported by NSF of China (10961015) and Yang research is supported by NSF of China (10961016); the GAN PO555 Program of Jiangxi.

摘要:

In this paper, we are concerned with the regularity and symmetry of positive solutions of the following nonlinear integral system
u(x) = ∫Rn G (xy)v(y)q/|y| dy, v(x) = ∫Rn G (xy)u(y)p/|y| dy
for x ∈ Rn, where G (x) is the kernel of Bessel potential of order α, 0 ≤βα< n, 1 < p, q < n− β/β and 1 /p + 1+1/q + 1>nαβ/n.
We show that positive solution pairs (u, v) ∈ Lp+1(RnLq+1(Rn) are H¨older continuous, radially symmetric and strictly decreasing about the origin.

关键词: regularity, radially symmetry, Bessel kernel, nonlinear integral system

Abstract:

In this paper, we are concerned with the regularity and symmetry of positive solutions of the following nonlinear integral system
u(x) = ∫Rn G (xy)v(y)q/|y| dy, v(x) = ∫Rn G (xy)u(y)p/|y| dy
for x ∈ Rn, where G (x) is the kernel of Bessel potential of order α, 0 ≤βα< n, 1 < p, q < n− β/β and 1 /p + 1+1/q + 1>nαβ/n.
We show that positive solution pairs (u, v) ∈ Lp+1(RnLq+1(Rn) are H¨older continuous, radially symmetric and strictly decreasing about the origin.

Key words: regularity, radially symmetry, Bessel kernel, nonlinear integral system

中图分类号: 

  • 35J25