Symmetry and regularity of solutions to a system with three-component integral equations

Consider the system with three-component integral equations {u(x) = integral(n)(R) vertical bar x-y vertical bar(alpha-n)w(y)(r)v(y)(q)dy, v(x) = integral(n)(R) vertical bar x-y vertical bar(alpha-n)u(y)(p)w(y)(r)dy, w(x) = integral(n)(R) vertical bar x-y vertical bar(alpha-n)v(y)(q)u(y)(p)dy, where 0 < alpha < n, n is a positive constant, p, q and r satisfy some suitable conditions. It is shown that every positive regular solution (u(x), v(x), w(x)) is radially symmetric and monotonic about some point by developing the moving plane method in an integral form. In addition, the regularity of the solutions is also proved by the contraction mapping principle. The conformal invariant property of the system is also investigated.