Remark on local boundary regularity condition of a suitable weak solution to the 3D MHD equations

We study a local regularity condition for a suitable weak solution of the magnetohydrodynamics equations in a half space R-+(3). More precisely, we prove that a suitable weak solution is Holder continuous near boundary provided that the quantity lim sup (r -> 0) 1/root r parallel to parallel to u parallel to(L2)((Bx,r+))parallel to(L infinity()(t-r2,t)()) is sufficiently small near the boundary. Furthermore, we briefly add some global regularity criteria of weak solutions to this system.