文摘
In this paper we establish the class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0021782415001634&_mathId=si1.gif&_user=111111111&_pii=S0021782415001634&_rdoc=1&_issn=00217824&md5=26152b201068f3022b1954d354354897" title="Click to view the MathML source">C1,βclass="mathContainer hidden">class="mathCode"> regularity of the regular part of the free boundary in the Signorini problem for elliptic operators with variable Lipschitz coefficients. This work is a continuation of the recent paper [12], where two of us established the interior optimal regularity of the solution. Two of the central results of the present work are a new monotonicity formula and a new epiperimetric inequality.