简介:Inthiswork,aSignoriniproblemwithCoulombfrictionintwodimensionalelasticityisconsidered.Basedonanewrepresentationofthederivativeofthedouble-layerpotential,theoriginalproblemisreducedtoasystemofvariationalinequalitiesontheboundaryofthegivendomain.Theexistenceanduniqueessofthissystemareestablishedforasmallfrictionalcoefficient.Theboundaryelementapproximationofthissystemispresentedandanerrorestimateisgiven.