Szukana fraza: [Abstract = "A relation connecting stress intensity factors \(SIF\) with displacement intensity factors \(DIF\) at the crack front is derived by solving a pseudodifferential equation connecting stress and displacement discontinuity fields for a plane crack in an elastic anisotropic medium with arbitrary anisotropy. It is found that at a particular point on the crack front, the vector valued SIF is uniquely determined by the corresponding DIF evaluated at the same point."]