| Abstract: | Summary. Using  Fortin operators we give a new proof of stability for Stenberg s family of BDMS elements in linear elasticity. Our approach yields the inf-sup condition with respect to the standard norms, which is indispensable for a posteriori error analysis. Furthermore our technique allows the construction of another family of finite elements strongly related to the classical PEERS element. The given estimates are robust for nearly incompressible materials.Mathematics Subject Classification (2000): 65N30, 65N15, 65F15 |
