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math.NA2023
Fine error bounds for approximate asymmetric saddle point problems
Vitoriano Ruas
The theory of mixed finite element methods for solving different types of elliptic partial differential equations in saddle point formulation is well established since many decades…
math.NA2023
A variant of the Raviart-Thomas method for smooth domains with straight-edged triangles
Fleurianne Bertrand, Vitoriano Ruas
Several physical problems modeled by second-order elliptic equations can be efficiently solved using mixed finite elements of the Raviart-Thomas family RTk for N-simplexes, introdu…