A new mimetic iterative scheme for solving general biharmonic equations under Robin’s conditions is presented. This approach combines recently developed mimetic techniques for partial differential equations (PDEs) with an efficient iterative scheme based on a global conjugate gradient and a local preconditioned biconjugate gradient methods. The elegant matrix formulation of mimetic methods allo...

0

In many applications of tomography, the acquired projections are either limited in number or contain a significant amount of noise. In these cases, standard reconstruction methods tend to produce artifacts that can make further analysis difficult. Advanced regularized iterative methods, such as total variation minimization, are often able to achieve a higher reconstruction quality by exploiting...