On the preconditioning of the symmetric formulation for the EEG forward problem by leveraging on calderon formulas. - John Erick Ortiz Guzman; Axelle Pillain; Lyes Rahmouni; Francesco Paolo Andriulli (ISBI, 2016)

Fast boundary element formulations for electromagnetic modelling in biological tissues. (Formulations rapides aux éléments de frontière pour la modélisation électromagnétique dans les tissus biologiques). - John Erick Ortiz Guzman (2017)

A Calderon regularized symmetric formulation for the electroencephalography forward problem. - John Erick Ortiz Guzman; Axelle Pillain; Lyes Rahmouni; Francesco Paolo Andriulli (J. Comput. Phys., 2018)

On the Fast Direct Solution of a Preconditioned Electromagnetic Integral Equation. - Davide Consoli; Clément Henry; Alexandre Dély; Lyes Rahmouni; John Erick Ortiz Guzman; Tiffany L. Chhim; Simon B. Adrian; Adrien Merlini; Francesco Paolo Andriulli (CoRR, 2022)

A New Refinement-Free Preconditioner for the Symmetric Formulation in Electroencephalography. - Viviana Giunzioni; John Erick Ortiz Guzman; Adrien Merlini; Simon B. Adrian; Francesco Paolo Andriulli (CoRR, 2022)

On a Calderón preconditioner for the symmetric formulation of the electroencephalography forward problem without barycentric refinements. - Viviana Giunzioni; John Erick Ortiz Guzman; Adrien Merlini; Simon B. Adrian; Francesco Paolo Andriulli (J. Comput. Phys., 2023)