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Sergio Andrés Rojas Hernández

Profesor Asociado

Pontificia Universidad Católica de Valparaíso

Valparaíso, Chile

Numerical Analysis, Scientific Computing, Mathematical Modeling

Engineering Sciences , PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE. Chile, 2017
Engineering Sciences , PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE. Chile, 2017
Mathematics, UNIVERSITA DEGLI STUDI DI PAVIA. Italia, 2012
Mathematics, PONTIFICIA UNIVERSIDAD CATOLICA DE VALPARAISO. Chile, 2008

Research Associate Full Time

CURTIN UNIVERSITY OF TECHNOLOGY

Science and Engineering

Perth, Australia

2018 - 2021
Profesor Asociado Full Time

PONTIFICIA UNIVERSIDAD CATOLICA DE VALPARAISO

Facultad de Ciencias

Valparaíso, Chile

2021 - At present

Research Associate Full Time

CURTIN UNIVERSITY OF TECHNOLOGY

Perth, Australia

2018 - 2021
Profesor Asociado Full Time

Pontificia Universidad Católica de Valparaíso

Valparaíso, Chile

2021 - At present

Jorge Perera (Ongoing). Doctorado en Matemáticas en consorcio PUCV-UTFSM-UV.

2023
- Title: Stabilized Variational Physics-Informed Neural Networks.
Venue: A2S Group Seminar, AGH University of Science and Technology. Krakow, Poland

2022
- Title: A superconvergent adaptive stabilized finite element method based on residual minimization.
Venue: ECCOMAS 2022, Oslo, Noruega
- Title: Regularization of rough linear functionals and adaptivity
Venue: MINRES/LS-5, Santiago, Chile
- Title: VPINNs is actually a good method
Venue: Numerical Methods in Geophysics: Present, Future, and Applications, Valparaíso, Chile

2021
- Title: Projection in negative norms and the regularization of rough linear functionals.
Venue: 8th European Congress of Mathematics (8ECM). Online
- Title: Residual minimization for goal-oriented adaptivity.
Venue: SIAM Conference on Computational Sciences and Engineering (CSE21). Online
- Title: A superconvergent adaptive stabilized finite element method based on residual minimization.
Venue: MATHROCKS - HPC, Deep Learning, and Numerics in Geophysics. Bilbao, Spain

2020
- Title: Discontinuous Galerkin based residual minimization for goal-oriented adaptive mesh refinement.
Venue: Simulation and inversion methods in geophysics. Online

2019
- (Invited speaker) Title: Un método adaptativo estabilizado de elementos finitos basado en minimización residual.
Venue: XLV Semana de la matemática, PUCV. Valparaíso, Chile
- Title: Automatic variational stable finite element formulations.
Venue: Valparaiso’s Mathematics and its Applications Days (V-MAD 9). Valparaíso, Chile
- Title: Automatic variational stable finite element formulations: strong formulations.
Venue: Workshop on Numerical Analysis of Partial Differential Equations (WONAPDE 2019). Concepción, Chile

2018
- Title: A brief introduction to the numerical simulation of stochastic processes.
Venue: Summer school in complex systems, Instituto de Sistemas Complejos de Valparaíso (ISCV). Valparaíso, Chile

2017
- Title: An efficient 1.5D Galerkin method for geophysics.
Venue: Valparaiso’s Mathematics and its Applications Days (V-MAD 7). Valparaíso, Chile

Beca de Magister de Gestion propia

FONDECYT

Chile, 2008

Conicyt fellowship for master studies overseas
Beca de estudios de doctorado en Chile

FONDECYT

Chile, 2012

Conicyt fellowship for PhD studies in Chile


Quasi-optimal hp-finite element refinements towards singularities via deep neural network prediction Sluzalec, Tomasz; Grzeszczuk, Rafal; Rojas, Sergio; Dzwinel, Witold; Paszynski, Maciej Article ISI COMPUTERS & MATHEMATICS WITH APPLICATIONS (2023)
A study of efficient concurrent integration methods of B-Spline basis functions in IGA-FEM Wozniak, Maciej; Szyszka, Anna; Rojas, Sergio Article ISI JOURNAL OF COMPUTATIONAL SCIENCE (2022)
Incompressible flow modeling using an adaptive stabilized finite element method based on residual minimization Kyburg, Felix E.; Rojas, Sergio; Calo, Victor M. Article ISI INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (2022)
Projection in negative norms and the regularization of rough linear functionals Millar, F.; Muga, I; Rojas, S.; Van der Zee, K. G. Article ISI NUMERISCHE MATHEMATIK (2022)
A nonlinear weak constraint enforcement method for advection-dominated diffusion problems Cier, Roberto J.; Rojas, Sergio; Calo, Victor M. Article ISI MECHANICS RESEARCH COMMUNICATIONS (2021)
Automatically adaptive stabilized finite elements and continuation analysis for compaction banding in geomaterials Cier, Roberto J.; Poulet, Thomas; Rojas, Sergio; Veveakis, Manolis; Calo, Victor M. Article ISI INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (2021)
Automatically adaptive, stabilized finite element method via residual minimization for heterogeneous, anisotropic advection-diffusion-reaction problems Cier, Roberto J.; Rojas, Sergio; Calo, Victor M. Article ISI COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2021)
DGIRM: Discontinuous Galerkin based isogeometric residual minimization for the Stokes problem Los, Marcin; Rojas, Sergio; Paszynski, Maciej; Muga, Ignacio; Calo, Victor M. Article ISI JOURNAL OF COMPUTATIONAL SCIENCE (2021)
Goal-oriented adaptivity for a conforming residual minimization method in a dual discontinuous Galerkin norm Rojas, Sergio; Pardo, David; Behnoudfar, Pouria; Calo, Victor M. Article ISI COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2021)
An adaptive stabilized conforming finite element method via residual minimization on dual discontinuous Galerkin norms Calo, V. M.; Ern A.; Muga I.; Rojas S. Article ISI SCOPUS COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING (2020)
AN OPEN-SYSTEM APPROACH TO COMPLEX BIOLOGICAL NETWORKS Rebolledo, Rolando; Navarrete, Sergio A; Kéfi, Sonia; Rojas, Sergio.; MARQUET, Pablo A. Article ISI SCOPUS SIAM JOURNAL ON APPLIED MATHEMATICS (2019)
THE OUTGOING TIME-HARMONIC ELECTROMAGNETIC WAVE IN A HALF-SPACE WITH NON-ABSORBING IMPEDANCE BOUNDARY CONDITION Rojas, Sergio.; Muga, Ignacio; Jerez-Hanckes, Carlos Article ISI SCOPUS ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE (2019)
A Numerical 1.5D Method for the Rapid Simulation of Geophysical Resistivity Measurements Shahriari, M; Rojas, S; Pardo D.; Rodriguez-Rozas, A; Bakr, SA; Calo, VM; Muga I. Article WOS-ESCI SCOPUS GEOSCIENCES (2018)
On an equivalent representation of the Greens function for the Helmholtz problem in a non-absorbing impedance half-plane Rojas, S; Hein, R; Duran, M Article ISI SCOPUS COMPUTERS & MATHEMATICS WITH APPLICATIONS (2018)
A quadrature-free method for simulation and inversion of 1.5D direct current (DC) borehole measurements Rojas, Sergio; Muga, Ignacio; Pardo, David Article ISI SCOPUS COMPUTATIONAL GEOSCIENCES (2016)