Solving PDEs by variational physics-informed neural networks: an a posteriori error analysis Stefano Berrone, Claudio Canuto, Moreno Pintore (2022) Solving PDEs by variational physics-informed neural networks: an a posteriori error analysis, In: ANNALI DELL'UNIVERSITÀ DI FERRARA. SEZIONE 7: SCIENZE MATEMATICHE, pp. 575-595, ISSN: 0430-3202