Local decay rates of best-approximation errors using vector-valued finite elements for fields with low regularity and integrable curl or divergence

Zhaonan Dong; Alexandre Ern; Jean-Luc Guermond

Comptes Rendus. Mathématique, Volume 361 (2023) no. 4 p. 723-736

Polynomial-degree-robust $H\left(\mathbf{curl}\right)$-stability of discrete minimization in a tetrahedron

Théophile Chaumont-Frelet; Alexandre Ern; Martin Vohralík

Comptes Rendus. Mathématique, Volume 358 (2020) no. 9 p. 1101-1110