130 citations · 223 across the 20 of their papers we have counts for
Showing 2026Show all
2 papers · 1 filter
math.NA2026
A note on short and long exact sequences in the BGG construction of complexes from complexes
Snorre H. Christiansen
We first show how the cohomology of some Bernstein-Gelfand-Gelfand (BGG) sequences that are important for the numerical analysis of partial differential equations, can be obtained…
math.NA2026
Regge metrics with enhanced trace
Snorre H. Christiansen, Ting Lin
We introduce variants of Regge finite element metrics with enhanced properties of the trace. In particular the trace operator is surjective to a finite element space of continuous…