Hello,
I need to solve a problem involving functions belonging to an R space. 
For robustness, I need to use direct solvers for the linear part, but I'm getting the following:
ValueError: Monolithic matrix assembly is not supported for systems with R-space blocks.
Is there any way of doing this?
Any help would be appreciated
Regards
-- 
Roberto F. Ausas
Instituto de Ciências Matemáticas e de Computação - ICMC/USP
São Carlos, SP - Brasil