Note on discontinuous trace approximation in the practical DPG method
Norbert Heuer, Michael Karkulik and Francisco-Javier Sayas
Comput. Math. Appl. 68, 1562-1568, 2014.
We analyze a non-conforming DPG method with discontinuous trace approximation
for the Poisson problem in two and three space dimensions.
We show its well-posedness and quasi-optimal convergence in the principal unknown.
Numerical experiments confirming the theory have been presented previously.