A posteriori error estimates with point sources in fractional sobolev spaces. Numerical Methods for Partial Differential Equations, (33)4:1018--1042, 2017. [PUMA: Dirac Sobolev a adaptivity, element error estimators, finite fractional from:mhartmann ians mass, methods, posteriori spaces vorlaeufig] URL
A convergent time-space adaptive $dG(s)$ finite element method for parabolic problems motivated by equal error distribution. Submitted, 2017. [PUMA: a adaptivity, convergence, element equation error estimators, finite from:mhartmann heat ians methods, posteriori vorlaeufig] URL
Design and Convergence of AFEM in $H(div)$. Mathematical Models & Methods in Applied Sciences, (17)11:1849--1881, 2007. [PUMA: A convergence; error estimate; from:mhartmann ians multigrid oscillation; posteriori preconditioning reduction; vorlaeufig] URL
Convergence rates for adaptive finite elements. IMA J. Numer. Anal., (29)4:917--936, Oxford University Press, 2009. [PUMA: a adaptive elliptic equations error estimator, from:mhartmann ians mesh posteriori refinement, vorlaeufig]