Anisotropic interpolation with applications to the finite element method. - Thomas Apel; Manfred Dobrowolski (Computing, 1992)

A compact, high-gain, 2-20-GHz MMIC amplifier. - Thomas Apel; S. Ludvik (IEEE J. Solid State Circuits, 1992)

Implementation and performance analysis of a mac protocol for an ATM network. - Thomas Apel; Chris Blondia; Olga Casals; Jordi Garcia; Kerstin Uhde (Architecture and Protocols for High-Speed Networks, 1993)

Anisotropic Interpolation Error Estimates for Isoparametric Quadrilateral Finite Elements. - Thomas Apel (Computing, 1998)

Crouzeix-Raviart type finite elements on anisotropic meshes. - Thomas Apel; Serge Nicaise; Joachim Schöberl (Numerische Mathematik, 2001)

Multigrid Methods for Anisotropic Edge Refinement. - Thomas Apel; Joachim Schöberl (SIAM J. Numer. Anal., 2002)

Transformation of Hexaedral Finite Element Meshes into Tetrahedral Meshes According to Quality Criteria. - Thomas Apel; N. Düvelmeyer (Computing, 2003)

Stability of discretizations of the Stokes problem on anisotropic meshes. - Thomas Apel; H. Maharavo Randrianarivony (Math. Comput. Simul., 2003)

Anisotropic error estimates for an interpolant defined via moments. - Gabriel Acosta; Thomas Apel; Ricardo G. Durán; Ariel L. Lombardi (Computing, 2008)

Nonconforming, Anisotropic, Rectangular Finite Elements of Arbitrary Order for the Stokes Problem. - Thomas Apel; Gunar Matthies (SIAM J. Numer. Anal., 2008)

LINFINITY-Error Estimates on Graded Meshes with Application to Optimal Control. - Thomas Apel; Arnd Rösch; Dieter Sirch (SIAM J. Control. Optim., 2009)

A 48-Core IA-32 message-passing processor with DVFS in 45nm CMOS. - Jason Howard; Saurabh Dighe; Yatin Vasant Hoskote; Sriram R. Vangal; David Finan; Gregory Ruhl; David Jenkins; Howard Wilson; Nitin Borkar; Gerhard Schrom; Fabric Pailet; Shailendra Jain; et al. (ISSCC, 2010)

A posteriori error estimation of residual type for anisotropic diffusion-convection-reaction problems. - Thomas Apel; Serge Nicaise; Dieter Sirch (J. Comput. Appl. Math., 2011)

Error estimates for Raviart-Thomas interpolation of any order on anisotropic tetrahedra. - Gabriel Acosta; Thomas Apel; Ricardo G. Durán; Ariel L. Lombardi (Math. Comput., 2011)

A Priori Mesh Grading for an Elliptic Problem with Dirac Right-Hand Side. - Thomas Apel; Olaf Benedix; Dieter Sirch; Boris Vexler (SIAM J. Numer. Anal., 2011)

A Priori Mesh Grading for Distributed Optimal Control Problems. - Thomas Apel; Dieter Sirch (Constrained Optimization and Optimal Control for Partial Differential Equations, 2012)

Finite element error estimates for Neumann boundary control problems on graded meshes. - Thomas Apel; Johannes Pfefferer; Arnd Rösch (Comput. Optim. Appl., 2012)

Crank-Nicolson Schemes for Optimal Control Problems with Evolution Equations. - Thomas Apel; Thomas G. Flaig (SIAM J. Numer. Anal., 2012)

Finite element error estimates on the boundary with application to optimal control. - Thomas Apel; Johannes Pfefferer; Arnd Rösch (Math. Comput., 2015)

On the Regularity of the Solutions of Dirichlet Optimal Control Problems in Polygonal Domains. - Thomas Apel; Mariano Mateos; Johannes Pfefferer; Arnd Rösch (SIAM J. Control. Optim., 2015)

Error estimates for Neumann boundary control problems with energy regularization. - Thomas Apel; Olaf Steinbach; Max Winkler (J. Num. Math., 2016)

Adapted Numerical Methods for the Poisson Equation with L2 Boundary Data in NonConvex Domains. - Thomas Apel; Serge Nicaise; Johannes Pfefferer (SIAM J. Numer. Anal., 2017)

Preface. - Thomas Apel; Olaf Steinbach (Comput. Vis. Sci., 2018)

Regularity of the solution of the scalar Signorini problem in polygonal domains. - Thomas Apel; Serge Nicaise (CoRR, 2019)

A nonconforming pressure-robust finite element method for the Stokes equations on anisotropic meshes. - Thomas Apel; Volker Kempf; Alexander Linke; Christian Merdon (CoRR, 2020)

Pressure-robust error estimate of optimal order for the Stokes equations on domains with edges. - Thomas Apel; Volker Kempf (CoRR, 2020)

Brezzi-Douglas-Marini Interpolation of Any Order on Anisotropic Triangles and Tetrahedra. - Thomas Apel; Volker Kempf (SIAM J. Numer. Anal., 2020)

Isogeometric analysis of the Laplace eigenvalue problem on circular sectors: Regularity properties, graded meshes & variational crimes. - Thomas Apel; Philipp Zilk (CoRR, 2024)

Weak and very weak solutions of the Laplace equation and the Stokes system with prescribed regularity. - Thomas Apel; Katharina Lorenz; Serge Nicaise (CoRR, 2025)

Error Estimates and Graded Mesh Refinement for Isogeometric Analysis on Polar Domains with Corners. - Thomas Apel; Philipp Zilk (CoRR, 2025)