... and his footprints 

the famous Nitsche trick was first published in

Nitsche J. A., Ein Kriterium fuer die Quasi-Optimalitaet des Ritzschen Verfahrens.pdf [187.6 KB]

a (nearly, w/o early 1950th papers) complete reference list is given in:

Nitsche J. A., 1926-1996.pdf [3.6 MB]

 A "quasi-optimal" shift theorem for linear parabolic equations with appropriately defined norms in Hilbert scale framework  is proven in

Nitsche J. A., Wheeler M. F., L(infinity) boundedness of the finite element galerkin operator for parabolic problems.pdf [587.1 KB]

Stefan (non-linear parabolic) problem related papers are:

Nitsche J. A., 1978, Finite element approximations to the one dimensional Stefan problem.pdf [3.8 MB]

J.A. Nitsche A Finite Element Method for Parabolic Free Boundary Problems I.pdf [3.9 MB]

J.A. Nitsche A Finite Element Method for Parabolic Free Boundary Problems II.pdf [1.6 MB]

J.A. Nitsche Approximation des eindimensionalen Stefan-Problems durch finite Elemente.pdf [403.8 KB]

Nitsche J. A., The flow of two imiscible fluids in a one-dimensional porous medium and finite elements.pdf [2.1 MB]

Nitsche J. A., 1988, Direct Proofs of Some Unusual Shift-Theorems.pdf [2.9 MB]

Nitsche J. A., Free boundary problems for Stokes´s flows and finite element methods.pdf [463.8 KB]

Some additional  papers:

Nitsche J. A., Wheeler M. F., L(infinite) boundedness of the finite element galerkin operator for parabolic problems.pdf [610.2 KB]

Nitsche J. A., Schauder estimates for finite element approximations on second order elliptic boundary problems I.pdf [3.8 MB]

Nitsche J. A., Schauder estimates for finite element approximations on second order elliptic boundary problems II.pdf [218.1 KB]

Nitsche J. A., On L (infinite) convergence of finite element approximations to the solution of a nonlinear boundary value problem.pdf [1.3 MB]

Nitsche J. A., Ueber L(infinity) Abschaetzungen von Projektionen auf Finite Elemente.pdf [2.8 MB]

Nitsche J. A., L(infinity) convergence of finite element Galerkin approximations for parabolic problems.pdf [1.6 MB]

Nitsche J. A., Interior error estimates for semi-discrete Galerkin approximations for parabolic equations.pdf [394.9 KB]

Nitsche J. A., Interior estimates for the Ritz-Galerkin Methods.pdf [1.7 MB]

Nitsche J. A., Finite Elements Method for Conformal Mappings.pdf [2.9 MB]

Nitsche J. A., Ueber ein Variationsprinzip zur Loesung von Dirichlet-Problemen bei Verwendung von Teilraeumen, die keinen Randbedingungen unterworfen sind (2).pdf [1.6 MB]

Nitsche J. A., Finite Element Approximations for Solving the Elastic Problem.pdf [809.8 KB]

Nitsche J. A., Least squares approximations to first order elliptic systems.pdf [1.5 MB]

Nitsche J. A., On Korn s second inequality.pdf [830.8 KB]

Nitsche J. A., On local approximation properties of L2-projection on spline subspaces.pdf [2.3 MB]

Nitsche J. A., Der Einfluss von Randsingularitaeten beim Ritzschen Verfahren.pdf [677.8 KB]

Nitsche J. A., lecture notes, nonlinear problems.pdf [214.7 KB]

in memory

hand written manuscript

Nitsche J. A., manuscript, Non linear problems.pdf [769.1 KB]

Nitsche J. A., Lineare Spline-Funktionen und die Methoden von Ritz fuer elliptische Randwertprobleme.pdf [377.4 KB]

Nitsche J. A., lecture notes, linear spaces I.pdf [3.8 MB]

Nitsche J. A., lecture notes, linear spaces II.pdf [1.3 MB]

Nitsche J. A., lecture notes, elliptic problems and Sobolev spaces.pdf [2.6 MB]

Nitsche J. A., lecture notes, finite elements I.pdf [3.9 MB]

Nitsche J. A., lecture notes, finite elements II.pdf [3.8 MB]

Nitsche J. A., lecture notes, finite elements III.pdf [2.1 MB]

Nitsche J. A., Lecture notes, Die Herleitung von Fehlerabschaetzungen fuer das Ritz-Verfahren.pdf [1.4 MB]

Nitsche J. A., Lecture notes, Weighted norms and L(infinity) FEM analysis.pdf [2.5 MB]

Nitsche J. A., L(infinity) Analysis for Finite Elements.pdf [3.8 MB]

Nitsche J. A., A remark on the inf-sup-condition in the Finite Element method.pdf [1.6 MB]

Nitsche J. A., Convergence of nonconforming methods I.pdf [3.8 MB]

Nitsche J. A., hand written manuscript L(infinity) FEM estimate for integral (model) equation of first kind (fundamental solution of the Laplacian on the boundary of the unit sphere).pdf [1.9 MB]

Nitsche J. A., The regularity of piecewise defined functions with respect to scales of Sobolev spaces.pdf [2 MB]

Nitsche J. A., Convergence of nonconforming methods II.pdf [2 MB]

Nitsche J. A.,Umkehrsaetze fuer Spline-Approximationen.pdf [1.2 MB]

The several lecture notes were planned to be published in a book. Its content was nearly finished up to the below status, still available to be published:

Nitsche J. A., book script content, Finite Elements.pdf [165.7 KB]