... and his footprints 

the famous Nitsche trick was first published in

Nitsche J. A., Ein Kriterium fuer die Quasi-Optimalitaet des Ritzschen Verfahrens.pdf (187.58KB)

Nitsche J. A., Ein Kriterium fuer die Quasi-Optimalitaet des Ritzschen Verfahrens.pdf (187.58KB)

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

Nitsche J. A., 1926-1996.pdf (3.61MB)

Nitsche J. A., 1926-1996.pdf (3.61MB)

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

Nitsche J. A., L(infinity) convergence of finite element Galerkin approximations for parabolic problems.pdf (1.57MB)

Nitsche J. A., L(infinity) convergence of finite element Galerkin approximations for parabolic problems.pdf (1.57MB)

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

Nitsche J. A., A Finite Element Method for Parabolic Free Boundary Problems I.pdf (3.94MB)

Nitsche J. A., A Finite Element Method for Parabolic Free Boundary Problems I.pdf (3.94MB)

Nitsche J. A., A Finite Element Method for Parabolic Free Boundary Problems II.pdf (1.58MB)

Nitsche J. A., A Finite Element Method for Parabolic Free Boundary Problems II.pdf (1.58MB)

Nitsche J. A., Approximation des eindimensionalen Stefan-Problems durch finite Elemente.pdf (403.81KB)

Nitsche J. A., Approximation des eindimensionalen Stefan-Problems durch finite Elemente.pdf (403.81KB)

J.A. Nitsche Free boundary problems for Stokes´s flows and finite element methods.pdf (463.77KB)

J.A. Nitsche Free boundary problems for Stokes´s flows and finite element methods.pdf (463.77KB)

Nitsche J. A., L(infinity) convergence of finite element Galerkin approximations for parabolic problems_1.pdf (1.57MB)

Nitsche J. A., L(infinity) convergence of finite element Galerkin approximations for parabolic problems_1.pdf (1.57MB)

J.A. Nitsche Direct Proofs of Some Unusual Shift-Theorems.pdf (2.9MB)

J.A. Nitsche Direct Proofs of Some Unusual Shift-Theorems.pdf (2.9MB)

Some additional  papers:

Nitsche J. A., Least squares approximations to first order elliptic systems.pdf (1.53MB)

Nitsche J. A., Least squares approximations to first order elliptic systems.pdf (1.53MB)

Nitsche J. A., Finite Element Approximations for Solving the Elastic Problem.pdf (809.75KB)

Nitsche J. A., Finite Element Approximations for Solving the Elastic Problem.pdf (809.75KB)

Nitsche J. A., 1982, Schauder estimates for finite element approximations on second order elliptic boundary problems I.pdf (3.83MB)

Nitsche J. A., 1982, Schauder estimates for finite element approximations on second order elliptic boundary problems I.pdf (3.83MB)

Nitsche J. A., A remark on the inf-sup-condition in the Finite Element method.pdf (1.58MB)

Nitsche J. A., A remark on the inf-sup-condition in the Finite Element method.pdf (1.58MB)

J.A. Nitsche FEM for Conformal Mappings.pdf (2.89MB)

J.A. Nitsche FEM for Conformal Mappings.pdf (2.89MB)

J.A. Nitsche On Korn s second inequality.pdf (830.82KB)

J.A. Nitsche On Korn s second inequality.pdf (830.82KB)

J.A.Nitsche Der Einfluss von Randsingularitaeten beim Ritzschen Verfahren.pdf (3.32MB)

J.A.Nitsche Der Einfluss von Randsingularitaeten beim Ritzschen Verfahren.pdf (3.32MB)

Nitsche J. A., lecture notes I, Approximation Theory in Hilbert Scales.pdf (2.31MB)

Nitsche J. A., lecture notes I, Approximation Theory in Hilbert Scales.pdf (2.31MB)

Nitsche J. A., lecture notes II, Extensions and Generalizations.pdf (1.26MB)

Nitsche J. A., lecture notes II, Extensions and Generalizations.pdf (1.26MB)

Nitsche J. A., lecture notes, Hilbert scale, extensions, approximation theory.pdf (382.6KB)

Nitsche J. A., lecture notes, Hilbert scale, extensions, approximation theory.pdf (382.6KB)