Differences between fundamental solutions of general higher order elliptic operators and of products of second order operators
In: Mathematische Annalen - Berlin: Springer, 1869 . - 2020

Positivity of solutions to the Cauchy problem for linear and semilinear biharmonic heat equations
In: Advances in nonlinear analysis - Berlin: de Gruyter, 2012, Bd. 10.2020, 1, S. 353-370

Boundary value problems for the Helfrich funtional for surfaces of revolution - existence and asymptotic behavior
In: Magdeburg: Universität, Fakultät für Mathematik, 2020, 29 Seiten, Diagramme - (Preprint; Fakultät für Mathematik, Otto-von-Guericke-Universität Magdeburg; 2020, Nr. 04) ; [Literaturverzeichnis: Seite 27-29]

Boundary value problems for the Willmore functional
In: Magdeburg: Universität, Fakultät für Mathematik, 2018, 17 Seiten, Diagramme - (Preprint; Fakultät für Mathematik, Otto-von-Guericke-Universität Magdeburg; 2018,Nr.04) ; [Literaturverzeichnis: Seite 15-17]

Existence for Willmore surfaces of revolution satisfying non-symmetric Dirichlet boundary conditions
In: Advances in calculus of variations - Berlin: de Gruyter, 2017

Minimising a relaxed Willmore functional for graphs subject to boundary conditions
In: Interfaces and free boundaries - Zürich: European Mathematical Soc. Publ. House, Bd. 19.2017, 1, S. 109-140

Boggios formula for fractional polyharmonic Dirichlet problems
In: Annali di matematica pura ed applicata. - Berlin : Springer, insges. 18 S., 2016

Jahresbericht der Deutschen Mathematikervereinigung
In: 2016

Dominance of positivity of the Green's function associated to a perturbed polyharmonic dirichlet boundary value problem by pointwise estimates
In: Magdeburg Univ., Fak. für Mathematik, Diss., 2015, 95 S., graph. Darst.

Jahresbericht der Deutschen Mathematiker-Vereinigung
In: 2015

A clamped plate with a uniform weight may change sign
In: Discrete and continuous dynamical systems. - Springfield, Mo : American Institute of Mathematical SciencesDiscrete and continuous dynamical systems / S, Bd. 7.2014, 7, S. 761-766

In any dimension a clamped plate with a uniform weight may change sign
In: Nonlinear analysis. - Amsterdam [u.a.] : Elsevier, Pergamon PressNonlinear analysis / Theory, methods and applications, Bd. 97.2014, S. 119-124

Uniform estimates and convexity in capillary surfaces
In: Nonlinear analysis. - Amsterdam [u.a.] : Elsevier, Pergamon PressNonlinear analysis / Theory, methods and applications, Bd. 97.2014, S. 83-93

Uniform estimates for polyharmonic Green functions in domains with small holes
In: Recent trends in nonlinear partial differential equations II. - Providence, Rhode Island : American Mathematical Society, S. 263-272, 2013

The asymptotic shape of a boundary layer of symmetric willmore surfaces of revolution
In: Inequalities and applications 2010. - Basel [u.a.] : Birkhäuser [u.a.], S. 19-29, 2012 - (International series of numerical mathematics; 161)

Optimal estimates from below for biharmonic Green functions
In: Proceedings of the American Mathematical Society. - Providence, RI : Soc, Bd. 139.2011, 6, S. 2151-2161

Symmetric Willmore surfaces of revolution satisfying arbitrary Dirichlet boundary data
In: Advances in calculus of variations. - Berlin : de Gruyter, Bd. 4.2011, 1, S. 1-81

Optimal Sobolev and Hardy Rellich constants under navier boundary conditions
In: Annali di matematica pura ed applicata . - Heidelberg : Springer, Bd. 189.2010, 3, S. 475-486

Positivity and almost positivity of biharmonic Green's functions under Dirichlet boundary conditions
In: Archive for rational mechanics and analysis . - Berlin : Springer, Bd. 195.2010, 3, S. 865-898

Polyharmonic boundary value problems - positivity preserving and nonlinear higher order elliptic equations in bounded domains
In: Heidelberg [u.a.]: Springer, 2010, XVIII, 423 S., graph. Darst., 235 mm x 155 mm - (Lecture notes in mathematics; 1991) ; [Literaturverz. S. 397 - 413]

A Navier boundary value problem for Willmore surfaces of revolution
In: Analysis . - München : Oldenbourg, Bd. 29.2009, 3, S. 229-258

Boundedness of the negative part of biharmonic Greens functions under dirichlet boundary conditions in general domains
In: Comptes rendus mathematique . - Paris : Elsevier, Bd. 347.2009, 3/4, S. 163-166

Nonlinear questions in clamped plate models
In: Milan journal of mathematics . - Basel; Berlin [u.a.] : Birkhäuser, Bd. 77.2009, 1, S. 171-204

Some new proberties of biharmonic heat kernels
In: Nonlinear analysis . - Oxford : Pergamon, Elsevier Science, ISSN 0362-546x, Bd. 70.2009, 8, S. 2965-2973

Stability and symmetry in the Navier problem for the one-dimensional Willmore equation
In: Society for Industrial and Applied Mathematics : SIAM journal on mathematical analysis . - Philadelphia, Pa. : SIAM, Bd. 40.2009, 5, S. 2055-1076

Classical solutions to the dirichlet problem for Willmore surfaces of revolution
In: Advances in calculus of variations. - Berlin : de Gruyter, Bd. 1.2008, 4, S. 379-397

Decay and local eventual positivity for biharmonic parabolic equations
In: Discrete and continuous dynamical systems / S. - Springfield, Mo, Bd. 1.2008, 4, S. 1129-1157

Eventual local positivity for a biharmonic heat equation in R^n
In: Discrete and continuous dynamical systems . - Springfield, Mo., Bd. 1.2008, 1, S. 83-87

Supercritical biharmonic equations with power-type nonlinearity
In: Annali di matematica pura ed applicata . - Heidelberg : Springer, Bd. 188.2009, 1, S. 171-185

The Paneitz equation in hyperbolic space
In: Institut Henri Poincaré <Paris> : Annales de l\'Institut Henri Poincaré . - Amsterdam : Elsevier, Bd. 25.2008, 5, S. 847-864

The second bifurcation branch for radial solutions of the Brezis-Nirenberg problem in dimension four
In: Nonlinear differential equations and applications . - Basel [u.a.] : Birkhäuser, Bd. 15.2008, 1/2, S. 69-90

Boundary value problems for the one-dimensional Willmore equation
In: Calculus of variations and partial differential equations - Berlin: Springer, Bd. 30.2007, 3, S. 293-314

Global solutions for superlinear parabolic equations involving the biharmonic operator for initial data with optimal slow decay
In: Calculus of variations and partial differential equations - Berlin: Springer, Bd. 30.2007, 3, S. 389-415

Local regularity of weak solutions of semilinear parabolic systems with critical growth
In: Journal of evolution equations: JEE - Basel [u.a.]: Birkhäuser, Bd. 7.2007, 1, S. 177-196

Regions of positivity for polyharmonic green functions in arbitrary domains
In: Proceedings of the American Mathematical Society - Providence, RI: Soc, Bd. 135.2007, 11, S. 3537-3546

The Dirichlet problem for supercritical biharmonic equations with power-type nonlinearity
In: Journal of differential equations - Orlando, Fla: Elsevier, Bd. 234.2007, 2, S. 582-606

Entire solutions for a semilinear fourth order elliptic problem with exponential nonlinearity
In: Journal of differential equations . - Orlando, Fla. : Elsevier, Bd. 230.2006, 2, S. 743-770

Radial entire solutions for supercritical biharmonic equations
In: Mathematische Annalen . - Berlin : Springer, Bd. 334.2006, 4, S. 905-936

A semilinear fourth order elliptic problem with exponential nonlinearity.
In: SIAM Journal on mathematical analysis [Philadelphia] 36(2005), Nr. 4, S. 1226 - 1258

On the existence of hermitian-harmonic maps from complete hermitian to complete Riemannian manifolds.
In: Mathematische Zeitschrift [Berlin [u.a.]] 249(2005), S. 297 - 327

Hardy inequalities with optimal constants and remainder terms.
In: Transactions of the American Mathematical Society [Providence, RI] 356(2004), Nr. 6, S. 2149 - 2168

On a conditioned brownian motion and a maximum principle on the disk.
In: Journal d\'analyse mathématique [Jerusalem] 93(2004), S. 309 - 329

Existence and nonexistence results for critical growth biharmonic elliptic equations.
In: Calculus of variations [Berlin] 18(2003), S. 117 - 143

Optimal conditions for anti-maximum principles.
In: Annali della scuola normale superiore di pisa, classe di scienze = 4. ser. [Firenze] 30(2001 [ersch. 2002]), Nr. 3/4, S. 499 - 513

Positivity, change of sign and buckling eigenvalues in a one-dimensional fourth order model problem.
In: Advances in differential equations [Athens, Ohio] 7(2002), Nr. 2, S. 177 - 196

Sharp estimates for iterated Green functions.
In: Proceedings of the Royal Society of Edinburgh, section A = Mathematics [Edinburgh] 132A(2002), S. 91 - 120

Critical dimensions and higher order Sobolev inequalities with remainder terms.
In: Nonlinear differential equations and applications : NoDEA [Basel] 8(2001), S. 35 - 44

Nonexistence of local minima of supersolutions for the circular clamped plate.
In: Pacific journal of mathematics [Berkeley] 198(2001), Nr. 2, S. 437 - 442