Andreas Kleefeld

48 papers A 1C 7Journal 32Unranked 6

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	A fourth-order exponential time differencing scheme with real and distinct poles rational approximation for solving non-linear reaction-diffusion systems. J. Comput. Appl. Math. Wisdom Kwame Attipoe, Andreas Kleefeld, E. O. Asante-Asamani
2025	J	`jnl`	A fourth-order exponential time differencing scheme with dimensional splitting for non-linear reaction-diffusion systems. J. Comput. Appl. Math. E. O. Asante-Asamani, Andreas Kleefeld, Bruce A. Wade
2025	J	`jnl`	A fourth-order exponential time differencing scheme with real and distinct poles rational approximation for solving non-linear reaction-diffusion systems. CoRR Wisdom Kwame Attipoe, Andreas Kleefeld, Emmanuel Asante-Asamani
2025	J	`jnl`	Bifurcations in Interior Transmission Eigenvalues: Theory and Computation. CoRR Davide Pradovera, Alessandro Borghi, Lukas Pieronek, Andreas Kleefeld
2025	J	`jnl`	Matrix-Valued LogSumExp Approximation for Colour Morphology. J. Math. Imaging Vis. Marvin Kahra, Michael Breuß, Andreas Kleefeld, Martin Welk
2025	—	`conf`	Morphological PDEs with Rotationally Invariant Space-Fractional Derivatives. DGMM Martin Welk, Andreas Kleefeld, Michael Breuß, Bernhard Burgeth
2025	J	`jnl`	Sampling Methods for Recovering Buried Corroded Boundaries from Partial Electrostatic Cauchy Data. SIAM J. Appl. Math. Isaac Harris, Andreas Kleefeld, Heejin Lee
2024	J	`jnl`	A fourth-order exponential time differencing scheme with dimensional splitting for non-linear reaction-diffusion systems. CoRR E. O. Asante-Asamani, Andreas Kleefeld, Bruce A. Wade
2024	—	`conf`	An Approach to Colour Morphological Supremum Formation Using the LogSumExp Approximation. DGMM Marvin Kahra, Michael Breuß, Andreas Kleefeld, Martin Welk
2024	J	`jnl`	Detecting and approximating decision boundaries in low-dimensional spaces. Numer. Algorithms Matthias Grajewski, Andreas Kleefeld
2024	J	`jnl`	Matrix-Valued LogSumExp Approximation for Colour Morphology. CoRR Marvin Kahra, Michael Breuß, Andreas Kleefeld, Martin Welk
2023	J	`jnl`	A spectral Galerkin exponential Euler time-stepping scheme for parabolic SPDEs on two-dimensional domains with a C2-boundary. CoRR Julian Clausnitzer, Andreas Kleefeld
2023	J	`jnl`	An Approach to Colour Morphological Supremum Formation using the LogSumExp Approximation. CoRR Marvin Kahra, Michael Breuß, Andreas Kleefeld, Martin Welk
2023	J	`jnl`	Comparing intrusive and non-intrusive polynomial chaos for a class of exponential time differencing schemes. CoRR Julian Clausnitzer, Andreas Kleefeld
2023	J	`jnl`	Detecting and approximating decision boundaries in low dimensional spaces. CoRR Matthias Grajewski, Andreas Kleefeld
2022	J	`jnl`	On trajectories of complex-valued interior transmission eigenvalues. CoRR Lukas Pieronek, Andreas Kleefeld
2022	—	`conf`	Towards Topological Analysis of Non-symmetric Tensor Fields via Complexification. DGMM Bernhard Burgeth, Andreas Kleefeld, Eugene Zhang, Yue Zhang
2021	J	`jnl`	The hot spots conjecture can be false: Some numerical examples. CoRR Andreas Kleefeld
2021	J	`jnl`	The hot spots conjecture can be false: some numerical examples. Adv. Comput. Math. Andreas Kleefeld
2020	J	`jnl`	A second-order exponential time differencing scheme for non-linear reaction-diffusion systems with dimensional splitting. CoRR E. O. Asante-Asamani, Andreas Kleefeld, Bruce A. Wade
2020	J	`jnl`	A second-order exponential time differencing scheme for non-linear reaction-diffusion systems with dimensional splitting. J. Comput. Phys. E. O. Asante-Asamani, Andreas Kleefeld, Bruce A. Wade
2020	J	`jnl`	Editorial - Special Issue: ISMM 2019. Math. Morphol. Theory Appl. Bernhard Burgeth, Andreas Kleefeld, Benoît Naegel, Benjamin Perret
2020	J	`jnl`	Solving nonlinear parabolic PDEs in several dimensions: Parallelized ESERK codes. J. Comput. Phys. J. Martín-Vaquero, Andreas Kleefeld
2019	C	`conf`	A Unified Approach to the Processing of Hyperspectral Images. ISMM Bernhard Burgeth, Stephan Didas, Andreas Kleefeld
2019	J	`jnl`	ESERK5: A fifth-order extrapolated stabilized explicit Runge-Kutta method. J. Comput. Appl. Math. J. Martín-Vaquero, Andreas Kleefeld
2019	J	`jnl`	Elastic interior transmission eigenvalues and their computation via the method of fundamental solutions. CoRR Andreas Kleefeld, Lukas Pieronek
2019	C	`ed.`	Mathematical Morphology and Its Applications to Signal and Image Processing - 14th International Symposium, ISMM 2019, Saarbrücken, Germany, July 8-10, 2019, Proceedings ISMM Bernhard Burgeth, Andreas Kleefeld, Benoît Naegel, Nicolas Passat, Benjamin Perret
2018	J	`jnl`	Anomalous diffusion, dilation, and erosion in image processing. Int. J. Comput. Math. Andreas Kleefeld, Sophia Vorderwülbecke, Bernhard Burgeth
2017	C	`conf`	A Unified Approach to PDE-Driven Morphology for Fields of Orthogonal and Generalized Doubly-Stochastic Matrices. ISMM Bernhard Burgeth, Andreas Kleefeld
2017	—	`conf`	Analytic Existence and Uniqueness Results for PDE-Based Image Reconstruction with the Laplacian. SSVM Laurent Hoeltgen, Isaac Harris, Michael Breuß, Andreas Kleefeld
2017	C	`conf`	Matrix-Valued Levelings for Colour Images. ISMM Michael Breuß, Laurent Hoeltgen, Andreas Kleefeld
2016	J	`jnl`	Quantile Filtering of Colour Images via Symmetric Matrices. Math. Morphol. Theory Appl. Martin Welk, Andreas Kleefeld, Michael Breuß
2015	—	`conf`	Adaptive Filters for Color Images: Median Filtering and Its Extensions. CCIW Andreas Kleefeld, Michael Breuß, Martin Welk, Bernhard Burgeth
2015	C	`conf`	Elementary Morphology for SO(2)- and SO(3)-Orientation Fields. ISMM Andreas Kleefeld, Anke Meyer-Baese, Bernhard Burgeth
2015	C	`conf`	Non-adaptive and Amoeba Quantile Filters for Colour Images. ISMM Martin Welk, Andreas Kleefeld, Michael Breuß
2015	—	`conf`	PDE-Based Color Morphology Using Matrix Fields. SSVM Ali Sharifi Boroujerdi, Michael Breuß, Bernhard Burgeth, Andreas Kleefeld
2015	—	`ch.`	Processing Multispectral Images via Mathematical Morphology. Visualization and Processing of Higher Order Descriptors for Multi-Valued Data Andreas Kleefeld, Bernhard Burgeth
2014	J	`jnl`	An approach to color-morphology based on Einstein addition and Loewner order. Pattern Recognit. Lett. Bernhard Burgeth, Andreas Kleefeld
2014	—	`ch.`	Order Based Morphology for Color Images via Matrix Fields. Visualization and Processing of Tensors and Higher Order Descriptors for Multi-Valued Data Bernhard Burgeth, Andreas Kleefeld
2013	J	`jnl`	A Global Galerkin Method for Solving the Exterior Neumann Problem for the Helmholtz Equation Using Panich's Integral Equation Approach. SIAM J. Sci. Comput. Andreas Kleefeld, Tzu-Chu Lin
2013	A	`conf`	Generalised Perspective Shape from Shading with Oren-Nayar Reflectance. BMVC Yong Chul Ju, Silvia Tozza, Michael Breuß, Andrés Bruhn, Andreas Kleefeld
2013	C	`conf`	Morphology for Color Images via Loewner Order for Matrix Fields. ISMM Bernhard Burgeth, Andreas Kleefeld
2012	J	`jnl`	A modified boundary integral equation for solving the exterior Robin problem for the Helmholtz equation in three dimensions. Appl. Math. Comput. Andreas Kleefeld
2012	J	`jnl`	The Transmission Problem for the Helmholtz Equation in R³. Comput. Methods Appl. Math. Andreas Kleefeld
2012	J	`jnl`	The exterior problem for the Helmholtz equation with mixed boundary conditions in three dimensions. Int. J. Comput. Math. Andreas Kleefeld
2011	J	`jnl`	Numerical results for linear Fredholm integral equations of the first kind over surfaces in three dimensions. Int. J. Comput. Math. Andreas Kleefeld
2011	J	`jnl`	The Levenberg-Marquardt method applied to a parameter estimation problem arising from electrical resistivity tomography. Appl. Math. Comput. Andreas Kleefeld, M. Reißel
2011	J	`jnl`	The nonlinear Landweber method applied to an inverse scattering problem for sound-soft obstacles in 3D. Comput. Phys. Commun. Andreas Kleefeld, Tzu-Chu Lin