(mit L. Nöthen) Tikhonov's theorem and quasi-steady state.
Discrete Contin. Dyn. Sys. Ser B 16, 945 - 961 (2011).
(mit C. Christopher, J. Llibre, C. Pantazi) Darboux integrating factors: Inverse problems.
J. Diff. Eqs. 250, 1 - 25 (2011).
(mit B. Gotzen und V. Liebscher) On a class of deterministic population models with stochastic foundation.
Bull. Math. Biol. 73, 1559 - 1582 (2011).
(mit L. Nöthen) Quasi-steady state and nearly invariant sets.
SIAM J. Appl. Math. 70, 1341 - 1363 (2009).
(mit C. Zanders) Strong monotonicity for analytic ordinary differential equations.
Electron. J. Diff. Equ. 2009(106), 1 - 10 (2009).
(mit C. Christopher, J. Llibre, C. Pantazi) Inverse problems
for invariant algebraic curves: Explicit computations.
Proc. Royal Soc. Edinburgh 139A, 287 - 302 (2009).
(mit S. Cunha Orfao, G. Jank, K. Mottaghy, E. Zerz) Qualitative
properties and stabilizability of a model for blood thrombin
formation.
J. Math. Analysis Appl. 346, 218 - 226 (2008).
(mit G. Gaeta, F.D. Grosshans, J. Scheurle) Reduction and
reconstruction for symmetric ordinary differential equations.
J. Diff. Eqs. 244, 1810 - 1839 (2008).
(mit C. Christopher, J. Llibre, C. Pantazi) Inverse problems
for multiple invariant curves.
Proc. Royal Soc. Edinburgh 137A, 1197 - 1226 (2007).
(mit L. Nöthen) Quasi-steady state in the Michaelis-Menten
system.
Nonlinear Analysis: Real World Applications 8,
1512 - 1535 (2007).
(mit K.P. Hadeler) Reducible ordinary differential equations.
J. Nonlinear Sci. 16, 583 - 613 (2006).
(mit G. Gaeta) Embedding and splitting ordinary differential
equations in normal form.
J. Diff. Eqs. 224, 98 - 119 (2006).
(mit L. Imhof) Exclusion and persistence in deterministic and
stochastic chemostat models.
J. Diff. Eqs. 217, 26 - 53 (2005).
(mit M. Kirkilionis) On comparison systems for ordinary
differential equations.
J. Math. Analysis Appl. 299, 157 - 173 (2004).
(mit S. Mayer und J. Scheurle) Practical normal form computations
for vector fields.
Z. Angew. Math. Mech. (ZAMM) 84(7), 472 - 482 (2004).
Local integrating factors.
J. Lie Theory 13, 279-289 (2003).
(mit R. Lasser) Error estimates for linear compartmental
systems.
SIAM J. Matrix Analysis Appl. 23, 1013 - 1024 (2002).
(mit G. Gaeta) Lie algebras with finite dimensional polynomial
centralizer.
J. Math. Analysis Appl. 269, 578 - 587 (2002).
(mit S. Pumplün) On the zeros of polynomials over
quaternions.
Comm. Algebra 30(8), 4007 - 4018 (2002).
On cooperative systems with respect to arbitrary orderings.
J. Math. Analysis Appl. 263, 543 - 554 (2001).
(mit V. Liebscher) On the mean value of probability measures on
circular graphs.
Result. Math. 39, 58-90 (2001).
On convergent normal form transformations in presence of
symmetries.
J. Math. Analysis Appl. 244, 17-26 (2000).
On the Poincaré problem.
J. Diff. Eqs. 166 (1), 51-78 (2000).
Plane polynomial vector fields with prescribed invariant
curves.
Proc. Royal Soc. Edinburgh 130A, 633-649 (2000).
(mit G. Gaeta) Dimension increase and splitting for Poincare-Dulac
normal forms.
J. Nonlin. Math. Phys. 12, Suppl. 1, 327 - 342 (2005).
(mit T. Gramchev) Normal forms of maps: Formal and algebraic
aspects.
Acta Appl. Math. 87, 123 - 146 (2005).
Symmetries and convergence of normal form transformations.
In: J. Palacian, P. Yanguas (eds.): Actas de las VI Jornadas
de Mecanica Celeste.
Monografias de la Real Academia de Ciencias de Zaragoza
25 (2004), pp.251 - 268.
(mit G. Cicogna) Convergence of normal form transformations:
The role of symmetries.
Acta Appl. Math. 70, 95 - 111 (2002).
(mit J. Scheurle) On normal form computations.
In: P.K. Newton, P. Holmes, A. Weinstein (eds.): Geometry,
Dynamics and Mechanics.
Springer (2002), pp. 309 - 325.
G. Gaeta, R. Vitolo, S. Walcher (eds.): Symmetry and perturbation
theory - SPT 2007. Proceedings of the conference held in
Otranto, 2 - 9 June, 2007.
World Scientific, Singapore (2007).
S. Abenda, G. Gaeta, S. Walcher (eds.): Symmetry and perturbation
theory - SPT 2002. Proceedings of the conference held in
Cala Gonone, 19 - 26 May, 2002.
World Scientific, Singapore (2002).
G. Gaeta, T. Gramchev, S. Walcher: Compact solitary waves in
linearly elastic chains with non-smooth on-site potential.
J. Phys. A Math. Theor. 40, 4493-4509 (2007).
J. Altschuh, S. Walcher, H. Sandermann:
The lipid/protein interface as xenobiotic target site: Kinetic
analysis of tadpole narcosis.
FEBS Journal 272, 2399 - 2406 (2005).
S. Demart, F. Ceccerini-Silberstein, S. Schlicht, S. Walcher,
H. Wolff, M. Neumann, V. Erfle, R. Brack-Werner:
Analysis of the nuclear targeting activities of transport signals
in the human immunodefiviency virus Rev protein.
Experimental Cell Research 291, 484 - 501 (2003).
S. Walcher, J. Altschuh, K.-W. Schramm, S. Mayer:
Estimates in deterministic fate modelling of environmental
chemicals.
Environmental Modelling and Software 18(10),
929 - 936 (2003).
S. Walcher, J. Altschuh, H. Sandermann:
The lipid/protein interface as xenobiotic target site: Kinetic
analysis of the nicotinic actylcholine receptor.
J. Biol. Chem. 276, 42191 - 42195 (2001).
(mit B. Gotzen, V. Liebscher)
Populationsmodelle. Mathematische Modellierung an einem
Fallbeispiel.
Math. Semesterber. 55 (2), 161 - 179 (2008).
(mit D. Dossing, V. Liebscher und H. Wagner)
Evolution, Bäume und Algorithmen.
MNU 60 (2), 68 - 75 (2007).
(mit D. Dossing, H. Wagner)
Neuronen und die Poisson-Verteilung.
MNU 60 (1), 17 - 22 (2007).
(mit D. Dossing, H. Wagner)
Oligomere, rationale Funktionen und Kombinatorik.
MNU 59 (7), 396 - 402 (2006).
(mit D. Dossing, H. Wagner)
Transport- und Abbauprozesse in Biologie und Ökologie.
MNU 59 (3), 144 - 151 (2006).
S. Walcher, J. Altschuh, S. Mayer, K.-W. Schramm:
A mathematical model for the fate of a chemical in a pond
system.
In: K.-W. Schramm, G. Severin (eds.): Bioindication in
natural-like aquatic ecosystems: Endocrine disruptors in outdoor
microcosms.
GSF-Bericht 02/02, GSF-Forschungszentrum für Umwelt und
Gesundheit (2002), pp. 67 - 74.
S. Mayer, S. Walcher, J. Altschuh, K.-W. Schramm:
Fate simulation for nonylphenol in a pond sediment.
In: K.-W. Schramm, G. Severin (eds.): Bioindication in
natural-like aquatic ecosystems: Endocrine disruptors in outdoor
microcosms.
GSF-Bericht 02/02, GSF-Forschungszentrum für Umwelt und
Gesundheit (2002), pp.75 - 94.
V. Hösel, S. Walcher:
Clustering techniques: A brief survey.
GSF-Bericht 08/01, GSF-Forschungszentrum für Umwelt und
Gesundheit (2001).
V. Hösel, S. Walcher:
On the mathematical modeling of biofilms.
GSF-Bericht 10/99, GSF-Forschungszentrum für Umwelt und
Gesundheit (1999).