Mouvement du pendule
Andersson's inequality and best possible inequalities.
A generalization of an IMO problem.
Periodic Solutions by Exponential Convergence (Short Communication)
Discrete Inequalities of Generalized Wirtinger Type (Short Communication)
Discrete Inequalities of Generalized Wirtinger Type.
Metrisches Feld und skalares Materiefeld.
Pseudo-normal and almost periodic functions on semigroups
Bounds on the deviation of a function from its averages
Boundary value problems in time for wave equations on .
A Generalized Sturm Comparison Theorem and Oscillation Coefficients.
Potenzbeschränktheit und Wertebereich einer Matrix.
Versuch der Auflösung der Aufgabe Nr. 12. im 6ten Bande S. 214 dieses Journals: Aus den drei, die Winkel eines geradlinigen Dreiecks halbirenden Scheitellinien den Inhalt desselben zu finden.
Matroids over a ring
We introduce the notion of a matroid over a commutative ring , assigning to every subset of the ground set an -module according to some axioms. When is a field, we recover matroids. When , and when is a DVR, we get (structures which contain all the data of) quasi-arithmetic matroids, and valuated matroids, i.e. tropical linear spaces, respectively. More generally, whenever is a Dedekind domain, we extend all the usual properties and operations holding for matroids (e.g., duality), and...
Linear optimal control system with incomplete information about state of system
Jensen inequalities for functions with higher monotonicities.
Solution Manifolds and Submanifolds of Parametrized Equations and Their Discretization Errors.
Every graph is an induced isopart of a circulant
The hull number of an oriented graph.
Some Opial, Lyapunov, and de la Valée Poussin inequalities with nonhomogeneous boundary conditions.
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