Hereditary properties of graphs: Asymptotic enumeration, global structure, and colouring.
Inequalities for inscribed simplex and applications.
Maximale (m, n)- Punktkonfigurationen.
Minimaler Umkugelradius bei vierdimensionalen Simplexen mit Einschränkungen für ihre Kanten
On a certain triangle transformation and some of its applications.
On a geometric inequality by J. Sándor.
On an upper bound for the deviations from the mean value.
On the Erdös-Debrunner inequality.
Optimierung konstant belegter Ovale und ein Hyperbel-Schnittsatz
Parallelograms inscribed in a curve having a circle as π/2-isoptic
Jean-Marc Richard observed in [7] that maximal perimeter of a parallelogram inscribed in a given ellipse can be realized by a parallelogram with one vertex at any prescribed point of ellipse. Alain Connes and Don Zagier gave in [4] probably the most elementary proof of this property of ellipse. Another proof can be found in [1]. In this note we prove that closed, convex curves having circles as π/2-isoptics have the similar property.
Proof of Atiyah's conjecture for two special types of configurations.
Sets of points determining only acute angles and some related colouring problems.
Sharpening on Mircea's inequality.
Sliding subspace design based on linear matrix inequalities
In this work, an alternative for sliding surface design based on linear and bilinear matrix inequalities is proposed. The methodology applies for reduced and integral sliding mode control, both continuous- and discrete-time; it takes advantage of the Finsler's lemma to provide a greater degree of freedom than existing approaches for sliding subspace design. The sliding surfaces thus constructed are systematically found via convex optimization techniques, which are efficiently implemented in commercially...
Some cyclical inequalities for the triangle.
Some inequalities between two polygons inscribed one in the other.
Some inequalities for the triangle.
Some inequalities for the triangle.
Some Inequalities Related To Euler’s Theorem
Some inequalities related to Euler's theorem R...2r.