On the Number of Faces of Simplicial Complexes and the Purity of Frobenius.
On the number of rim hook tableaux
On the q-log-Concavity of Gaussian Binomial Coefficients.
On unimodality problems in Pascal's triangle.
Positivity of three-term recurrence sequences.
Ratio monotonicity of polynomials derived from nondecreasing sequences.
Rational identities and inequalities.
Repeated Angles in E4 .
Shape-Wilf-ordering on permutations of length 3.
Some inequalities in functional analysis, combinatorics, and probability theory.
The extension of a cyclic inequality to the symmetric form.
Two combinatorial problems in group theory
Über das Maximum bei Stirlingschen Zahlen zweiter Art.
Über eine neue asymptotische Abschätzung bei Stirlingschen Zahlen 2. Art.
Unimodality problems of multinomial coefficients and symmetric functions.
Обобщенная многомерная параметрическая задача Штейнера на графах