On the billiard approach in multidimensional cosmological models spaces is presented. We start with the billiard representation for pseudo-
Euclidean Toda-like systems
Some Generalizations of the Shadow Problem in the Lobachevsky Space of sets. We determine the
limit values of the parameters for which the same configurations of balls
Harmonic polynomials in quantum Euclidean spacesHarmonic polynomials in quantum
Euclidean spaces
Harmonic polynomials on quantum euclidean spacesHarmonic polynomials on quantum
euclidean spaces
Non-Euclidean octahedral with mm2 symmetryNon-
Euclidean octahedral with mm2 symmetry
Non-Euclidean octahedra with roman{mm}2-symmetryNon-
Euclidean octahedra with roman{mm}2-symmetry
A Strong Form of Hardy Type Inequalities on Domains of the Euclidean Space functions defined on subdomains of the
Euclidean space. Namely, we obtain several new Hardy
Economic resources and their rotation. Emergent qualities of the economy as ultimate target
cycles of self-renewal of the initial reserves of all types of reproducible resources