Open AccessOn system of balls with equal radii generating shadow at a point
Author(s) -
Tatiana M. Osipchuk
Publication year - 2018
Publication title -
bulletin de la société des sciences et des lettres de łódź
Language(s) - English
Resource type - Journals
ISSN - 0459-6854
DOI - 10.26485/0459-6854/2018/68.2/8
Subject(s) - shadow (psychology) , disjoint sets , ball (mathematics) , point (geometry) , euclidean space , mathematics , combinatorics , line (geometry) , euclidean geometry , mathematical analysis , geometry , psychology , psychotherapist