Let us have geometrical figure F with discrete group of symmetry G and finite set N = {1, 2, ..., m} of „indexes”, which mean a non-geometrical feature. On fix a certain transitive group P of permutations over N. We will ...

Some of the central problems in computer science and, in particular, in programming are the correctness and the similarity problems, which contain: the question of whether a program computes a given function; the problem ...