Algebraic surfaces with an infinite set of planes of oblique symmetry. II

Suppose that G is an infinite group generated by obliquereflections with respect to hyperplanes in the real spaceE ^m and that theµ _j-planes II^µj = II^dj II^j (j = G(u) -orbits of directions of symmetryu (hyperplanes of symmetry conjugate to vectors II^dj pass through _j-planesII ^j). A complete solution of the problem of the mutual position of three II^j is given. Systems of generatrices of the rings of invariants of a series of groups G are found.Translated from Ukrainskii Geometricheskii Sbornik, No. 34, pp. 42–51, 1991.