Canadian Journal of Mathematics |
常見字詞
ABCD abelian group angle artinian assume Axiom axis Blaschke sum branch curve C-matrices centre characteristic subgroup collinear cone conic conjugate contains convex bodies convex polygon Corollary deduce defined denote digraph directrices distinct points double point edge elations elements epimorphic image equation equatorial equivalent finite fixed points folgt follows four-colour problem GCBR geometry Geraden graph H. S. M. Coxeter H/CH Hadamard matrix Hence image H image point implies integer intersection involution Kn+i Lemma linear mapping Math matrix maximal subgroup meets minimal normal subgroup minimum condition multiple original points neighbourhood nodes nucleus pairs pencil permutation perpendicular planes of characteristic polarity polygon positive prime meridian projective collineation projective plane Proof proved quadrics quartic s-group Satz self-conjugate self-polar semigroup shows singular skew soluble subgroup of G subnormal subgroup Suppose surface symmetric tangent theorem triangle vertex vertices z-axis