Canadian Journal of Mathematics |
Загальні терміни та фрази
1-width 2-separation algebra assume automorphism bicubic maps bigraphs c-nets class 93 colour columns compact open conjugate connected bicolourable graphs contains continuous linear lattice Corollary corresponding counting series cyclic defined denote derivable map domain of validity edges equation extension faces Figure finite fixed point follows formulae G-orthogonal Grassmann manifold Hence homeomorphism implies incident integer interchange isometric isomorphism Lemma main grid Math matrix maximal monotone function non-singular obtain orthogonal orthonormal basis p.r.i. ring perfect squares permutation characters permutation groups positive definite positive integer Proof prove quotients representation result Riemannian Riemannian manifolds rooted maps row sums satisfies semi-normal manifold sequentially continuous linear sides squared rectangles squared squares Steiner triple Steiner triple system subalgebra subgroup submodule subset subspace superuniversally continuous Suppose symmetric bigraphs symmetric functions tB(a triple system unique vector vertex vertices W. T. Tutte Wedderburn factors width sequence zero