Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-25T09:01:15.507Z Has data issue: false hasContentIssue false

Twills on a given number of harnesses

Published online by Cambridge University Press:  09 April 2009

W. D. Hoskins
Affiliation:
Department of Computer Science University of ManitobaWinnipeg, ManitobaCanadaR3T 2N2
Anne Penfold Street
Affiliation:
Department of Mathematics University of QueenslandSt. Lucia, Brisbane, Australia
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The simple twills on n harnesses can be classified according to the number of breaks that they possess. An algorithm is detailed for determining these twills and some sample listings given. A formula is derived which evaluates the total number of n-harness twills with a specified number of breaks, and hence also the total possible number of twills on n harnesses. Also the balanced twills on n harnesses are enumerated.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1982

References

[1]Burnside, W., Theory of groups of finite order (Cambridge University Press. Second edition, 1911; Dover reprint, 1955).Google Scholar
[2]Collingwood, P., The techniques of rug weaving (Faber and Faber, London, 1968).Google Scholar
[3]Fine, N. J., ‘Classes of periodic sequences’, Illinois J. Math. 2 (1958), 285302.Google Scholar
[4]Gilbert, E. N. and Riordan, J., ‘Symmetry types of periodic sequences’, Illinois J. Math. 5 (1961). 657665.Google Scholar
[5]Grünbaum, Branko and Shephard, G. C., ‘Satins and twills: an introduction to the geometry of fabrics’, Math. Mag. 53 (1980). 139161.Google Scholar
[6]Hooper, Luther, Hand loom weaving, plain and ornamental (Pitman Press, Bath. 1910: revised reprint 1960; paperback, 1979).Google Scholar
[7]Laughlin, M. E., More than four (Laughlin, Sacramento, 1976).Google Scholar
[8]Oelsner, G. H., A handbook of weaves (McMillan, 1915).Google Scholar