Betti numbers and minimal free resolutions for multi-state system reliability bounds

• Eduardo Sáenz de Cabezón Irigaray ^[2] ; Henry P. Wynn ^[1]
  1. [1] London School of Economics and Political Science

     London School of Economics and Political Science

     Reino Unido

     
  2. [2] Universidad de La Rioja

     Universidad de La Rioja

     Logroño, España

     
• Localización: Journal of symbolic computation, ISSN 0747-7171, Vol. 44, Nº 9, 2009, págs. 1311-1325
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Every coherent system has a monomial ideal associated with it and the knowledge of its multigraded Betti numbers provides reliability bounds for the corresponding system, which are the tightest among a certain class of such bounds. Some alternative methods for computing the multigraded Betti numbers are used in this paper and applied in the study of reliability. We obtain special results for well known examples and show that computational commutative algebra techniques can be used beneficially in the reliability analysis of systems of different types.