Wilbrink and Brouwer [18] proved that certain semi-partial geometries with some weak restrictions on parameters satisfy the dual of Pasch's axiom. Inspired by their work, a class of incidence structures associated with distance-regular graphs with classical parameters is studied in this paper. As a
A unified approach to the first derivatives of graph polynomials
β Scribed by Xueliang Li; Ivan Gutman
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 246 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0166-218X
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A Unified Matrix Polynomial Approach (UMPA) is discussed in this paper as a possible method of condensing multiple sets of Perturbed Boundary Condition (PBC) test data into a single modal model of the unmodified system. The PBC testing provides a much larger database that contains more information a
Multivalent relations, inferred as relationships with an added dimension of discernment, are realized as weighted graphs with multivalued edges. A unified treatment of the threshold problem is discussed and a reliability measure is produced to judge various partitions. 'R+ represents the non-negati
## Relations on a finite set V are viewed as weighted graphs. Using the language of graph theory two methods of partitioning V are examined. In one method, partitionings of V are obtained by selecting threshold values and applying them to a maximal weighted spanning forest. In another method a para