A Jacobson Radical Decomposition of the Fano-Snowflake Configuration

作者：Saniga Metod^*; Pracna Petr

来源：Symmetry Integrability and Geometry-Methods and Applications, 2008, 4: 072.

• non-unimodular geometry over rings
• smallest ring of ternions
• Fano plane

The Fano-Snowflake, a specific configuration associated with the smallest ring of ternions R(lozenge) (arXiv:0803.4436 and arXiv:0806.3153), admits an interesting partitioning with respect to the Jacobson radical of R(lozenge). The totality of 21 free cyclic submodules generated by non-unimodular vectors of the free left R(lozenge)-module R(lozenge)(3) is shown to split into three disjoint sets of cardinalities 9, 9 and 3 according as the number of Jacobson radical entries in the generating vector is 2, 1 or 0, respectively. The corresponding "ternion-induced" factorization of the lines of the Fano plane sitting in the middle of the Fano-Snowflake is found to differ fundamentally from the natural one, i.e., from that with respect to the Jacobson radical of the Galois field of two elements.

• 出版日期2008