Vectors, Cyclic Submodules and Projective Spaces Linked with Ternions

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dc.creatorHavlicek, Hans
dc.creatorSaniga, Metod
dc.date2008-06-19
dc.date.accessioned2026-07-07T12:44:38Z
dc.date.available2026-07-07T12:44:38Z
dc.descriptionGiven a ring of ternions $R$, i. e., a ring isomorphic to that of upper triangular $2\times 2$ matrices with entries from an arbitrary commutative field $F$, a complete classification is performed of the vectors from the free left $R$-module $R^{n+1}$, $n \geq 1$, and of the cyclic submodules generated by these vectors. The vectors fall into $5 + |F|$ and the submodules into 6 distinct orbits under the action of the general linear group $\GL_{n+1}(R)$. Particular attention is paid to {\it free} cyclic submodules generated by \emph{non}-unimodular vectors, as these are linked with the lines of $\PG(n,F)$, the $n$-dimensional projective space over $F$. In the finite case, $F$ = $\GF(q)$, explicit formulas are derived for both the total number of non-unimodular free cyclic submodules and the number of such submodules passing through a given vector. These formulas yield a combinatorial approach to the lines and points of $\PG(n,q)$, $n\geq 2$, in terms of vectors and non-unimodular free cyclic submodules of $R^{n+1}$.
dc.description10 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0806.3153
dc.identifierhttp://arxiv.org/abs/0806.3153
dc.identifierJournal of Geometry 92 (2009) 79-90
dc.identifierdoi:10.1007/s00022-008-2090-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220838
dc.subjectMathematical Physics
dc.subjectAlgebraic Geometry
dc.subjectRings and Algebras
dc.subjectQuantum Physics
dc.titleVectors, Cyclic Submodules and Projective Spaces Linked with Ternions
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