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Эта публикация цитируется в 10 научных статьях (всего в 10 статьях)
Twin “Fano-Snowflakes” over the Smallest Ring of Ternions
Metod Sanigaa, Hans Havlicekb, Michel Planatc, Petr Pracnad a Astronomical Institute, Slovak Academy of Sciences, SK-05960 Tatranská Lomnica, Slovak Republic
b Institut für Diskrete Mathematik und Geometrie, Technische Universität Wien, Wiedner Hauptstraße 8-10, A-1040 Vienna, Austria
c Institut FEMTO — ST, CNRS, Département LPMO, 32 Avenue de l'Observatoire, F-25044 Besançon Cedex, France
d J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejskova 3, CZ-182 23 Prague 8, Czech Republic
Аннотация:
Given a finite associative ring with unity, $R$, any free (left) cyclic submodule (FCS) generated by a unimodular $(n+1)$-tuple of elements of $R$ represents a point of the $n$-dimensional projective space over $R$. Suppose that $R$ also features FCSs generated by $(n+1)$-tuples that are not
unimodular: what kind of geometry can be ascribed to such FCSs? Here, we (partially) answer this question for $n=2$ when $R$ is the (unique) non-commutative ring of order eight. The corresponding geometry is dubbed
a “Fano-Snowflake” due to its diagrammatic appearance and the fact that it contains the Fano plane in its center. There exist, in fact, two such configurations – each being tied to either of the two maximal ideals of the
ring – which have the Fano plane in common and can, therefore, be viewed as twins. Potential relevance of these noteworthy configurations to quantum information theory and stringy black holes is also outlined.
Ключевые слова:
geometry over rings; non-commutative ring of order eight; Fano plane.
Поступила: 2 мая 2008 г.; в окончательном варианте 30 мая 2008 г.; опубликована 4 июня 2008 г.
Образец цитирования:
Metod Saniga, Hans Havlicek, Michel Planat, Petr Pracna, “Twin “Fano-Snowflakes” over the Smallest Ring of Ternions”, SIGMA, 4 (2008), 050, 7 pp.
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/sigma303 https://www.mathnet.ru/rus/sigma/v4/p50
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