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・ Line break (poetry)
・ Line breaking rules in East Asian languages
・ Line bundle
・ Line Bus
・ Line by Line
・ Line C
・ Line C (Buenos Aires Underground)
・ Line C (Prague Metro)
・ Line C (Rome Metro)
・ Line call
・ Line card
・ Line chart
・ Line clipping
・ Line code
・ Line Communications
Line complex
・ Line coordinates
・ Line Corporation
・ Line D (Buenos Aires Underground)
・ Line D (Prague Metro)
・ Line D (Rome Metro)
・ Line dance
・ Line Daugaard
・ Line Defense
・ Line Delimited JSON
・ Line Describing a Cone
・ Line discipline
・ Line doubler
・ Line drawing
・ Line drawing algorithm


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Line complex : ウィキペディア英語版
Line complex
In algebraic geometry, a line complex is a 3-fold given by the intersection of the Grassmannian ''G''(2, 4) (embedded in projective space ''P''5 by Plücker coordinates) with a hypersurface. It is called a line complex because points of ''G''(2, 4) correspond to lines in ''P''3, so a line complex can be thought of as a 3-dimensional family of lines in ''P''3. The linear line complex and quadric line complex are the cases when the hypersurface has degree 1 or 2; they are both rational varieties.
==References==

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抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Line complex」の詳細全文を読む



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