▁ 3 , ▁there ▁are ▁smooth ▁complex ▁F ano ▁vari eties ▁which ▁are ▁not ▁rational , ▁for ▁example ▁cub ic ▁ 3 - f olds ▁in ▁P 4 ▁( by ▁C lem ens ▁- ▁Griff ith s ) ▁and ▁quart ic ▁ 3 - f olds ▁in ▁P 4 ▁( by ▁I sk ov sk ikh ▁- ▁Man in ). ▁ ▁class ified ▁the ▁smooth ▁F ano ▁ 3 - f olds ▁with ▁second ▁B etti ▁number ▁ 1 ▁into ▁ 1 7 ▁classes , ▁and ▁▁ ▁class ified ▁the ▁smooth ▁ones ▁with ▁second ▁B etti ▁number ▁at ▁least ▁ 2 , ▁finding ▁ 8 8 ▁de formation ▁classes . ▁A ▁detailed ▁summary ▁of ▁the ▁classification ▁of ▁smooth ▁F ano ▁ 3 - f olds ▁is ▁given ▁in ▁. ▁ ▁See ▁also ▁ ▁Period ic ▁table ▁of ▁shapes ▁a ▁project ▁to ▁class ify ▁all ▁F ano ▁vari eties ▁in ▁three , ▁four ▁and ▁five ▁dimensions . ▁ ▁External ▁links ▁▁▁ ▁F an ography ▁- ▁A ▁tool ▁to ▁vis ually ▁study ▁the ▁classification ▁of ▁three ▁dimensional ▁F ano ▁vari eties . ▁ ▁Notes ▁ ▁References ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁ ▁▁▁▁ ▁Category : Al gebra ic ▁geometry ▁Category : 3 - f olds <0x0A> </s> ▁Lewis ▁A . ▁R oney ▁( J uly ▁ 7 , ▁ 1 9 2 2 ▁– ▁September ▁ 2 8 , ▁ 2 0 0 4 ) ▁was ▁an ▁American ▁college ▁basketball ▁player . ▁ ▁He ▁was ▁a ▁starting ▁guard ▁for ▁the ▁Wy oming ▁Cow bo ys ' ▁ 1 9 4