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Existence of (2, 8) GWhD( v ) and (4, 8) GWhD( v ) with v º 0,1 (mod 8){v equiv 0,1 (mod 8)}

机译:存在(2,8)GWhD(v)和(4,8)GWhD(v)且vº0,1(mod 8){v equiv 0,1(mod 8)}

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摘要

(2, 8) Generalized Whist tournament Designs (GWhD) on v players exist only if v º 0,1 (mod 8){v equiv 0,1 (mod 8)} . We establish that these necessary conditions are sufficient for all but a relatively small number of (possibly) exceptional cases. For v º 1 (mod 8){v equiv 1 (mod 8)} there are at most 12 possible exceptions: {177, 249, 305, 377, 385, 465, 473, 489, 497, 537, 553, 897}. For v º 0 (mod 8){v equiv 0 (mod 8)} there are at most 98 possible exceptions the largest of which is v = 3696. The materials in this paper also enable us to obtain four previously unknown (4, 8)GWhD(8n+1), namely for n = 16,60,191,192 and to reduce the list of unknown (4, 8) GWhD(8n) to 124 values of v the largest of which is v = 3696.
机译:(2,8)仅当vº0,1(mod 8){v equiv 0,1(mod 8)}时,存在v个玩家的广义Whist比赛设计(GWhD)。我们确定,这些必要条件足以满足所有情况,但只有少数(可能)例外情况。对于vº1(mod 8){v equiv 1(mod 8)},最多有12种可能的例外情况:{177,249,305,377,385,465,473,489,497,537,553,897} 。对于vº0(模8){v等效0(模8)},最多有98种可能的例外,其中最大的例外是v =3696。本文中的材料还使我们能够获得四个以前未知的(4,8 )GWhD(8n + 1),即n = 16,60,191,192,并将未知(4,8)GWhD(8n)的列表减少到v的124个值,其中最大的值为v = 3696。

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