【摘要】 讨论一类特殊的射流(spray)Gδ:=yixi-2δ(x)Fyiyi可由正定Finsler度量诱导的充分必要条件及此度量的特殊性质.若δ(x)为常数,则当且仅当δ=0,12,1时,Gδ可由正定Finsler度量F诱导,并对这些度量F做了不同程度的刻画.更多还原

【Abstract】 The sufficient and necessary conditions are discussed when a special spray Gδ:=yixi-2δ(x)Fyiyi can be induced by Finsler metric. And the special property of the metric is also discussed. It is proved that Gδ can be induced by F if and only if δ=0,12,1, and a description of these metrics in some degree is gotten.更多还原