singularity n. 1.奇特;特別;非凡,異常;奇特的東西;怪癖,特性。 2.〔罕用語〕獨(dú)一,單一,獨(dú)個(gè)。 3.【天文學(xué)】奇點(diǎn)〔宇宙物體收縮至無限大密度和無限小體積的空間的一個(gè)假想點(diǎn)〕;【數(shù)學(xué)】奇點(diǎn)。
According to the relation between tangent space and annihilation space of parameterization singularity manifolds, we present the new concepts of first order and second order singularity . degenerate and non-degenerate parameterization singularities are analyzed and the sufficient and necessary conditions for degenerate singularity are derived 研究了退化和非退化奇異位形的特點(diǎn),給出了判斷退化參數(shù)化奇異位形的充分和必要條件,其中對必要條件,提出了一種方便實(shí)用的morse判斷函數(shù)。