充要条件

• Necessary and sufficient condition for oscillations of parabolic equations
  抛物型时滞偏微分方程解振动的充要条件
• A necessary and sufficient condition of a family of peudocontractive maps
  伪压缩映像族的一个隐格式强收敛的充要条件
• Oscillation of solutions of nonlinear neutral parabolic differential equations
  抛物型时滞偏微分方程解振动的充要条件
• Oscillation criteria of nonlinear neutral hyperbolic partial differential equations
  抛物型时滞偏微分方程解振动的充要条件
• Necessary and sufficient condition of 2 - dimension projective transformation being involution
  二维射影变换是对合的充要条件
• A necessary and sufficient condition for correlation - immune of 3 - valued logical functions
  3值逻辑函数相关免疫的一个充要条件
• Research on the sufficient and necessary condition of hermitian operator in the limitless space
  无限维空间中厄米算符的充要条件
• Sufficient and necessary conditions of existence of limit cycle for one kind quadratic system
  一类二次系统极限环存在的充要条件
• A sufficient and necessary condition for metrization of a de morgan algebra of uniformity
  德摩根一致代数可度量化的一个充要条件
• The necessary and sufficient conditions for the hamilton graph and matrix calculation of cyles
  判定两类矩阵为正稳定矩阵的充要条件