正定

• Conditional positive forms and dilations
  条件正定型与扩张
• The new method of judgement for matrix positive definite in euclid space
  空间中矩阵正定性判别的新方法
• On dx - generalized positive definite matrices
  广义正定矩阵
• Symmetric , semi - definite and semipositive subdefinite solutions of matrix equation
  半正定解和亚半正定解
• Prof . lin huiyin in our memory : 2004 , 100th anniversary of the her birth
  纪念梁思成先生首次考察正定70周年
• Iterative solution of operator equations in ordered banach spaces with applications
  正定算子方程的逼近解
• Positive definite even unimodular lattices over real quadratic integer rings
  实二次整数环上的正定偶幺模格
• Then a is positive semidefinite , negative definite and negative semidefinite
  则a是半正定，负定，半负定的。
• A criterion for the positive definiteness of a block - matrix and its application
  分块矩阵的正定性准则及其应用
• The class number of positive even unimodular lattices over real quadratic field
  实二次域上正定偶幺模格的类数