title: Positive definiteness
text: # Positive definiteness
  
  In mathematics, positive definiteness is a property of any object to which a bilinear form or a sesquilinear form may be naturally associated, which is positive-definite. See, in particular:
  
  * Positive-definite bilinear form
  * Positive-definite function
  * Positive-definite function on a group
  * Positive-definite functional
  * Positive-definite kernel
  * Positive-definite matrix
  * Positive-definite quadratic form
  