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SemidefiniteProgramming :: roundPSDmatrix

roundPSDmatrix -- rational rounding of a PSD matrix

Synopsis

Description

Let Sn be the space of symmetric n×n matrices, and let L ⊂Sn be a rational affine subspace. By vectorization we may describe this subspace in the form A q = b for some matrix A with n(n+1)/2 columns. Given a real matrix Q∈Sn, this method finds a nearby rational matrix Qp on L.


      

See also