GershgorinBounds Subroutine

public subroutine GershgorinBounds(this, min_value, max_value)

Compute a bounds on the minimum and maximum eigenvalue of a matrix. Uses the Gershgorin theorem.

Arguments

Type	Intent	Optional	Attributes		Name
type(Matrix_ps),	intent(in)			::	this	The matrix to compute the min/max of.
real(kind=NTREAL),	intent(out)			::	min_value	A lower bound on the eigenspectrum.
real(kind=NTREAL),	intent(out)			::	max_value	An uppder bound on the eigenspectrum.

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