Примеры использования Positive definite на Английском языке и их переводы на Русский язык
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The Hilbert matrix is symmetric and positive definite.
For positive definite Q, the ellipsoid method solves the problem in polynomial time.
A positive matrix is not the same as a positive-definite matrix.
Even positive definite unimodular lattices exist only in dimensions divisible by 8.
Matrices from the Wishart distribution are symmetric and positive definite.
A lattice is positive definite if the norm of all nonzero elements is positive. .
For a minimum the second order condition is that H be a positive definite matrix.
In contrast to the positive definite case, these vectors need not be linearly independent.
The Cholesky decomposition: a block version for dense real symmetric positive definite matrices.
The lattice is positive definite, Lorentzian, and so on if its vector space is.
The Cholesky decomposition: a dot version for real sparse symmetric positive definite matrices.
Parallel solution of symmetric positive definite systems based on decomposition into overlapping blocks.
Originally, the Cholesky decomposition was used only for dense real symmetric positive definite matrices.
Input data: a symmetric positive definite matrix[math]A[/math] whose elements are denoted by[math]a_{ij}/math.
The Cholesky decomposition(or the square-root method):a basic dot version for dense real symmetric positive definite matrices.
In that case,if S in the above decomposition is positive definite, then A is said to be a Cartan matrix.
The above expression under the square root sign is always positive if the matrix[math]A[/math]is real symmetric and positive definite.
The considered approach is generalized for systems with a positive definite potential of interaction between particles.
In particular, if A is positive definite, the Schur decomposition of A, its spectral decomposition, and its singular value decomposition coincide.
The Cholesky decomposition can be used to solve linear systems[math]Ax b[/math], where[math]A[/math]is a symmetric positive definite matrix.
The conditon for a matrix to be positive definite is that its principal minors all be positive. .
The non-unitarity is not a problem in quantum field theory,since the objects of concern are not required to have a Lorentz-invariant positive definite norm.
For a minimum the condition is that the matrix S must be positive definite and this will prevail if the principal minors are all positive. .
Various versions of the Cholesky decomposition are successfully used in iterative methods to construct preconditioners for sparse symmetric positive definite matrices.
A basic dot version of the Cholesky algorithm for dense real symmetric positive definite matrices is extensively analyzed in The Cholesky decomposition the square root method.
Using the method introduced by Hilbert-Birkgoff in the projective contraction fixed point theorem,we determine conditions under which Lyapunov differential matrix equation has a one-dimensional invariant manifold in the cone of positive definite of quadratic form.
A dot version of the Cholesky decomposition for real symmetric positive definite matrices can be generalized to the case of Hermitian positive definite matrices.
Mathematicians were helpless when surfaces were non-smooth(for example, with conical points, ribbed points, etc.) andwhen the intrinsic geometry was given not by a smooth positive definite quadratic form, but simply by a metric space of a fairly general form.
Quadratic programming is particularly simple when Q is positive definite and there are only equality constraints; specifically, the solution process is linear.
Usually, when the value of[math]k[/math] increases, the accuracy of the IC([math]k[/math]) incomplete decomposition also increases; however,this is not always the case even for symmetric positive definite matrices, although their complete decompositions exist and are unique.