By Fuzhen Zhang

This e-book describes the Schur supplement as a wealthy and easy software in mathematical examine and purposes and discusses many major effects that illustrate its strength and fertility. assurance contains old improvement, uncomplicated houses, eigenvalue and singular worth inequalities, matrix inequalities in either finite and countless dimensional settings, closure homes, and purposes in information, likelihood, and numerical research.

Show description

Read Online or Download The Schur Complement and Its Applications (Numerical Methods and Algorithms) PDF

Similar number systems books

Algorithmic Lie Theory for Solving Ordinary Differential Equations

Although Sophus Lie's conception used to be almost the one systematic approach for fixing nonlinear traditional differential equations (ODEs), it used to be hardly ever used for useful difficulties end result of the titanic volume of calculations concerned. yet with the arrival of machine algebra courses, it grew to become attainable to use Lie conception to concrete difficulties.

The Numerical Solution of Ordinary and Partial Differential Equations, Second Edition

Discover ways to write courses to unravel traditional and partial differential equations the second one version of this well known textual content offers an insightful creation to using finite distinction and finite point tools for the computational answer of normal and partial differential equations. Readers achieve an intensive figuring out of the speculation underlying themethods offered within the textual content.

Front Tracking for Hyperbolic Conservation Laws

This can be the second one version of a well-received publication delivering the basics of the idea hyperbolic conservation legislation. numerous chapters were rewritten, new fabric has been extra, specifically, a bankruptcy on house based flux capabilities and the particular resolution of the Riemann challenge for the Euler equations.

Additional resources for The Schur Complement and Its Applications (Numerical Methods and Algorithms)

Example text

A transport-backtransport method for optical tomography. Inverse Problems, 14(5):1107–1130, 1998. 8. H. E. L. Barbour. Comparison of finite-difference transport and diffusion calculations for photon migration in homogeneous and heterogeneous tissue. Phys. Med. , 43:1285–1302, 1998. 9. R. Arridge, H. Dehghani, M. Schweiger, and E. Okada. The finite element model for the propagation of light in scattering media: A direct method for domains with non-scattering regions. Med. , 27(1):252–264, 2000. 10. B.

Specifically, eq. (5) can be rewritten as ∂ √ 1 √ −g pμˆ Lμ μˆ f + −g ∂xμ det −1 dp du ∂ ˆ ∂uˆi −Γ j μˆνˆ pμˆ pνˆ det dp du ˆ ∂ui ∂pˆj f = C[f ]. (8) This form is called “conservative” because the left hand side is expressed as divergences in spacetime and momentum space, so that volume integrals of these terms are transparently related to surface terms. In particular, it is obvious that the momentum space divergence vanishes upon integration over dP (given by eq. (3)), yielding the equation for particle number balance: ∂ √ 1 √ −g N μ = −g ∂xμ C[f ] dP, (9) where Nμ = Lμ μˆ pμˆ f dP (10) are the coordinate basis components of the particle number flux vector.

There is ample theoretical and observational evidence for this conclusion (see for example [6]). Inclusion of energy- and angle-dependent neutrino transport in spatially multidimensional simulations represents a significant computational challenge. Consider the “direct method” mentioned above, in which the neutrino distribution functions and all terms in the transport equation are discretized in all variables. Assume azimuthal symmetry; let the numbers of spatial zones in (r, θ) be (256, 128), and the numbers of momentum bins in energy and angle variables ( , ϑ, ϕ) be (64, 32, 16).

Download PDF sample

Rated 4.61 of 5 – based on 37 votes