So basically I need to do a linear solve on a block-tridiagonal matrix. I figured I would compare against SparseArrays and a custom routine I just wrote. Here is a MWRE. using Random using ...
An algorithm is presented for solving a system of linear equations Bu = k where B is tridiagonal and of a special form. This form arises when discretizing the equation - d/dx (p(x) du/dx) = k(x) (with ...
DELRAY BEACH — A woman died Wednesday morning after a southbound Tri-Rail train struck her in Delray Beach, police said. Investigators did not immediately identify the woman or say what led to the ...
What we're trying to test is that the Mumps requires more memory than it initially predicts. Maybe Mumps has improved its memory prediction for this type of matrix (tridiagonal) to realize that it ...
We consider the block matrices and 3-dimensional graph manifolds associated with a special type of tree graphs. We demonstrate that the linking matrices of these graph manifolds coincide with the ...
1 The Leslie and Susan Gonda Interdisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel 2 The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, ...
A block representation of the BLU factorization for block tridiagonal matrices is presented. Some properties on the factors obtained in the course of the factorization are studied. Simpler expressions ...
Abstract: It is important that the eigenproblem of a matrix is solved in the matrix analysis and its engineering application. For a normal matrix with multiplex eigenvalues, a method of block ...
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