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On some tensor tubal-Krylov subspace methods via the T-product (2010.14063v2)

Published 24 Oct 2020 in math.NA and cs.NA

Abstract: In the present paper, we introduce new tensor Krylov subspace methods for solving linear tensor equations. The proposed methods use the well known T-product for tensors and tensor subspaces related to tube fibers. We introduce some new tensor products and the related algebraic properties. These new products will enable us to develop third-order the tensor tubal GMRES and the tensor tubal Golub Kahan methods. We give some properties related to these methods and proopse some numerical experiments.

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