The tensor t‐function: A definition for functions of third‐order tensors
Journal Article
·
· Numerical Linear Algebra with Applications
- Charles University Prague Czech Republic
Summary A definition for functions of multidimensional arrays is presented. The definition is valid for third‐order tensors in the tensor t‐product formalism, which regards third‐order tensors as block circulant matrices. The tensor function definition is shown to have similar properties as standard matrix function definitions in fundamental scenarios. To demonstrate the definition's potential in applications, the notion of network communicability is generalized to third‐order tensors and computed for a small‐scale example via block Krylov subspace methods for matrix functions. A complexity analysis for these methods in the context of tensors is also provided.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- grant DE‐SC 00165783
- OSTI ID:
- 1600869
- Journal Information:
- Numerical Linear Algebra with Applications, Journal Name: Numerical Linear Algebra with Applications Vol. 27 Journal Issue: 3; ISSN 1070-5325
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
Cited by: 25 works
Citation information provided by
Web of Science
Web of Science
Similar Records
Approximate tensor-product preconditioners for very high order discontinuous Galerkin methods
What is the gradient of a scalar function defined on a subspace of square matrices?
What is the gradient of a scalar function defined on a subspace of square matrices?
Journal Article
·
2017
· Journal of Computational Physics
·
OSTI ID:1526501
What is the gradient of a scalar function defined on a subspace of square matrices?
Journal Article
·
2024
· Indian Journal of Pure and Applied Mathematics
·
OSTI ID:2426769
What is the gradient of a scalar function defined on a subspace of square matrices?
Technical Report
·
2024
·
OSTI ID:2377939