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- W2895869125 abstract "The system of tensor equations (TEs) has received much considerable attention in the recent literature. In this paper, we consider a class of generalized tensor equations (GTEs). An important difference between GTEs and TEs is that GTEs can be regarded as a system of non-homogenous polynomial equations, whereas TEs is a homogenous one. Such a difference usually makes the theoretical and algorithmic results tailored for TEs not necessarily applicable to GTEs. To study properties of the solution set of GTEs, we first introduce a new class of so-named ${rm Z}^+$-tensor, which includes the set of all P-tensors as its proper subset. With the help of degree theory, we prove that the system of GTEs with a leading coefficient ${rm Z}^+$-tensor has at least one solution for any right-hand side vector. Moreover, we study the local error bounds under some appropriate conditions. Finally, we employ a Levenberg-Marquardt algorithm to find a solution to GTEs and report some preliminary numerical results." @default.
- W2895869125 created "2018-10-26" @default.
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- W2895869125 date "2018-10-13" @default.
- W2895869125 modified "2023-09-26" @default.
- W2895869125 title "Generalized tensor equations with leading structured tensors" @default.
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- W2895869125 doi "https://doi.org/10.48550/arxiv.1810.05870" @default.
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