Solving singular Yang-Baxter-like matrix equations poses significant challenges due to ill-conditioned matrices and high computational costs. To address these issues, this work investigated the development of zeroing neural networks for singular problems. Initially, we constructed an enhanced improved zeroing neural network as a transitional model by directly integrating Tikhonov regularization into existing frameworks. However, theoretical analysis revealed that this direct regularization approach has limitations, as it only guarantees convergence to a residual limit set rather than the exact solution due to irreducible null spaces. To address this limitation, we proposed the effective zeroing neural network (EZNN). Under the assumption of an invertible auxiliary matrix, the EZNN utilizes full-rank factorization to equivalently transform the high-dimensional singular problem into a low-dimensional full-rank matrix equation. This structural reduction bypasses the singularity issue, avoiding the need for Tikhonov regularization while mitigating memory overflow, thus enabling the precise processing of high-dimensional matrices.
Citation: Yiqiong Sun, Duanmei Zhou. Fixed-time zeroing neural networks for solving the singular Yang-Baxter-like matrix equation[J]. AIMS Mathematics, 2026, 11(10): 32288-32317. doi: 10.3934/math.20261269
Solving singular Yang-Baxter-like matrix equations poses significant challenges due to ill-conditioned matrices and high computational costs. To address these issues, this work investigated the development of zeroing neural networks for singular problems. Initially, we constructed an enhanced improved zeroing neural network as a transitional model by directly integrating Tikhonov regularization into existing frameworks. However, theoretical analysis revealed that this direct regularization approach has limitations, as it only guarantees convergence to a residual limit set rather than the exact solution due to irreducible null spaces. To address this limitation, we proposed the effective zeroing neural network (EZNN). Under the assumption of an invertible auxiliary matrix, the EZNN utilizes full-rank factorization to equivalently transform the high-dimensional singular problem into a low-dimensional full-rank matrix equation. This structural reduction bypasses the singularity issue, avoiding the need for Tikhonov regularization while mitigating memory overflow, thus enabling the precise processing of high-dimensional matrices.
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