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arXiv · 2512.15164

Well-Posedness of Pseudo-Parabolic Gradient Systems with State-Dependent Dynamics

Harbir Antil·Daiki Mizuno·Ken Shirakawa·Naotaka Ukai
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Abstract

This paper develops a general mathematical framework for pseudo-parabolic gradient systems with state-dependent dynamics. The state dependence is induced by variable coefficient fields in the governing energy functional. Such coefficients arise naturally in scientific and technological models, including state-dependent mobilities in KWC-type grain boundary motion and variable orientation-adaptation operators in anisotropic image denoising. We establish two main results: the existence of energy-dissipating solutions, and the uniqueness and continuous dependence on initial data. The proposed framework yields a general well-posedness theory for a broad class of nonlinear evolutionary systems driven by state-dependent operators. As illustrative applications, we present an anisotropic image-denoising model and a new pseudo-parabolic KWC-type model for anisotropic grain boundary motion, and prove that both fit naturally within the abstract structure of $(\mathrm{S})_ν$.

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Harbir Antil, Daiki Mizuno, Ken Shirakawa, Naotaka Ukai. 2025-12-31. Well-Posedness of Pseudo-Parabolic Gradient Systems with State-Dependent Dynamics. https://arxiv.org/abs/2512.15164

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