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arXiv · 2502.12588

Littlewood-Paley Type Inequality for Evolution Systems Associated with Pseudo-Differential Operators

Un Cig Ji·Jae Hun Kim
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Abstract

In this paper, we first prove that the kernel of convolution operator, corresponding the composition of pseudo-differential operator and evolution system associated with the symbol depending on time, satisfies the Hörmander's condition. Secondly, we prove that the convolution operator is a bounded linear operator from the Besov space on $\mathbb{R}^{d}$ into $L^{q}(\mathbb{R}^{d};V)$ for a Banach space $V$. Finally, by applying the Calderón-Zygmund theorem for vector-valued functions, we prove the Littlewood-Paley type inequality for evolution systems associated with pseudo-differential operators.

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Un Cig Ji, Jae Hun Kim. 2025-02-18. Littlewood-Paley Type Inequality for Evolution Systems Associated with Pseudo-Differential Operators. https://arxiv.org/abs/2502.12588

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