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From the 1 of 6 linked papers with an AI index.

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6 papers

math.FA2026

Extrapolation to product Morrey-Herz spaces and applications

Xi Cen, Zichen Song

The paper introduces product Morrey‑Herz and product block‑Herz spaces, establishes their duality and the boundedness of the strong maximal operator, and then uses Rubio de Francia…

math.DS2025

The discontinuous limit case of an archetypal oscillator with constant excitation and van der Pol damping: A single equilibrium

Xiuli Cen, Hebai Chen, Yilei Tang +1

This paper investigates the global dynamics of the discontinuous limit case of an archetypal oscillator with constant excitation that exhibits a single equilibrium. For parameter r…

math.CA2025

The multilinear fractional bounded mean oscillation operator theory I: sparse domination, sparse theorem, off-diagonal extrapolation, quantitative weighted estimate -- for generalized commutators

Xi Cen, Zichen Song

This paper introduces and studies a class of multilinear fractional bounded mean oscillation operators (denoted {\rm -FBMOOs}) defined on ball-basis measure spaces $(X, μ, \mat…

math.CA2025

The multilinear fractional sparse operator theory II: refining weighted estimates via multilinear fractional sparse forms

Xi Cen

This paper refines the main results from our previous study on sparse bounds of generalized commutators of multilinear fractional singular integral operators in \cite{CenSong2412}.…

math.CA2025

New fractional type weights and the boundedness of some operators

Xi Cen, Qianjun He, Zichen Song +1

Two classes of fractional type variable weights are established in this paper. The first kind of weights are variable multiple weights, which are…

math.CA2025

The multilinear fractional sparse operator theory I: pointwise domination and weighted estimate

Xi Cen, Zichen Song

How to establish some specific quantitative weighted estimates for the generalized commutator of multilinear fractional singular integral operator is the f…