3 papers
stat.ME2025
Goodness-of-fit Tests for Heavy-tailed Random Fields
Ying Niu, Zhao Chen, Christina Dan Wang +1
We develop goodness-of-fit tests for max-stable random fields, which are used to model heavy-tailed spatial data. The test statistics are constructed based on the Fourier transform…
stat.ME2025
Asymptotic Theory for Regularized Estimation in Functional Time Series Models
Ying Niu, Yuwei Zhao, Zhao Chen +1
Functional autoregressive (FAR) models provide a fundamental framework for analyzing temporally dependent functional data. However, the infinite-dimensional nature of the underlyin…
math.FA2025
Precompactness in bivariate metric semigroup-valued bounded variation spaces
Jingshi Xu, Yinglian Niu
In this paper, we show that if a set in bivariate metric semigroups-valued bounded variation spaces is pointwise totally bounded and joint equivariated then it is precompact. These…