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On interpolation problem for multidimensional harmonizable stable sequences with noise observations

Statistics Theory 2025-02-25 v1 Statistics Theory

Abstract

We consider the problem of optimal linear estimation of the functional ANξ=j=0N(a(j))ξ(j)A_N \vec{\xi} =\sum_{j = 0}^{N} (\vec{a}(j))^{\top} \vec{\xi}(j) that depends on the unknown values ξ(j),j=0,1,,N,\vec{\xi}(j),j=0,1,\dots,N, of a vector-valued harmonizable symmetric α\alpha-stable random sequence ξ(j)={ξk(j)}k=1T\vec{\xi}(j)=\left \{ \xi_ {k} (j) \right \}_{k = 1} ^ {T}, from observations of the sequence ξ(j)+η(j)\vec{\xi}(j)+\vec{\eta}(j) at points jZ{0,1,,N}j\in\mathbb Z\setminus\{0,1,\dots,N\}. We consider the problem for mutually independent vector-valued harmonizable symmetric α\alpha-stable random sequences ξ(j)={ξk(j)}k=1T\vec{\xi}(j)=\left \{ \xi_ {k} (j) \right \}_{k = 1} ^ {T} and η(j)={ξk(j)}k=1T\vec{\eta}(j)=\left \{ \xi_ {k} (j) \right \}_{k = 1} ^ {T} which have absolutely continuous spectral measures and the spectral densities f(θ)f(\theta) and g(θ)g(\theta) satisfying the minimality condition.

Keywords

Cite

@article{arxiv.2502.15717,
  title  = {On interpolation problem for multidimensional harmonizable stable sequences with noise observations},
  author = {Mikhail Moklyachuk},
  journal= {arXiv preprint arXiv:2502.15717},
  year   = {2025}
}

Comments

arXiv admin note: substantial text overlap with arXiv:1607.00754, arXiv:2406.17917

R2 v1 2026-06-28T21:53:11.212Z