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Published in 2021 at "Results in Mathematics"
DOI: 10.1007/s00025-021-01414-5
Abstract: Let $$p_1, p_2$$ be nonzero rational functions, $$\alpha _1, \alpha _2$$ be nonzero constants, and $$P_d(z, f)$$ be a difference polynomial in f of degree d. We prove that every finite order meromorphic solution of…
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Keywords:
nonlinear difference;
difference equations;
meromorphic solutions;
difference ... See more keywords
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Published in 2020 at "Acta Mathematica Scientia"
DOI: 10.1007/s10473-020-0407-z
Abstract: In this article, we discuss, by Nevanlinna theory, the influence of multiple values and deficiencies on the uniqueness problem of algebroid functions. We get several uniqueness theorems of algebroid functions which include an at most…
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Keywords:
algebroid functions;
finite order;
uniqueness algebroid;
functions finite ... See more keywords
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Published in 2019 at "Geometriae Dedicata"
DOI: 10.1007/s10711-020-00523-9
Abstract: Let $$\text {Mod}(S_g)$$ Mod ( S g ) be the mapping class group of the closed orientable surface $$S_g$$ S g of genus $$g\ge 2$$ g ≥ 2 . In this paper, we derive necessary…
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Keywords:
order;
mod;
mapping classes;
finite order ... See more keywords
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Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3157313
Abstract: This paper considers the finite-order filter design problem for the source and multiple full-duplex (FD) relays in a cooperative communication system under frequency-selective fading channels. The goal is to optimize the source and relay filters…
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Keywords:
filter;
interference;
source;
relay ... See more keywords
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Published in 2021 at "Studia Scientiarum Mathematicarum Hungarica"
DOI: 10.1556/012.2021.58.1.1486
Abstract: We study the effect on sections of a soluble-by-finite group G of finite rank of an almost fixed-point-free automorphism φ of G of finite order. We also elucidate the structure of G if φ has…
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Keywords:
order;
soluble groups;
automorphisms finite;
finite order ... See more keywords