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Axioms, Volume 11, Issue 9

September 2022 - 66 articles

Cover Story: With the help of symbolic computer packages, combined with the Chevalley cohomology, rank one solvable Lie algebras with a filiform nilradical and a given eigenvalue spectrum are studied for their cohomological rigidity. The Hochschild–Serre factorization plays a central role, as it allows us to restrict the computations to a specific class of cocycles characterized by an invariance property, thus providing the possibility of implementing reliable algorithmic procedures to isolate the solutions of the Jacobi scheme that correspond to cohomologically rigid algebras in the variety of $n$-dimensional Lie algebra laws. View this paper
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Articles (66)

  • Article
  • Open Access
1,857 Views
6 Pages

13 September 2022

In the year 2014, Almeida et al. introduced a new class of mappings, namely, contractions of Geraghty type. Additionally, in the year 2021, Beg et al. introduced the concept of generalized F-proximal contraction of the first kind and generalized F-pr...

  • Article
  • Open Access
7 Citations
3,691 Views
20 Pages

13 September 2022

This paper combines the green industrial strategy and green financial policies for the construction industry implemented in China in the context of carbon neutrality. A total of 67 listed companies in the construction industry from 2017 to 2020 were...

  • Article
  • Open Access
2 Citations
1,809 Views
13 Pages

10 September 2022

This paper considers an unknown functional estimation problem in a regression model with multiplicative and additive noise. A linear wavelet estimator is first constructed by a wavelet projection operator. The convergence rate under the pointwise err...

  • Article
  • Open Access
1 Citations
2,127 Views
16 Pages

9 September 2022

This study considers the team recommendation problem as a generalized assignment problem. Firstly, a formal description of the team recommendation problem is given; secondly, a team-recommended generalized assignment model (TRGAM) is established base...

  • Article
  • Open Access
2,464 Views
19 Pages

Political Signed Temporal Networks: A Deep Learning Approach

  • Alejandro Chinea Manrique de Lara and
  • Elka Korutcheva

8 September 2022

The evolution analysis of networks whose links are either positive or negative, representing opposite relationships such as friendship and enmity, has been revealed to be particularly useful in sociological contexts. Using a large relational dataset...

  • Communication
  • Open Access
9 Citations
2,987 Views
10 Pages

Selection of Appropriate Symbolic Regression Models Using Statistical and Dynamic System Criteria: Example of Waste Gasification

  • Pavel Praks,
  • Marek Lampart,
  • Renáta Praksová,
  • Dejan Brkić,
  • Tomáš Kozubek and
  • Jan Najser

8 September 2022

In this paper, we analyze the interpretable models from real gasification datasets of the project “Centre for Energy and Environmental Technologies” (CEET) discovered by symbolic regression. To evaluate CEET models based on input data, tw...

  • Article
  • Open Access
8 Citations
5,891 Views
16 Pages

8 September 2022

It is typically difficult to estimate the number of degrees of freedom due to the leptokurtic nature of the Student t-distribution. Particularly in studies with small sample sizes, special care is needed concerning prior choice in order to ensure tha...

  • Article
  • Open Access
12 Citations
2,170 Views
13 Pages

Geometry of Indefinite Kenmotsu Manifolds as *η-Ricci-Yamabe Solitons

  • Abdul Haseeb,
  • Mohd Bilal,
  • Sudhakar K. Chaubey and
  • Mohammad Nazrul Islam Khan

7 September 2022

In this paper, we study the properties of ϵ-Kenmotsu manifolds if its metrics are *η-Ricci-Yamabe solitons. It is proven that an ϵ-Kenmotsu manifold endowed with a *η-Ricci-Yamabe soliton is η-Einstein. The necessary condition...

  • Article
  • Open Access
7 Citations
1,910 Views
20 Pages

7 September 2022

The class of measure spaces which can be represented as unions of Lebesgue-Rohlin spaces with continuous measures contains a lot of important examples, such as Rn for any n∈N with the Lebesgue measure. In this work we consider symmetric function...

  • Article
  • Open Access
5 Citations
2,274 Views
27 Pages

Inferences of a Mixture Bivariate Alpha Power Exponential Model with Engineering Application

  • Refah Alotaibi,
  • Mazen Nassar,
  • Indranil Ghosh,
  • Hoda Rezk and
  • Ahmed Elshahhat

7 September 2022

The univariate alpha power exponential (APE) distribution has several appealing characteristics. It behaves similarly to Weibull, Gamma, and generalized exponential distributions with two parameters. In this paper, we consider different bivariate mix...

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Axioms - ISSN 2075-1680