Adedire, O. Ndam, Joel N.
Published in
Journal of the Egyptian Mathematical Society

In this research, a mathematical model consisting of non-pharmaceutical control measures is formulated. The developed model helps to examine the transmission of COVID-19 infection in Plateau State, Nigeria, using face masks \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage...

Kikyo, Hirotaka

The automorphism groups of Hrushovski's pseudoplanes associated to rational numbers α with 1/3 >α≥1/4 are simple groups.

Zhang, Baoshuai Duan, Jun
Published in
Applied Mathematics and Nonlinear Sciences

In this paper, the CAViaR model was used to measure the HS300, HSI and N225 risk levels and result showed that CAViaR model was able to measure the sample risk value at the 5% confidence level. However, at the 1% confidence level, the CAViaR model severely underestimated the sample risk value. In order to solve this question, this paper introduces ...

Yu, Jiangman
Published in
Applied Mathematics and Nonlinear Sciences

This paper uses the data of China’s venture capital industry in the CVSource and Zero2IPO databases from 1999 to 2018 as a research sample. By using UCINET software to build the entire network of venture capital industry for social network analysis, I calculate the group tie density based on network interaction, status heterogeneity and faults base...

KIKYO, HIROTAKA

The automorphism group of Hrushovski's pseudoplane associated to 5/8 is a simple group.

Kikyo, Hirotaka

Hrushovski's pseudoplane associated to rational number 5/8 has a model complete theory.

Kikyo, Hirotaka
Published in
Archive for Mathematical Logic

Let Kf\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathbf {K}_f$$\end{document} be an ab initio amalgamation class with an unbounded increasing concave function f. ...

Kubiś, Wiesław Mašulović, Dragan
Published in
Applied Categorical Structures

We develop a theory of Katětov functors which provide a uniform way of constructing Fraïssé limits. Among applications, we present short proofs and improvements of several recent results on the structure of the group of automorphisms and the semigroup of endomorphisms of some Fraïssé limits.

Itai, Masanori

In [3] , we defined quantum 2-tori T_{q}^{2} for q not a root of unity, and showed its first-order theory is superstable. One of key theorems in [3] is Theorem 13. In this note we give some details of the proof of superstability which is an application of Lang-type property.

Horváth, Ákos G.
Published in
Journal of Geometry

We give a non-Paschian plane based on the property of betweenness which cannot be derived from an ordering of the points of a line. In this model there is no possibility to define the congruence of segments but we can define angle, triangle and angle measure, respectively. With respect to our definitions the plane has an elliptic character, meaning...