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An Algorithmic Approach to Solve Continuum Hypothesis 求解连续统假设的一种算法
Pub Date : 2020-11-25 DOI: 10.2139/ssrn.3318201
Lam Kai Shun
The continuum hypothesis has been unsolved for hundreds of years. In other words, can I answer it completely? By refuting the culturally responsible continuum [1], one can link the problem to the mathematical continuum, and it is possible to disproof the continuum hypothesis [2] . To go ahead a step, one may extend our mathematical system (by employing a more powerful set theory) and solve the continuum problem by three conditional cases. This event is sim-ilar to the status cases in the discriminant of solving a quadratic equation. Hence, my proposed al-gorithmic flowchart can best settle and depict the problem. From the above, one can further con-clude that when people extend mathematics (like set theory — ZFC) into new systems (such as Force Axioms), experts can solve important mathematical problems (CH). Indeed, there are differ-ent types of such mathematical systems, similar to ancient mathematical notation. Hence, different cultures have different ways of representation, which is similar to a Chinese saying: “different vil-lages have different laws.” However, the primary purpose of mathematical notation was initially to remember and communicate. This event indicates that the basic purpose of developing any new mathematical system is to help solve a natural phenomenon in our universe.
连续体假说几百年来一直没有得到解决。换句话说,我能完全回答这个问题吗?通过驳斥文化上负责任的连续统b[1],人们可以将问题与数学连续统联系起来,并且有可能反驳连续统假设b[2]。更进一步,我们可以扩展我们的数学系统(通过使用更强大的集合理论),并通过三种条件情况来解决连续统问题。这个事件类似于解二次方程的判别式中的状态情况。因此,我提出的算法流程图可以最好地解决和描述这个问题。从上面可以进一步得出结论,当人们将数学(如集合论)扩展到新的系统(如力公理)时,专家可以解决重要的数学问题(CH)。事实上,有不同类型的这样的数学系统,类似于古代数学符号。因此,不同的文化有不同的表现方式,这类似于中国的一句谚语:“不同的村庄有不同的法律。”然而,数学符号最初的主要目的是为了记忆和交流。这一事件表明,发展任何新的数学系统的基本目的是帮助解决我们宇宙中的自然现象。
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引用次数: 1
The Critics and Contributions of Mathematical Philosophy in Hong Kong Secondary Education 数学哲学在香港中学教育中的批判与贡献
Pub Date : 2020-11-16 DOI: 10.32861/ajams.71.16.26
Lam Kai Shun
There are various schools of mathematical philosophy. However, none of them can be founded on mathematics alone. At the same time, there are two types of mathematical proof styles: Dialectic and algorithm mathematical proof. The relationship between proof and philosophy is to study philosophical problems with mathematical models. This type of proof is important to Hong Kong Secondary education. In addition, teachers should explain the connection between mathematics-based subjects, such as physics, so that lessons are more interesting rather than technical. Mathematics relates to nearly all other subjects, and as such has the role of a ‘public servant’ when it comes to serving them. One role of mathematics is to act as a ‘rational’ instrument for various subjects. This can be shown in many ancient human activities, such as Daoism and Liu Hiu, together with their symbolic representations. These examples are similar to Jewish culture; when discussing confidence, Abraham is often mentioned due to being the “Father of Confidence”. Thus, it may be said that mathematics is more than just a servant—it is also a cultural subject that has been recorded throughout history. To conclude, other than mathematical proof, Hong Kong teachers should also allow students to learn the cultural context behind various topics and subjects.
数学哲学有不同的流派。然而,它们都不能单独建立在数学的基础上。同时,数学证明有两种类型:辩证法和算法数学证明。证明与哲学的关系是用数学模型来研究哲学问题。这类证明对香港中学教育很重要。此外,教师应该解释以数学为基础的学科之间的联系,如物理,这样课程更有趣,而不是技术。数学与几乎所有其他学科都有关系,因此在为他们服务时,它扮演着“公仆”的角色。数学的一个作用是充当各种学科的“理性”工具。这可以在许多古代人类活动中表现出来,比如道教和刘秀,以及它们的象征性表征。这些例子与犹太文化相似;在讨论信心时,亚伯拉罕经常被提到,因为他是“信心之父”。因此,可以说数学不仅仅是一个仆人,它也是一个贯穿历史的文化主题。综上所述,除了数学证明外,香港教师还应该让学生了解不同主题和科目背后的文化背景。
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引用次数: 0
The Gompertz Gumbel II Distribution: Properties and Applications Gompertz Gumbel II分布:性质与应用
Pub Date : 2020-11-16 DOI: 10.32861/ajams.71.1.15
A. A. Ogunde, G. A. Olalude, D. Omosigho
In this paper we introduced Gompertz Gumbel II (GG II) distribution which generalizes the Gumbel II distribution. The new distribution is a flexible exponential type distribution which can be used in modeling real life data with varying degree of asymmetry. Unlike the Gumbel II distribution which exhibits a monotone decreasing failure rate, the new distribution is useful for modeling unimodal (Bathtub-shaped) failure rates which sometimes characterised the real life data. Structural properties of the new distribution namely, density function, hazard function, moments, quantile function, moment generating function, orders statistics, Stochastic Ordering, Renyi entropy were obtained. For the main formulas related to our model, we present numerical studies that illustrate the practicality of computational implementation using statistical software. We also present a Monte Carlo simulation study to evaluate the performance of the maximum likelihood estimators for the GGTT model. Three life data sets were used for applications in order to illustrate the flexibility of the new model.
本文引入了Gompertz Gumbel II (GG II)分布,它推广了Gumbel II分布。该新分布是一种灵活的指数型分布,可用于模拟不同程度不对称的实际数据。与Gumbel II分布不同的是,它表现出单调的故障率下降,新的分布对于单峰(浴缸形)故障率的建模是有用的,这有时是现实生活数据的特征。得到了新分布的结构性质,即密度函数、危险函数、矩、分位数函数、矩生成函数、阶数统计、随机排序、人义熵。对于与我们的模型相关的主要公式,我们提出了数值研究,说明使用统计软件计算实现的实用性。我们还提出了蒙特卡罗模拟研究,以评估GGTT模型的最大似然估计器的性能。为了说明新模型的灵活性,应用中使用了三个生命数据集。
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引用次数: 2
Handling Outliers and Missing Data in Regression Models Using R: Simulation Examples 使用R处理回归模型中的异常值和缺失数据:模拟示例
Pub Date : 2020-09-10 DOI: 10.32861/ajams.68.187.203
M. Abonazel
This paper has reviewed two important problems in regression analysis (outliers and missing data), as well as some handling methods for these problems. Moreover, two applications have been introduced to understand and study these methods by R-codes. Practical evidence was provided to researchers to deal with those problems in regression modeling with R. Finally, we created a Monte Carlo simulation study to compare different handling methods of missing data in the regression model. Simulation results indicate that, under our simulation factors, the k-nearest neighbors method is the best method to estimate the missing values in regression models.
本文综述了回归分析中的两个重要问题(异常值和缺失数据),以及这些问题的处理方法。此外,还介绍了两个应用程序来理解和研究这些方法。为研究人员使用r进行回归建模时处理这些问题提供了实践依据。最后,我们创建了蒙特卡罗模拟研究,比较了回归模型中缺失数据的不同处理方法。仿真结果表明,在我们的模拟因素下,k近邻法是估计回归模型缺失值的最佳方法。
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引用次数: 8
Annotations on the Relationship Among Discriminant Functions 判别函数间关系的注解
Pub Date : 2020-09-10 DOI: 10.32861/ajams.68.161.165
Awogbemi, Clement Adeyeye
Different forms of discriminant functions and the essence of their appearances were considered in this study. Various forms of classification problems were also considered, and in each of the cases mentioned, classification from simple functions of the observational vector rather than complicated regions in the higher-dimensional space of the original vector were made. Violation of condition of equal variance covariance matrix for Linear Discriminant Function (LDF) results to Quadratic Discriminant Function (QDF). The relationships among the classification statistics examined were established: The Anderson’s (W) and Rao’s (R) statistics are equivalent when the two sample sizes are equal, and when a constant is equal to 1, W, R and John-Kudo’s (Z) classification statistics are asymptotically comparable. A linear relationship is also established between W and Z classification statistics.
本研究考虑了不同形式的判别函数及其出现的本质。还考虑了各种形式的分类问题,在上述每种情况下,都是从观测向量的简单函数而不是原始向量的高维空间中的复杂区域进行分类。违反线性判别函数(LDF)等方差协方差矩阵的条件,得到二次判别函数(QDF)。建立了所检验的分类统计量之间的关系:当两个样本量相等时,Anderson 's (W)和Rao 's (R)统计量相等,当一个常数等于1时,W、R和John-Kudo 's (Z)分类统计量渐近可比较。W和Z分类统计量之间也建立了线性关系。
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引用次数: 0
A Note on Different Types of Probabilities of Misclassification 关于不同类型的误分类概率的说明
Pub Date : 2020-09-10 DOI: 10.32861/ajams.68.181.186
Awogbemi, Clement Adeyeye
Whenever a discriminant function is constructed, the attention of a researcher is often focused on classification. The underlined interest is how well does a discriminant function perform in classifying future observations correctly. In order to assess the performance of any classification rule, probabilities of misclassification of a discriminant function serves as a basis for the procedure. Different forms of probabilities of misclassification and their associated properties were considered in this study. The misclassification probabilities were defined in terms of probability density functions (pdf) and classification regions. Apparent probability of misclassification is expressed as the proportion of observations in the initial sample which are misclassified by the sample discriminant function. Different methods of estimating probabilities of misclassification were related to each other using their individual shortcomings. The status of degrees of uncertainties associated with probabilities of misclassification and their implications were also specified.
每当构造判别函数时,研究人员的注意力往往集中在分类上。重点关注的是判别函数在正确分类未来观察结果方面的表现有多好。为了评估任何分类规则的性能,判别函数的误分类概率作为该过程的基础。本研究考虑了不同形式的误分类概率及其相关性质。用概率密度函数(pdf)和分类区域来定义错误分类概率。误分类表观概率表示为初始样本中观测值被样本判别函数误分类的比例。不同的误分类概率估计方法利用各自的缺点相互联系。还详细说明了与误分类概率有关的不确定程度的状况及其影响。
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引用次数: 0
Forecasting of COVID-19 Cases in Kurdistan Region Using Some Statistical Models 基于几种统计模型的库尔德斯坦地区新冠肺炎病例预测
Pub Date : 2020-09-10 DOI: 10.32861/ajams.68.172.180
S. Hussen
Nowadays the new universal disease of the coronavirus that is called the epidemic COVID-19 is spread as geometric progression among the people around the world, so, such pathogen considered the most dangerous threat facing humanity. This study aimed to derive the best forecasting models for the close future cases of infected, recovered, and deaths in the four provinces of Kurdistan Region-Iraq to avoid more loss of human lives by applying more health care in certain province. Two forecasting methods were used including Exponential Smoothing and ARIMA models. The results indicate that both ARIMA and Exponential Smoothing models were close to each other for predicting the infected cases of COVID-19 in Kurdistan Region provinces, and the predicting models show that the pandemic might not be under control unless the people apply the government instructions for health care and keep social distances.
如今,被称为COVID-19的新型普遍疾病冠状病毒在全球范围内以几何级数传播,因此这种病原体被认为是人类面临的最危险的威胁。本研究旨在为伊拉克库尔德斯坦地区四个省近期的感染病例、康复病例和死亡病例建立最佳预测模型,从而通过在某些省实施更多的医疗保健措施来避免更多的生命损失。采用了指数平滑和ARIMA模型两种预测方法。结果表明,ARIMA模型和指数平滑模型对库尔德斯坦地区各省新冠肺炎感染病例的预测结果非常接近,预测模型显示,除非人们遵守政府的卫生保健指示并保持社交距离,否则疫情可能无法得到控制。
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引用次数: 1
A Peer Search on Integer Solutions to Quadratic Diophantine Equation with Three Unknowns (Equation) 三未知数二次Diophantine方程(方程)整数解的对等搜索
Pub Date : 2020-09-10 DOI: 10.32861/ajams.68.166.171
A. Vijayasankar, Sharadha Kumar, M. Gopalan
The non- homogeneous ternary quadratic diophantine (Equation) is analyzed for its patterns of non-zero distinct integral solutions. Various interesting relations between the solutions and special numbers namely polygonal, Pronic and Gnomonic numbers are exhibited.
分析了非齐次三元二次丢芬图方程的非零离散积分解的模式。揭示了解与特殊数即多边形数、质子数和多项式数之间的各种有趣关系。
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引用次数: 0
Response Triggered Architecture for E-Payment Examined for General Purpose Transaction 一般用途交易的电子支付响应触发体系结构研究
Pub Date : 2020-08-25 DOI: 10.32861/ajams.68.153.160
Akomolafe Dipo Theophilus, A. Stephen
The explosive growth in internet coupled with advancement in Information and Communication Technology (ICT) has made business transactions much easier than it used to be in the past. For example, e-commerce has particularly benefited from the introduction of GSM system. One of the major challenges, however, is how to isolate fraudulent transactions from genuine businesses. This becomes more imperative as the advancement in ICT has brought with it fraud and related scams. In this work, we examined different types of e-commerce as well as the challenges being encountered in the course of daily transactions. We took advantage of the current trends in mobile communication networks, particularly GSM and proposed a system based on Response Triggered Architecture for electronic transaction. Our proposed system is platform independent which means only little modification is needed when switching from one platform to another. We used Visual.basic.net and knowledge in fraud for our system prototype and presented the results in the body of this work.
互联网的爆炸式增长加上信息和通信技术(ICT)的进步使商业交易比过去容易得多。例如,电子商务特别受益于GSM系统的引入。然而,主要挑战之一是如何将欺诈交易与真正的业务隔离开来。随着信息通信技术的进步带来了欺诈和相关诈骗,这一点变得更加必要。在这项工作中,我们研究了不同类型的电子商务,以及在日常交易过程中遇到的挑战。我们利用当前移动通信网络特别是GSM的发展趋势,提出了一种基于响应触发架构的电子交易系统。我们提出的系统是平台无关的,这意味着从一个平台切换到另一个平台时只需要很少的修改。我们使用Visual.basic.net和欺诈方面的知识作为我们的系统原型,并在本工作的主体部分展示了结果。
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引用次数: 0
Study of MHD Heat and Mass Transfer Flow for Hall and Ion-Slip Currents Effects in High Porosity Medium and Revolving System 高孔隙率介质和旋转系统中霍尔效应和离子滑移效应的MHD传热传质流研究
Pub Date : 2020-07-04 DOI: 10.32861/ajams.67.100.125
M. Hossain, M. A. Samad, M. Alam
In high porosity medium and revolving system the effects of ion-slip and Hall currents are studied on MHD heat and mass transfer flow. The non-linear coupled partial differential equations are determined using byl transformations and solve these equations employing finite difference method. Velocity, temperature as well as concentration profiles are studied for the concerned physical parameters and results are presented graphically. Due to the Hall and ion-slip parameters, Eckert number, and porosity parameter the velocity profiles are pronounced while it is declined for the effects of magnetic parameter, Prandtl number. Also the magnetic parameter enhances the temperature profiles. On the other hand, the temperature (concentration) profile decreases (increases) for the increasing effect of Prandtl number (Soret number). The rate of changes of velocity, temperature and concentration profiles are also presented graphically.
在高孔隙率介质和旋转系统中,研究了离子滑移和霍尔电流对MHD传热传质流的影响。利用byl变换确定非线性耦合偏微分方程,并用有限差分法求解。对有关物理参数的速度、温度和浓度分布进行了研究,并以图形形式给出了结果。由于霍尔参数、离子滑移参数、埃克特数和孔隙率参数的影响,速度分布明显,而磁参数、普朗特数的影响使速度分布减小。此外,磁参数也增强了温度分布。另一方面,随着普朗特数(索雷特数)的增加,温度(浓度)曲线减小(增大)。速度变化率、温度变化率和浓度变化率也用图形表示。
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引用次数: 0
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Academic Journal of Applied Mathematical Sciences
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