Evasion and prediction II
نویسندگان
چکیده
A subgroup G ≤ Z exhibits the Specker phenomenon if every homomorphism G → Z maps almost all unit vectors to 0. We give several combinatorial characterizations of the cardinal se, the size of the smallest G ≤ Z exhibiting the Specker phenomenon. We also prove the consistency of b < e, where b is the unbounding number and e the evasion number. Our results answer several questions addressed by Blass. 1991 Mathematics subject classification. 03E05 03E35 20K20 20K25
منابع مشابه
Presenting a Model for Predicting Tax Evasion of Guilds Based on Data Mining Technique
In this research, considering the importance of the topic and the gap in previous researches, a model for predicting tax evasion of guilds based on data mining technique is presented. The analyzed data includes the review of 5600 tax files of all trades with tax codes in Qazvin province during the years 2013-2018. The tax file related to guilds is in five tax groups, including the guild group o...
متن کاملTax Evasion in Oil-Exporting Countries: The Case of Iran
N umerous studies have been conducted about the determinants of tax evasion. In all of these studies, this phenomenon has been taken into account in the framework of balanced budget and a non-oil economy. In this study the determinants are examined by extending an endogenous growth model and considering two cases for the government budget in an oil-exporting country along with its budget d...
متن کاملWhen a Tree Falls: Using Diversity in Ensemble Classifiers to Identify Evasion in Malware Detectors
Machine learning classifiers are a vital component of modern malware and intrusion detection systems. However, past studies have shown that classifier based detection systems are susceptible to evasion attacks in practice. Improving the evasion resistance of learning based systems is an open problem. To address this, we introduce a novel method for identifying the observations on which an ensem...
متن کاملvalue added tax and tax evasion
The phenomenon of tax evasion has been always one of the most major issues among economists due to it's devastating effects on the economy and the process of economic development. Many scholars have always sought to provide solutions to reduce and limit tax evasion. The introduction of the VAT system can be seen as a milestone in the area of economic transparency and tax evasion, which refers t...
متن کاملCalculating Income Tax Evasion of Legal Entities and Examining its Sustainability through Threshold Non-linear Method
The purpose of this study is to calculate tax evasion based on the income of legal entities and to examine its stability, which has been done by estimating the Tanzi monetary demand function during 1370-1397. The demand function included the ratio of currency holdings to supply of money as a dependent variable and the tax variables of legal entities, the ratio of wages and salaries to national...
متن کامل