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Titlebook: Unsolved Problems in Number Theory; Richard K. Guy Textbook 19811st edition Springer Science+Business Media New York 1981 Arithmetic.Merse

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发表于 2025-3-21 17:53:10 | 显示全部楼层 |阅读模式
书目名称Unsolved Problems in Number Theory
编辑Richard K. Guy
视频video
丛书名称Problem Books in Mathematics
图书封面Titlebook: Unsolved Problems in Number Theory;  Richard K. Guy Textbook 19811st edition Springer Science+Business Media New York 1981 Arithmetic.Merse
描述To many laymen, mathematicians appear to be problem solvers, people who do "hard sums". Even inside the profession we dassify ourselves as either theorists or problem solvers. Mathematics is kept alive, much more than by the activities of either dass, by the appearance of a succession of unsolved problems, both from within mathematics-itself and from the in­ creasing number of disciplines where it is applied. Mathematics often owes more to those who ask questions than to those who answer them. The solu­ tion of a problem may stifte interest in the area around it. But "Fermat‘s Last Theorem", because it is not yet a theorem, has generated a great deal of "good" mathematics, whether goodness is judged by beauty, by depth or byapplicability. To pose good unsolved problems is a difficult art. The balance between triviality and hopeless unsolvability is delicate. There are many simply stated problems which experts tell us are unlikely to be solved in the next generation. But we have seen the Four Color Conjecture settled, even ifwe don‘t live long enough to leam the status of the Riemann and Goldbach hypotheses, of twin primes or Mersenne primes, or of odd perfeet numbers. On the other
出版日期Textbook 19811st edition
关键词Arithmetic; Mersenne prime; Prime; Prime number; Zahlentheorie; function; mathematics; number theory; theore
版次1
doihttps://doi.org/10.1007/978-1-4757-1738-9
isbn_ebook978-1-4757-1738-9Series ISSN 0941-3502 Series E-ISSN 2197-8506
issn_series 0941-3502
copyrightSpringer Science+Business Media New York 1981
The information of publication is updating

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发表于 2025-3-21 21:14:23 | 显示全部楼层
Richard K. Guyriting instruction and evolution of writing assessment in the past three decades. Second, I will describe the three assessment paradigms, namely psychometric, teacher-based and individualized paradigms which theoretically underpin the use of indirect tests, direct tests and performance assessments i
发表于 2025-3-22 04:12:24 | 显示全部楼层
Richard K. Guys was presented and empirically studied on basis of DAX data. The major results from this study are that the presence of transaction costs might lead to significantly different results than for a perfect market and that the types of costs the investor occurs have different effects. Also, the optimal
发表于 2025-3-22 06:58:35 | 显示全部楼层
Richard K. Guynical indicators with a Multi-Objective Evolutionary Algorithms to choose the portfolio composition with two objectives the return and the risk. Two different chromosomes are used for representing different investment models with real constraints equivalents to the ones faced by managers of mutual f
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Richard K. Guyh return on investment in a conjunction with high rate of growth of the net income and a high profit margin. To obtain stocks with high valuation potential it is necessary to choose companies with a lower or average market capitalization, low PER, high rates of revenue growth and high operating leve
发表于 2025-3-23 05:07:05 | 显示全部楼层
Richard K. Guyuced in a larger examination-oriented culture such as Hong Kong. The chapter ends with a group activity about developing a portfolio programme and a reflection task on examining the issues of direct tests and performance assessment of writing.
发表于 2025-3-23 06:28:51 | 显示全部楼层
0941-3502 we don‘t live long enough to leam the status of the Riemann and Goldbach hypotheses, of twin primes or Mersenne primes, or of odd perfeet numbers. On the other 978-1-4757-1738-9Series ISSN 0941-3502 Series E-ISSN 2197-8506
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