Dense Egyptian fractions |
| |
Authors: | Greg Martin |
| |
Institution: | School of Mathematics, Institute for Advanced Study, Princeton, New Jersey 08540 |
| |
Abstract: | Every positive rational number has representations as Egyptian fractions (sums of reciprocals of distinct positive integers) with arbitrarily many terms and with arbitrarily large denominators. However, such representations normally use a very sparse subset of the positive integers up to the largest denominator. We show that for every positive rational there exist representations as Egyptian fractions whose largest denominator is at most and whose denominators form a positive proportion of the integers up to , for sufficiently large ; furthermore, the proportion is within a small factor of best possible. |
| |
Keywords: | |
|
| 点击此处可从《Transactions of the American Mathematical Society》浏览原始摘要信息 |
| 点击此处可从《Transactions of the American Mathematical Society》下载免费的PDF全文 |
|