上传者: fanbird2008
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上传时间: 2019-12-21 18:49:29
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文件大小: 5.1MB
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文件类型: pdf
A First Course in Abstract Algebra introduces groups and commutative rings.
Group theory was invented by E. Galois in the early 1800s, when he used groups
to completely determine when the roots of polynomials can be found by formulas
generalizing the quadratic formula.