Abstract
The division algorithm for polynomials provides a notion of divisibility in \(\mathbb K[X]\) when \(\mathbb K=\mathbb Q\),\(\mathbb R\) ou \(\mathbb C\), and such a notion enjoys properties analogous to those of the corresponding concept in \(\mathbb Z\). It is then natural to ask whether there exists some notion of primality in \(\mathbb K[X]\), which furnishes some sort of unique factorisation with properties similar to the unique factorisation of integers. Our purpose in this chapter is to give precise answers to these questions, which shall encompass polynomials with coefficients in \(\mathbb Z_p\), for some prime integer p.
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Notes
- 1.
Although this definition is slightly more restrictive than that usually found in most textbooks, it will be sufficient for our purposes.
- 2.
For another proof of this item, see Problem 6, page 469.
- 3.
Note that item (b) provides another proof of part of Wilson’s Theorem 10.26 .
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George Pólya and Gábor Szegö , Hungarian mathematicians of the twentieth century.
References
A. Caminha, An Excursion Through Elementary Mathematics I - Real Numbers and Functions (Springer, New York, 2017)
J.B. Conway, Functions of One Complex Variable I (Springer, New York, 1978)
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Caminha Muniz Neto, A. (2018). On the Factorisation of Polynomials. In: An Excursion through Elementary Mathematics, Volume III. Problem Books in Mathematics. Springer, Cham. https://doi.org/10.1007/978-3-319-77977-5_19
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DOI: https://doi.org/10.1007/978-3-319-77977-5_19
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