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20. Polynomials Over Fields and Properties

The chapter elaborates on polynomials over fields, detailing their properties, division, and factorization. It introduces the concepts of irreducible and reducible polynomials, and explores the GCD of polynomials along with the Euclidean algorithm for finding it. Additionally, the chapter presents the factor theorem and concludes with discussions on polynomial factorization.

Sections

Polynomials Over Fields and Properties

This section discusses the properties of polynomials over fields, including division, factorization, and the concepts of reducible and irreducible polynomials.

20 Section Overview

Start current section content and materials

20.1 Division of Polynomials Over Fields

This section discusses the division of polynomials over fields, explaining the concepts of reducible and irreducible polynomials, as well as the properties of polynomial division.

20.2 Addition and Multiplication of Polynomials Over Fields

This section explores the addition and multiplication of polynomials over fields, discussing their properties and the significance of concepts like irreducible polynomials and the factor theorem.

20.3 The GCD of Polynomials Over Fields

This section introduces the concept of the greatest common divisor (GCD) of polynomials over fields, discussing its properties and the process of finding it.

20.4 Factorization of Polynomials

This section covers the factorization of polynomials over fields, explaining reducible and irreducible polynomials, and the concepts of polynomial division and GCD.

20.5 Irreducible Polynomials

This section discusses irreducible polynomials, which cannot be factored into non-constant polynomials, alongside their properties and the context of polynomial factorization over fields.

20.6 Factor Theorem for Polynomials Over Fields

This section covers the Factor Theorem, which establishes the criteria for determining if a polynomial has a certain linear factor.

Learning Objectives

  • Polynomials over fields exhibit unique properties that differ from those over rings.

  • The concept of division of polynomials mirrors traditional integer division but introduces unique structural elements for polynomials over fields.

  • Irreducibility indicates that a polynomial cannot be factored into non-trivial factors, playing a key role in polynomial theory.

Key Concepts

Polynomials over Fields

These are polynomials where the coefficients belong to a field, allowing for unique characteristics in operations like addition, multiplication, and division.

GCD of Polynomials

The greatest common divisor of two polynomials, which generalizes the concept from integers, indicating the largest polynomial that divides both without a remainder.

Irreducible Polynomial

A non-constant polynomial that cannot be factored into the product of two non-constant polynomials.

Factor Theorem

If a polynomial f(x) equals 0 when x is substituted with α, then (x - α) is a factor of f(x).

Practice Exercises

Total Questions

2

Estimated Time

4 min

Passing Score

70%

Instructions

  • Read each question carefully
  • You can use hints if you need help
  • Complete all questions before submitting

1 more question available

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