
About Course
Introduction To Rings And Fields.
This course will cover the basics of abstract rings and fields, which are an important part of any abstract algebra course sequence. We will spend roughly 4-5 weeks on rings. We will begin with definitions and important examples. We will focus cover prime, maximal ideals, and important classes of rings like integral domains, UFDs and PIDs. We will also prove the Hilbert basis theorem about noetherian rings. The last 3-4 weeks will be devoted to field theory. We will give definitions, basic examples. Then we discuss the extension of fields, adjoining roots, and prove the primitive element theorem. Finally, we will classify finite fields.
INTENDED AUDIENCE: B.Sc and M.Sc students studying mathematics
Course Content
Introduction To Rings And Fields
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Introduction To Rings And Fields – Introduction
00:00 -
Introduction, main definitions
00:00 -
Examples of rings.
00:00 -
More examples
00:00 -
Polynomial rings 1
00:00 -
Polynomial rings 2
00:00 -
Problems 1
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Problems 2
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Problems 3
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Kernels, ideals
00:00 -
Homomorphisms
00:00 -
First isomorphism and correspondence theorems
00:00 -
Examples of correspondence theorem
00:00 -
Prime ideals
00:00 -
Maximal ideals, integral domains
00:00 -
Problems 4
00:00 -
Problems 5
00:00 -
Problems 6
00:00 -
Field of fractions, Noetherian rings 1
00:00 -
Noetherian rings 2
00:00 -
Hilbert Basis Theorem
00:00 -
Irreducible, prime elements
00:00 -
Quotient rings
00:00 -
Irreducible, prime elements, GCD
00:00 -
Principal Ideal Domains
00:00 -
Unique Factorization Domains 1
00:00 -
Unique Factorization Domains 2
00:00 -
Existence of maximal ideals
00:00 -
Gauss Lemma
00:00 -
Z[X] is a UFD
00:00 -
Eisenstein criterion and Problems 7
00:00 -
Problems 8
00:00 -
Problems 9
00:00 -
Field homomorphisms
00:00 -
Algebraic elements form a field
00:00 -
Degree of a field extension 1
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Degree of a field extension 2
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Field extensions 1
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Field extensions 2
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Splitting fields
00:00 -
Finite fields 1
00:00 -
Finite fields 2
00:00 -
Finite fields 3
00:00 -
Problems 10
00:00 -
Problems 11
00:00
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