Groups and Group Actions: Lecture 11

May 2, 2016

In which we meet and explore quotient groups.

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Groups and Group Actions: Lecture 10

April 27, 2016

In which we think some more about homomorphisms, and meet normal subgroups.

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Groups and Group Actions: Lecture 9

April 25, 2016

In which we think about homomorphisms, and wonder how many genuinely different groups there are with small orders.

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Groups and Group Actions: Lecture 8.5

April 22, 2016

In which we wonder what a non-integer lecture is anyway.

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Groups and Group Actions: Lecture 8

March 10, 2016

In which we prove Lagrange’s theorem, and deduce many interesting results as a consequence.

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Groups and Group Actions: Lecture 7

March 9, 2016

In which we think about the link between equivalence relations and partitions, and meet cosets.

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Groups and Group Actions: Lecture 6

March 3, 2016

In which we think about cyclic groups, and renew an old friendship with equivalence relations.

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Groups and Group Actions: Lecture 5

March 2, 2016

In which we find that the alternating group is a group, and study subgroups in more detail.

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Groups and Group Actions: Lecture 4

February 25, 2016

In which we explore permutations in more detail.

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Groups and Group Actions: Lecture 3

February 24, 2016

In which we start to explore permutations.

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