AlgTop25: More on the fundamental group

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This video continues our discussion of the fundamental group of a space. We show that the homotopy classes of closed loops from a fixed point on a space actually form a group. And the important cases of the torus and the projective plane are studied in some detail.

This is the 25th lecture in this beginner's course on Algebraic Topology, given by Assoc Prof N J WIldberger at UNSW.
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Excellent, super-fast blackboard writer and drawer; lots of energy. Love these lectures and can't wait for the beyond!

charlesrkiss
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I am addicted to these lectures. Please - if it is possible - post the remaining ones.
Thank you Professor. You are a great teacher!

zdeklinowany
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He is really an amazing faculty who makes us easily understand the core base and removes the grey areas that might creep in while studying through textbook

swekchhasingh
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Your OCW lecture sets are some of the very best on Youtube, and unmatched for mathematics and computing lectures (from Dr Wildberger and Dr Buckland) so far as I've seen.
Hope to see the rest of this set soon and well-wishes for keeping this up!

yasiru
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@UNSWelearning
Thank you very much dear Sir N J WIldberger. You have a great grasp over the subject.
Please please post the remaining lecturer.

Best regards,
Afzal

afzalsoomro
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Really an excellent lecturer, and so good at drawing on the blackboard, too. I hope you will share some more videos of these lectures. :o)

Kuschelfleu
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Excellent, super-fast drawer and writer; lots of energy. Great teacher; hope he's doing well.

In this lecture, I'm a little confused about the loop/(all loops) being closed down to the constant loop, Xo, [4:00] while in another lecture AlgTop13 [11:36], the retraction, seems to contradict this: wrt, the changing of degrees.

charlesrkiss
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Looking for lecture 26. Excellent lectures on the fundamental group!

palui
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What’s going on? Where is the rest of the course?
This is, for me, the best course on youtute. Please restore.

roeelazar
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Excellent. I could not find the lecture 26 though.

subh
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Why is it called Algebraic Topology and not Group Topology?

njerpe
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Any chance of getting those lecture any time soon...desperately need it :-)

mudassire
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I am studying topology out of Lee's text Top. Manifolds" and Massey's book. I don't have enough money to attend a university. I love this topic, but I really need your lectures to help me.
Please, I beg you, post more lectures. I just finished lecture 25, it was great. But where is lecture 26?

jagtennis
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Hi All,

Lectures 26 and beyond will be posted sometime in the future. Thanks for your comments

unswelearning