| December 13 The final papers are graded. If you want to pick yours up before I leave town, please drop by my office 10-12 on Monday or Tuesday. Otherwise, you'll have to wait till after Christmas. |
| December 8 Solutions to homework set 8 have now been posted in Handouts below. |
| December 5 The final exam has been posted in the Handouts section, with an accompanying set of notes. See the first page of the final for directions. The final covers the entire course syllabus. You must return your exam to the usual box by 4pm on Friday, December 11. |
| December 5 Homework 8 will be returned by Tuesday, December 8. I will have office hours 1-2pm on Wednesday, December 9.
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| November 29 Solutions to homework set 7 have now been posted in Handouts below. Also, there was a small error in the solution given to question 4 on homework 6, which has now been fixed.
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| November 23 The final homework of the term will be due on Friday December 4, rather than on the Wednesday.
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| November 22 Solutions to homework set 6 have now been posted in Handouts below.
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| November 17 There were a couple of errors in the definition of the equivalence relation given near the beginning of lecture 15. A corrected version has now been posted.
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| November 16 Solutions to homework set 5 have now been posted in Handouts below.
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| November 16 The notes for lecture 21 contain slightly more material than we covered in the lecture. In particular, they include the definition of a simplicial map, which is needed for the homework.
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| November 13 The midterms have been graded. You can collect them from my office.
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| November 12 A slight alteration was made to question 2 of homework 6, shortly after it was posted.
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| November 10 Question 4 of Homework 5 asks you to prove something false. Apologies! You do not need to answer it. However, extra credit is available for anyone who can provide a proof that a composition of covering maps is a a covering map with the additional assumption that the spaces are locally (path connected and simply connected). Alternatively, extra credit is available for a correct solution to Exercise 6 on page 79 of Hatcher, which provides a counterexample to the original question.
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| October 28 The midterm exam has been posted in the Handouts section, with an accompanying set of notes. |
| October 25 The definition of a deformation retract given in the notes for lecture 8 (definition 2.27) was incorrect. A corrected version has been posted. |
| October 22 A question (formerly Question 4, concerning the Klein bottle) has been removed from Homework 4. A new version, without this question, has been posted. |
| October 21 There was an error in Question 2(b) of Homework 3. A corrected version has now been posted. |
October 19 I neglected to post the third homework set last week. It is now available below. As it was posted late, you may hand it in during the lecture on Friday, the 23rd. DO NOT put your homework in the box after 4pm on Wednesday, or it will remain there all week.
Normally, there is homework due every week except during the midterm and the final. In future, if I forget to post the homework, then YOU are responsible for reminding me, by email, to post it. There will be no further concessions if I forget to make it available on time.
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| October 7 There was an error in an exercise that I wrote on the board. It is not true that every sequence in a compact topological space has a convergent subsequence. (Although it is true whenever things are "nice".) See Exercise 1.45 in the notes for a corrected version. |
| September 30 There was an error in question 2 of Homework 1. It has now been fixed. |
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