Homework
Syllabus Class Notes Solutions to some HW problems
Puzzle for summer: Show the closed unit disk can be obtained as a disjoint union of closed straight line segments, each of positive length. Proof by diagram is fine. If you solve it, take a photo of your drawing with your phone and email it to me! (Challenge: prove it for closed unit ball in R^n.)
Final exam: R 5/7, 1:00 pm. The exam will cover all sections and homework problems, with some emphasis on material covered after the second midterm (Sec 11-12, HWs 18-23).
HW 23, due M 4/27: Do hw23.pdf (do at least half of the problems by F).
HW 22, due W 4/22: Do hw22.pdf (do at least half of the problems by M).
HW 21, due F 4/17: Read the second page of Section 12 by W. Do hw21.pdf.
HW 20, due F 4/10 M 4/13: Read the first page of Section 12. Do hw20.pdf.
HW 19, due W 4/8 F 4/10: Do hw19.pdf.
HW 18, due F 4/3: Do hw18.pdf.
Midterm 2: W 4/1; it will cover HWs 10-17.
For M 3/30: Review for midterm and bring questions. You can also bring questions on hw18.
Read Section 11 by Friday 3/26.
HW 17, due W 3/25: Read all of Section 10. Do hw17.pdf (can be turned in on Friday).
HW 16, due M 3/23: Read all of Section 9 by F 3/20. Do hw16.pdf (due M, but try to do the first 3 or 4 problems by F).
HW 15, due W 3/18: Read the rest of Section 8.Do hw15.pdf.
HW 14, due M 3/16: Read Section 8 up to Connected Sums.Do hw14.pdf.
HW 13, due F 3/6: Read Section 7. Do hw13.pdf
HW 12, due M 3/2: Read Section 6. Do hw12.pdf.
HW 11, due W 2/25 F 2/27: Read the rest of Section 5. Do hw11.pdf.
HW 10, due M 2/23: Read first page of Section 5. Do hw10-temp.pdf.
Midterm 1, W 2/18. Covers HWs 1-9.
HW 9, due W 2/11: Read all of Section 4.Do hw09.pdf.
HW 8, due M 2/9: Read all of Section 3. Do hw08.pdf, and Problem 5.6 of Prosolov-p37.PDF.
HW 7, due F 2/6: Read p.3 of Sec 2. Do hw07.pdf.
HW 6, due W 2/4: Do hw06.pdf.
HW 5, due M 2/2: Read Page 2 of Section 2. Do hw05.pdf.
Hint for the extra problem on the Cantor Set: If we write all points in the Cantor Set in base 3, what do we get?
HW 4, due F 1/30: Read Page 1 of Section 2. Do hw04.pdf.
HW 3, due W 1/28: Read Page 3 of Section 1. Do hw03.pdf.
Solutions to Intuitive Topology problems 1.2-1.5 are posted below.
Turning a punctured torus inside out: Video (to view it in slow motion, download the file and open it in Mathematica)
HW 2, due M 1/26: Read Page 2 of Section 1. Do the hw02.pdf problems (posted below).
HW 1, due F 1/23: Read Page 1 of Section 1. Also read handout on: Intuitive Topology pages 1-3. Do the hw01.pdf problems (posted below).
Preview of future HW and Classnotes (most of these will be modified before being officially posted, so they are just for "preview", not for "use").