MATH2040A - Linear Algebra II - 2020/21
Announcement
- Sep 3: Welcome to the course! No tutorial lecture in the 1st week. Here is the course outline: [Download file]
- Sep 21: 1. Midterm 1 will be held on October 9, 2020 (Friday) and Midterm 2 will be held on November 6, 2020 (Friday). Please mark it down on your calendar. Midterm 1 will be held about three weeks from now. 2. Midterm examinations will be conducted online using "Blackboard" as a "take-home exam" with a 24 hours limit. For midterm 1, the examination question will be available on October 9, 2020 at 10:00am and the deadline for submission (via "Blackboard") is October 10, 2020 at 10:00am. It is expected that the paper can be finished within 3 hours. As such, the 24-hour limit should allow enough flexibility. 3. Midterm 1 will cover materials taught from Week 1 to Week 4.
- Oct 6: Covers of Midterm One are updated as the only Chapter 1 of the textbook, that is Topic 1 to Topic 4 of the course lectures.
- Oct 8: Here are a few tips for Test One: [Download file]
- Nov 3: The final examination will start at 10:00am on December 18th, 2020. The exam will take 24 hours and hence will end at 10:00am on the next day December 19th 2020. Please mark the time and date in your calendar. It will be an open-book test and the answers should be submitted in Blackboard. Further details will be announced in due course.
- Nov 4: Here are a few tips for Test Two: [Download file]
- Nov 11: Classes (both lecture and tutorial) on 19 November 2020 (Thursday) will be suspended due to the 88th Congregation on that day.
- Dec 15: Here are a few tips for Final Exam [Download file]
General Information
Lecturer
-
Prof DUAN Renjun
- Office: LSB 206
- Tel: 3943 7977
- Email:
Teaching Assistant
-
Mr. CHAN Kai Fai
- Office: LSB 232
- Tel: 3943 5294
- Email:
-
Mr. CHEN Yiting
- Office: AB1 614
- Tel: 3943 4109
- Email:
Time and Venue
- Lecture: Tue 10:30AM - 12:15PM at Zoom and Thu 4:30PM - 5:15PM at Zoom
- Tutorial: Thu 5:30PM - 6:15PM at Zoom
Course Description
This course is a continuation of Linear Algebra I (MATH 1030). It is a second course on linear algebra and will cover basic concepts of abstract vector spaces, linear transformations, eigenvalues and eigenvectors, diagonalizability, operators on inner product spaces, orthogonality and Gram-Schmidt process, adjoint, normal and self-adjoint operators, spectral theorems, and if time permits, quadratic forms and Jordan canonical forms. More emphasis will be put on the theoretical understanding of basic concepts in linear algebra.
Textbooks
- Friedberg, Insel and Spence, Linear algebra, 4th edition, Pearson.
References
- Axler, Linear Algebra Done Right, 3rd edition, Springer.
Pre-class Notes
Lecture Notes
- Zoom2040A0908 (Topic 1: Vector space and Topic 2: Subspace)
- Zoom2040A0910 (Continue Topic 2 and Topic 3: Span and linear independence)
- Zoom2040A0915 (Continue Topic 3 and Topic 4: Basis and dimension)
- Zoom2040A0917 (Continue Topic 4)
- Zoom2040A0922 (Continue Topic 4)
- Zoom2040A0924 (Topic 5: Linear Transformation)
- Zoom2040A0929 (Topic 6: Null space, range and dimension theorem)
- Zoom2040A1006 (Topic 7: Matrix representation of a linear transformation)
- Zoom2040A1008 (Topic 8: Invertibility and isomorphism)
- Zoom2040A1013 (Continue Topic 8 and Topic 9: Change of coordinates)
- Zoom2040A1015 (Topic 10: Eigenvalue and eigenvector)
- Zoom2040A1020 (Continue Topic 10 and Topic 11: Diagonalizability)
- Zoom2040A1022 (Continue Topic 11)
- Zoom2040A1027 (Continue Topic 11 and Topic 12: Invariant space and CH Thm)
- Zoom2040A1029 (Continue Topic 12)
- Zoom2040A1103 (Topic 13: Inner product space)
- Zoom2040A1105 (Continue Topic 13 and Topic 14: GS Orthogonalization)
- Zoom2040A1110 (Continue Topic 14 and Topic 15: Orthogonal complement)
- Zoom2040A1112 (Continue Topic 15 and Topic 16: Adjoint)
- Zoom2040A1117 (Continue Topic 16 and Topic 17: Normal and self-adjoint operators)
- Zoom2040A1124 (Continue Topic 17)
- Zoom2040A1126 (Topic 18: Unitary/orthogonal matrix/operator)
- Zoom2040A1201 (Continue Topic 18 and Topic 19: Spectral thm)
- Zoom2040A1203 (Continue Topic 19; The end)
Tutorial Notes
- Tutorial 1
- Tutorial 1 Exercise Answer
- Tutorial 2
- Tutorial 2 Exercise Answer
- Tutorial 3
- Tutorial 3 Exercise Answer
- Tutorial 4
- Tutorial 4 Exercise Answer
- Tutorial 5
- Tutorial 5 Exercise Answer
- Tutorial 6
- Tutorial 6 Exercise Answer
- Tutorial 7
- Tutorial 7 Exercise Answer
- Tutorial 8
- Tutorial 8 Exercise Answer
- Tutorial 9
- Tutorial 9 Exercise Answer
- Tutorial 10
- Tutorial 10 Exercise Answer
Assignments
- Homework 01
- Homework 02
- Homework 03
- Homework 04
- Homework 05
- Homework 06
- Homework 07
- Homework 08
- Homework 09
- Homework 10 (corrected)
- Homework 11
Quizzes and Exams
- Test 1: Front page and answer sheet template
- Test 1: Question paper
- Suggested solution to Test 1
- Test 2: Front page and answer sheet template
- Test 2: Question paper
- Suggested solution to Test 2
- Final exam: Front page and answer sheet template
- Final exam: Question paper
Solutions
- HW1_solutions
- HW2_solutions
- HW3_solutions
- HW4_solutions
- HW5_solutions
- HW6_solutions
- HW7_solutions_v2 (updated)
- HW8_solutions
- HW9_solutions
- HW10_solutions
- HW11_solutions
Useful Links
- MATH2040B
- Video for Zoom2040A0908
- Video for Zoom2040A0910
- Video for Zoom2040A0915
- Video for Zoom2040A0917
- Video for Zoom2040A0922
- Video for Zoom2040A0924
- Video for Zoom2040A0929
- Video for Zoom2040A1006-Part I
- Video for Zoom2040A1006-Part 2
- Video for Zoom2040A1008
- Video for Zoom2040A1013
- Video for Zoom2040A1015
- Video for Zoom2040A1020
- Video for Zoom2040A1022
- Video for Zoom2040A1027 (not available; sorry)
- Video for Zoom2040A1029
- Video for Zoom2040A1103
- Video for Zoom2040A1105
- Video for Zoom2040A1110
- Video for Zoom2040A1112
- Video for Zoom2040A1117
- Video for Zoom2040A1124
- Video for Zoom2040A1126
- Video for Zoom2040A1201
- Video for Zoom2040A1203
Honesty in Academic Work
The Chinese University of Hong Kong places very high importance on honesty in academic work submitted by students, and adopts a policy of zero tolerance on cheating and plagiarism. Any related offence will lead to disciplinary action including termination of studies at the University. Although cases of cheating or plagiarism are rare at the University, everyone should make himself / herself familiar with the content of the following website:
http://www.cuhk.edu.hk/policy/academichonesty/and thereby help avoid any practice that would not be acceptable.
Assessment Policy Last updated: December 18, 2020 09:50:32