Professor: Brandon Seward
(pronouns: he/him/his)
Email: bseward@ucsd.edu
Lecture: MWF 11:00-11:50 via Zoom (navigate to
https://ucsd.zoom.us/j/99316078691 or use Meeting ID 993 1607 8691)
Lecture Notes
Office Hours via Zoom: W 12:00 - 1:00 & 2:00 - 4:00 via Zoom (navigate to
https://ucsd.zoom.us/j/99656671941 or use Meeting ID 996 5667 1941)
Office Hour Notes
Note: Office hours and lecture have different Meeting IDs!
Teaching Assistant: Srivatsa Srinivas
(pronouns: he/him/his)
Email: scsriniv@ucsd.edu
A01 Discussion: Thurs. 6:00-6:50 via Zoom (navigate to
https://ucsd.zoom.us/j/93036015847 or use Meeting ID 930 3601 5847)
A02 Discussion: Thurs. 7:00-7:50 via Zoom (navigate to
https://ucsd.zoom.us/j/92301387495 or use Meeting ID 923 0138 7495)
Office Hours via Zoom (morning): M 8:00-9:00 AM and Th 8:00-9:00 AM (navigate to
https://ucsd.zoom.us/j/98724904020 or use Meeting ID 987 2490 4020)
Office Hours via Zoom (evening): Tu 6:00-7:00 PM and W 6:00-7:00 PM (navigate to
https://ucsd.zoom.us/j/95926070197 or use Meeting ID 959 2607 0197)
Course Descritption: First course in a rigorous three-quarter sequence on real analysis.
Topics include: the real number system, basic topology, numerical
sequences and series, continuity.
Textbook: Principles of Mathematical Analysis by Walter Rudin, 3rd edition
. We will cover Chapters 1 through 4 (excluding the appendix to Chapter 1).
Additional Study Materials: (you will not be tested on these)
Lecture: Lecture will occur live on Zoom (use meeting ID: 993 1607 8691 or navigate to
https://ucsd.zoom.us/j/99316078691). Videos of our lectures will be posted on our Canvas page under the Media Gallery tab. Additionally, the
Lecture Notes I write in class will be updated shortly after each lecture.
Community Interaction:
Typically meeting in the classroom allows students the opportunity to
get to know one another and discuss the course material together. Since
class meetings will not occur, as a substitute we have a discussion
forum on Piazza that everyone is strongly encouraged to use. As part of
their weekly office hours, the professor and teaching assistant will
spend time each week responding to discussions on piazza (see above for
specific hours). Our piazza page is here:
https://piazza.com/ucsd/fall2020/math140a.
Homework: Homework
will be assigned regularly and due on Fridays at 9:00 PM. No late homework
will be accepted, but your lowest homework score will be dropped when
computing your final grade. On each assignment, a few problems will be
graded for correctness, while the others will be graded simply for
completion. We will use
Gradescope
for turning in homework. When registering for gradescope, please
register using your "@ucsd.edu" email address and use Entry Code D522XY
.
Homework 1 (Due Friday Oct. 9): Chapter 1, problems 4, 5, 8, 9
Homework 2 (Due Friday Oct. 16): Chapter 1, problems 1, 6, 7, 13, 15, 17, 18
Hint: 6(d) is easier if in 6(c) you
instead define B(x) to be the set of all b^t where t < x is
rational. With this definition, 6(c) is harder to prove. To prove 6(c)
with this definition apply 7(c).
Homework 3 (Due Friday Oct. 23): Chapter 2, problems 6, 7, 8, 9, 10, 11, and the following problem:
Problem A: Prove that the set of all injections from the set of natural numbers to itself is uncountable.
Homework 4 (Due Monday Nov. 2): Chapter 2, problems 12, 13, 14, 15, 17, 22, 29
Homework 5 (Due Friday Nov. 6): Chapter 2, problems 18, 19, 20, 21, and Chapter 3, problems 1, 2, 14(ab)
Homework 6 (Due Friday Nov. 13): Chapter 3, problems 3, 4, 5, 16(a), 20, 21, 22
Homework 7 (Due Friday Nov. 20): Chapter 3, problems 6, 7, 8, 9, 10, and the following problem:
Problem B: Let (a_n) be a sequence of
real numbers. Prove that ∑ a_n converges absolutely if and only
if ∑ a_n b_n converges for every bounded sequence of real numbers (b_n).
Homework 8 (Due Friday Dec. 4): Chapter 4, problems 1, 2, 3, 4, 5
Homework 9 (Due Friday Dec. 11): Chapter 4, problems 6, 7, 14, 15, 17, 18
For problem 6 the metric on the graph
of f is as follows: the distance from (x_1, f(x_1)) to (x_2, f(x_2)) is
the sum of the distance from x_1 to x_2 plus the distance from f(x_1)
to f(x_2).
Exams:
The midterm exams will be taken at home and solutions will be uploaded
to Gradescope. The exams will be open-book and open-note, but the use
of online resources and help from other humans is forbidden. If
cheating is suspected, students will be required to have a one-on-one
zoom meeting where students will have to solve similar problems and/or
comment on their exam solutions.
- First
Midterm (Eastern, Western): Practice A (solutions), Practice B (solutions). Covers Chapter 1 (not the appendix) and the
first two sections of Chapter 2 ("Finite, countable, and uncountable
sets" and "Metric spaces"). The exam will be offered at two times:
- either during our normal class time (11:00 - 11:50 AM on Wed. Oct. 28, local San Diego time)
- or 12 hours prior (11:00 - 11:50 PM on Tues. Oct. 27, local San Diego time)
- Second Midterm (Eastern, Western):
Practice A (solutions), Practice B (solutions).
Wednesday Nov. 25. Covers the
last three sections of Chapter 2 ("Compact sets," "Perfect sets," and
"Connected sets") and most of Chapter 3 (excluding "Addition and
Multiplication of Series" and "Rearrangements"). The exam will be
offered at two times:
- either during our normal class time (11:00 - 11:50 AM on Wed. Nov. 25, local San Diego time)
- or 12 hours later (11:00 - 11:50 PM on Wed. Nov. 25, local San Diego time)
- Final Exam:
Practice A (solutions), Practice B (solutions). Tuesday Dec. 15 from 11:30 AM to 2:30 PM. Covers Chapters 1 through 4
(excluding the appendix to Chapter 1), with a greater focus on Chapter
4. The exam will be offered at two times:
- either during the normal scheduled time (Tues. Dec. 15 from 11:30 AM to 2:30 PM, local San Diego time)
- or 12 hours later (starting Tues. Dec. 15 at 11:30 PM and ending Wed. Dec. 16 at 2:30 AM, local San Diego time)
Grading: Your final grade will be the maximum of the following two weighted averages:
- 20% Homework, 20% First Midterm, 20% Second Midterm, 40% Final Exam.
- 20% Homework, 20% Best Midterm, 60% Final Exam
Special Accommodations:
Students requiring accommodations should provide an OSD letter of
certification and OSD accommodation recommendation to the instructor as
soon as possible.
Course Schedule (items in gray may change)
Week
|
Monday
|
Wednesday
|
Friday
|
0
|
|
|
October 2 Ordered sets
|
1
|
October 5 Fields
|
October 7 Fields
The Real field
|
October 9 (HW 1 Due)
The Real field
The extended Real number system
The Complex field
|
2
|
October 12 The Complex field
Euclidean spaces
|
October 14 The Complex Field, Euclidean spaces
Finite, countable, and uncountable sets
|
October 16 (HW 2 Due) Finite, countable, and uncountable sets
Metric spaces
|
3
|
October 19 Metric spaces
|
October 21
Compact sets
|
October 23 (HW 3 Due)
Compact sets
|
4
|
October 26 Perfect sets
Review for midterm
|
October 28 First Midterm (Eastern, Western)
Practice A (solutions)
Practice B (solutions)
|
October 30
Connected sets
Convergent sequences
|
5
|
November 2 (HW 4 Due)
Convergent sequences
Subsequences
Cauchy sequences
|
November 4
Cauchy sequences
Upper and lower limits
|
November 6 (HW 5 Due)
Upper and lower limits
Some special sequences
Series
|
6
|
November 9
Series
Series of non-negative terms
The number e
|
November 11 Veterans Day
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November 13 (HW 6 Due)
The number e
The Root and Ratio Tests
|
7
|
November 16
Power series
Summation by parts
Absolute convergence
|
November 18 Addition and multiplication of series
Rearrangements
|
November 20 (HW 7 Due)
Rearrangements
Limits of functions
|
8
|
November 23
Limits of functions
Review
|
November 25 Second Midterm (Eastern, Western)
Practice A (solutions)
Practice B (solutions)
|
November 27 Thanksgiving Holiday
|
9
|
November 30
Continuous functions
|
December 2
Continuous functions
Continuity and compactness
|
December 4 (HW 8 Due)
Continuity and compactness
Continuity and connectedness
|
10 |
December 7
Discontinuities
Monotonic functions
|
December 9
Monotonic functions
Infinite limits and limits at infinity
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December 11 (HW 9 Due)
Reveiew
|
11
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Tuesday December 15, 11:30AM-2:30PM
Final Exam
Practice A (solutions), Practice B (solutions)
|