MATH 255, Section 201

Session 2017W, Term 2 (Jan - Apr 2018)

Welcome to Senping Luo's home page

Last update: 2018.01.21

Instructor: Senping Luo
I am a mathematician working day and night to discover the structure of the world by analyzing PDE. Email:
Office: Mathematics Annex, room 1220
Telephone: 778-681-5582
Office hours: M W F 11:00-12:00 am, F 9:00-9:50 pm, W 2:00-2:50,or by appointment, feel free to sent me an email. You are welcome to ask me questions after every lesson immediately.
Any questions and concerns just come to my office, talk to me is helpful for your further study.
Attendance will be eared extra marks.
Teaching assistant: Jieliang Hong; ;You can contact him for homework related things.

Notice for Math Learning Center.

  • Math Learning Center.

    Sample Midterm test 1

  • 2018/1/23.
  • Solutions of Sample Midterm test 1, 2018/1/27.

    Lecture notes

    How to use the lecture notes? Basically, we first read the examples in the lecture notes, if necessary, then we read more. Read the example is necessary, but the others are not, depend on whether you can understand the example or not.
  • 2018/1/3, Section 1.1.
  • 2018/1/5, Section 1.2 and 1.3.
  • 2018/1/8, Section 2.1.
  • 2018/1/10, Section 2.2.
  • 2018/1/12, Part one: Section 2.3.
  • 2018/1/12, Part two: Section 2.4.
  • 2018/1/15, Section 2.5.
  • 2018/1/17, Part one: Section 3.1.
  • 2018/1/17, Outline of Section 3.2 and 3.3.
  • 2018/1/17, Section 3.2.
  • 2018/1/17, Section 3.3.
  • 2018/1/22, Outline of Section 3.4 .
  • 2018/1/22, Section 3.4 .
  • 2018/1/23, Section 3.5 part 1.
  • 2018/1/23, Section 3.5 part 2
  • 2018/1/25, Section 3.6
  • 2018/2/5, Section 3.7
  • 2018/2/5, Section 3.8 Part 1
  • 2018/2/7, Section 3.8 Part 2
  • 2018/2/7, Section 3.8 Part 3
  • 2018/2/7, Outline of Section 3.8
  • 2018/2/9, Outline of Section 6.1 and 6.2
  • 2018/2/9, Section 6.1 ans 6.2
  • 2018/2/14, Section 6.2 part 2
  • 2018/2/14, Section 6.3
  • 2018/2/16, Section 6.4
  • 2018/2/16, useful formulas for L and L^-1

    Suggested Homework

    Most test questions will be like some of the Suggested Homework and Assigned Homework problems. Make a serious attempt to solve Suggested Homework problems first, before consulting the Student Solutions Manual. If you missed a lecture, this is an approximate guide to what topics were covered.

    Assigned Homework

    For HW4, you can submit on crowdmark or in the class. From homework 5, only submitting on crowdmark are accepted.

    Hand in your Assigned Homework solutions ON TIME for marks. Homework is due at the beginning of the lecture on the due date. Late papers will be accepted only until the end of the lecture on the due date, but with a mark penalty. Papers handed in after the end of the lecture (9:50 am) on the due date will not be marked.

    Put your NAME and UBC I.D. NUMBER in the TOP RIGHT corner of the FIRST page. STAPLE multiple pages together in the TOP LEFT corner. You can pick the homework from 12:00 am every Friday near the door of Math Annex 1220 before we finish the set up of Crowdmark.

  • Homework Assignment 1 due Jan 12 Comments on HW1
  • Solutions of HW1
  • Homework Assignment 2 due Jan 19.
  • Solutions of HW2
  • Homework Assignment 3 due Jan 26, Homework 3 has been revised, some typos fixed. Comments on HW3
  • Solutions of HW3
  • Homework Assignment 4
  • Homework Assignment 5, due Feb 16
  • Solutions of HW5
  • Homework Assignment 6, due Mar 2

    Midterm Tests (one in late January, one in late February or early March)

    No notes, books, etc. allowed. No calculators, cell phones, etc. allowed. Numerical answers may be given as "calculator ready".

    Final Examination (in April)

    Link to UBC final exam schedule

    Grading Scheme

    NOTE: Attendance will be eared extra marks.

    Selected Publications in Refereed Journals

    More research papers see

  • (with Y. Guo, W. Zou) The existence, uniqueness and nonexistence of the ground state to the N-coupled Schrodinger systems in R^n, Nonlinearity, 2018 .
  • (with W. Zou, J. Wei) On a transcendental equation involving quotients of gamma functions. Proc. Amer. Math. Soc. 145 (2017) .
  • (with Z. Guo, W. Zou) On critical systems involving fractional Laplacian. J. Math. Anal. Appl. 446 (2017) .
  • (with W. Zou) Liouville theorems for integral systems related to fractional Lane-Emden systems in R^n. Differential Integral Equations 29 (2016) .
  • (with X. Luo etc) Pseudo-parity-time symmetry in periodically high-frequency driven systems: perturbative analysis. J. Phys. A 47 (2014) .

    Selected Preprints

  • (with J. Wei, W. Zou) On the triharmonic lane-Emden equation, July, 2016.
  • (with W. Zou) Existence, nonexistence, symmetry and uniqueness of ground state for critical Schrodinger system involving Hardy term.
  • (with J. Wei, W. Zou) On the finite Morse index solution of quadharmonic lane-Emden equation.

    Work in progress

  • Modular function and Nonlocal variational problems.

    The great source when learning mathematics

    Professor J.C. Wei

    Tsinghua University

    See also