# Math 4324

• Classes start Thu Jan 18th; Tu, Th 2:00--3:20pm.
• Location: Math 12.
• Office Hours: Tu, Th; 11:00--12:00.
• Homework: Set periodically and posted to the course website.
• Exams:
• The first midterm exam will be on Thursday the 8th of March.
• The second midterm exam will be on Tuesday the 24th of April.
• The final exam will be on Friday 11th of May from 4:30 pm to 7:00 pm.
• Syllabus:
• Outline: This course will develop some of the basic language of topology, which allows us to distinguish a straight line from a circle or your shoelace from a rubber band. These objects may also be distinguished using the language of geometry; however in this language they are all different, whereas in topology there is no difference between a straight line and your shoelace, or between a circle and a rubber band. In this sense topology is more flexible than geometry, but still retains some of its basic characteristics. Some of the basic things we will learn about include: how geometry gives rise to topology, compactness, connected spaces, continuous functions and classification of surfaces. Some of the topics I intend to cover are:
• Metric spaces
• Continuous functions between metric spaces
• Homeomorphism and isometry
• Topological spaces -- open and closed sets
• Interior and closure of a subset
• Continuous functions between topological spaces
• Subspaces
• Hausdorff spaces
• Compact spaces
• Quotient spaces and gluing of spaces
• Connected spaces
• Product spaces
• Surfaces -- orientability and classification
• Note: This syllabus may be subject to modest alterations in content as the semester progresses.
• Assessment:
• Homework assignments will contribute to 10% of your grade. It is important that you hand them in on time.
• There will be two midterm exams. Each midterm exam will be worth 25% of your grade.
• There will be a final exam, which will be worth 40%.
• You can use the following online tool for plotting surfaces.
• For the Mobius band enter the following:
• x = cos(2*pi*s)+t*cos(pi*s)*cos(2*pi*s)
• y = sin(2*pi*s)+t*cos(pi*s)*sin(2*pi*s)
• z = t*sin(pi*s)
• smin = 0, smax = 1
• tmin = -0.5, tmax = 0.5
• For the torus enter the following:
• x = cos(2*pi*s)+0.5*cos(2*pi*t)*cos(2*pi*s)
• y = sin(2*pi*s)+0.5*cos(2*pi*t)*sin(2*pi*s)
• z = 0.5*sin(2*pi*t)
• smin = 0, smax = 1
• tmin = 0, tmax = 1
• For the sphere enter the following:
• x = 2*(1-s)^(1/2)*s^(1/2)*cos(t)
• y = 2*(1-s)^(1/2)*s^(1/2)*sin(t)
• z = 2*s-1
• smin = 0, smax = 1
• tmin = 0, tmax = 2*pi
• Absences: You must inform me as soon as possible if you are or intend to be absent for an exam. Makeup exams will only be offered for legitimate absences such as university sanctioned activities and in the case of illness, which must be supported by a note from your physician.
• Academic Integrity: It is the aim of the faculty of Texas Tech University to foster a spirit of complete honesty and high standard of integrity. The attempt of students to present as their own any work not honestly performed is regarded by the faculty and administration as a most serious offense and renders the offenders liable to serious consequences, possibly suspension. “Scholastic dishonesty” includes, but it not limited to, cheating, plagiarism, collusion, falsifying academic records, misrepresenting facts, and any act designed to give unfair academic advantage to the student (such as, but not limited to, submission of essentially the same written assignment for two courses without the prior permission of the instructor) or the attempt to commit such an act. In particular:
• The submission of any work for credit (be it homework or exam) that has been copied from another source (including another person) will be regarded as an act of academic misconduct.
• You are permitted to seek help from other students, faculty members or private or Texas Tech tutors for homework problems only. However, any work submitted must be your own and reflect your own understanding of the material and not be merely copied or recited from another source or person (see above).
• Seeking or receiving aid from another source during an exam (including another person, who is not the instructor or proctor) will be regarded as an act of academic misconduct. You may be permitted to bring some notes into the examination -- I will provide instructions in advance.
• The use of phones and smartwatches during any examination is not permitted. Calculators may be permitted -- I will provide instructions in advance.
• This list is not exhaustive. You may consult the Student Handbook Part I Section B for further guidance and examples. If you are unsure whether any of your planned actions might constitute academic misconduct you should consult with me first in writing (through email).
• ADA Accommodation: Any student who, because of a disability, may require special arrangements in order to meet the course requirements should contact me as soon as possible to make any necessary arrangements. Students should present appropriate verification from Student Disability Services. Please note: instructors are not allowed to provide accommodations to a student until appropriate verification from Student Disability Services has been provided. For additional information, you may contact the Student Disability Services office in 335 West Hall.
• Religious Holidays: A student shall be excused from attending classes or other required activities, including examinations, for the observance of a religious holy day, including travel for that purpose. A student who intends to observe a religious holy day should make that intention known to me in writing prior to the absence. A student who is absent from classes for the observance of a religious holy day shall be allowed to take an examination or complete an assignment scheduled for that day within a reasonable time after the absence.

 Homework Date due Homework set 1 Thursday 8th February Homework set 2 Thursday 22nd February Homework set 3 Tuesday 6th March Homework set 4 Tuesday 3rd April Homework set 5 Tuesday 17th April Homework set 6 Thursday 3rd May
Back to homepage