## 3H: Metric Space and Basic Topology MATHS4077

• School: School of Mathematics and Statistics
• Credits: 20
• Level: Level 4 (SCQF level 10)
• Typically Offered: Semester 2
• Available to Visiting Students: Yes

### Short Description

This course provides a sound grounding in the basic properties of metric and topological spaces, and in particular extends the concept of continuity to metric spaces and then to topological spaces

### Timetable

34 x 1hr lectures and 12 x 1hr tutorials in a semester.

None

### Excluded Courses

Geometry and Topology I 86PL

Geometry and Topology II 86PM

### Assessment

90% Examination, 10% Coursework.

Main Assessment In: April/May

Are reassessment opportunities available for all summative assessments? Not applicable

Reassessments are normally available for all courses, except those which contribute to the Honours classification. For non Honours courses, students are offered reassessment in all or any of the components of assessment if the satisfactory (threshold) grade for the overall course is not achieved at the first attempt. This is normally grade D3 for undergraduate students and grade C3 for postgraduate students. Exceptionally it may not be possible to offer reassessment of some coursework items, in which case the mark achieved at the first attempt will be counted towards the final course grade. Any such exceptions for this course are described below.

### Course Aims

The main aim of this course is to provide a sound grounding in the basic properties of metric and topological spaces. In particular, the concept of continuity which was introduced rigorously in Level 2 for real functions is extended to metric spaces and then to topological spaces. Geometric applications including topological groups and group actions and an introduction to surfaces are also included.

### Intended Learning Outcomes of Course

By the end of this course students will be able to:

■ show that a function is or is not a metric;

■ show that a set in a metric space is or is not open and/or closed;

■ show that a function between metric spaces is or is not continuous;

■ show that a sequence in a metric space is or is not convergent;

■ show that a metric space is or is not complete;

■ verify that a given family of sets is a topology;

■ show that two topological spaces are (or are not) homeomorphic;

■ explain what it means for a topological space to be compact, connected, path-connected, Hausdorff, first countable, second countable, and verify that each of these is a topological property;

■ explain the ideas associated with the product topology (two factor spaces) and the quotient topology;

■ verify that certain groups are topological groups;

■ identify the orbit spaces of some group actions;

■ explain the ideas associated with surfaces and their classification;

■ prove the main theorems in the course, and use these results to solve other problems.

None