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Differential Geometry

Title
Differential Geometry
Semester
E2025
Master programme in
Mathematical Bioscience / Physics and Scientific Modelling
Type of activity

Course

Mandatory or elective

Mandatory/Elective

Mandatory: Mathematical Bioscience. Physics and Scientific Modelling - Thematic profile 2 Elective: Physics and Scientific Modelling - General profile

Teaching language
English
Study regulation

Read about the Master Programme and find the Study Regulations at ruc.dk

Læs mere om uddannelsen og find din studieordning på ruc.dk

REGISTRATION AND STUDY ADMINISTRATIVE
Registration

Sign up for study activities at stads selvbetjeningwithin the announced registration period, as you can see on the Studyadministration homepage.

When signing up for study activities, please be aware of potential conflicts between study activities or exam dates.

The planning of activities at Roskilde University is based on the recommended study programs which do not overlap. However, if you choose optional courses and/or study plans that goes beyond the recommended study programs, an overlap of lectures or exam dates may occur depending on which courses you choose.

Number of participants
ECTS
5
Responsible for the activity
Morten Andersen (moan@ruc.dk)
Head of study
Jesper Schmidt Hansen (jschmidt@ruc.dk)
Teachers
Study administration
INM Registration & Exams (inm-exams@ruc.dk)
Exam code(s)
U60169
ACADEMIC CONTENT
Overall objective

The overall objective of the course in Differential Geometry is to give the student an understanding of its construction and formalism, which enables the student to apply differential geometry in the critical analysis of other mathematical contexts.

Detailed description of content

• The course starts with a general discussion of curves in Rn and their representations.

• The course then continues into a discussion of regular surfaces in R3.

• Starting from the very definition of a regular surface we discuss methods of constructing regular surfaces and prove that the change of coordinates on a regular surface is smooth. This naturally leads to a discussion of

• The tangent space to a regular surface at a point of the surface, the differential of a differentiable mapping between two regular surfaces, the first fundamental form on a regular surface, the notion of curve-length, area and integration on a regular surface and notions of curvature of regular surfaces

Course material and Reading list

The exact currciulum will be announced on the Moodle site for the course

Overall plan and expected work effort

The course is a 5 ETCS credit course, corresponding to an expected student work-load of 135 hours.

The stipulated workload distribution is:

  • Pre-class 40 hours

  • Classes 40 hours

  • Post classes 40 hours

  • Exam preparation 15 hours.

Format
Evaluation and feedback

The course includes formative evaluation based on dialogue between the students and the teacher(s). Students are expected to provide constructive critique, feedback and viewpoints during the course if it is needed for the course to have better quality. Every other year at the end of the course, there will also be an evaluation through a questionnaire in SurveyXact. The Study Board will handle all evaluations along with any comments from the course responsible teacher. Furthermore, students can, in accordance with RUCs ‘feel free to state your views’ strategy through their representatives at the study board, send evaluations, comments or insights form the course to the study board during or after the course.

Programme

The course will consist of lecures and exercises.

The students are required to show active participation in the course and give 1-2 short presentations to the rest of class of a selected part of the curriculum as well as presenting solutions to 2-4 exercises to the rest of the class.

ASSESSMENT
Overall learning outcomes

After the course the student will be able to

  • construct, examine and analyse curves and surfaces in R3.

  • apply mathematical analysis and linear algebra in differential geometry.

  • describe the notion and power of chart invariance.

  • demonstrate in-depth understanding of the relation between manifolds, synthetic differentiability, tangent space, Riemannian metrics and the metric structure of manifolds.

  • demonstrate in-depth understanding of the relation between ODE’s on manifolds and vector fields on manifolds.

  • operate with concepts and ideas from differential geometry in other mathematical contexts.

Prerequisites
Form of examination

Individual oral exam based on a portfolio.

The character limit of the portfolio is 1,200-120,000 characters, including spaces. Examples of written products are exercise responses, talking points for presentations, written feedback, reflections, written assignments. The preparation of the products may be subject to time limits.
The character limits include the cover, table of contents, bibliography, figures and other illustrations, but exclude any appendices.

Time allowed for exam including time used for assessment: 30 minutes.
The assessment is an assessment of the oral examination. The written product(s) is not part of the assessment.

Permitted support and preparation materials for the oral exam: All.

Assessment: 7-point grading scale.
Moderation: Internal co-assessor
Form of Re-examination
Samme som ordinær eksamen / same form as ordinary exam
Type of examination in special cases
Examination and assessment criteria (implemented)

The portfolio consists of a written presentation of the oral presentation which the student gives during the course on a topic assigned by the course organizer.

During the oral examination the student should be able to

  • construct, examine and analyse curves and surfaces in R3.

  • apply mathematical analysis and linear algebra in differential geometry.

  • describe the notion and power of chart invariance.

  • demonstrate in-depth understanding of the relation between manifolds, synthetic differentiability, tangent space.

  • demonstrate in-depth understanding of the relation between ODE’s on manifolds and vector fields on manifolds.

  • operate with concepts and ideas from differential geometry in other mathematical contexts.

The assessment of the oral exam is based on the student’s ability to meet the criteria mentioned above and their ability to

  • clearly present and communicate the scientific content of the course

  • engage in a scientific dialogue and discussion with the assessors

Regarding the use of generative AI at the exam

In this course, generative AI tools (GAI) are allowed in the work on the exam if their use is declared. You must clearly indicate how you have used generative artificial intelligence (GAI). This can, for example, be included as part of a methodology section or as a brief statement at the end of your exam paper or submitted as an appendix to your assignment. This means that you must describe how you have used GAI, for example, for preparatory work on the assignment, to ask questions, search and process information, receive feedback and critique on your text, perform proofreading, or improve language and readability. It is important that you actively consider your choice of tools in this way, as it is part of the entire creation process of the assignment and thus part of your scientific method and academic communication.

The use of any specific text that is GAI-generated requires citation, just like the use of any other sources from which direct quotes are taken.

In the library's guide, you can see more about how to cite AI and how you can declare your use of GAI - find the guide here.

Regular spell check and other language suggestions, as known from Word or other word processing programs, as well as programs for writing minutes and transcription, are allowed in all written exams and do not need to be declared.

Exam code(s)
Exam code(s) : U60169
Last changed 23/10/2025

lecture list:

Show lessons for Subclass: 1 Find calendar (1) PDF for print (1)

Tuesday 09-09-2025 12:15 - 09-09-2025 14:00 in week 37
Differential Geometry
-

Friday 12-09-2025 12:15 - 12-09-2025 14:00 in week 37
Differential Geometry
-

Tuesday 16-09-2025 12:15 - 16-09-2025 14:00 in week 38
Differential Geometry
-

Friday 19-09-2025 12:15 - 19-09-2025 14:00 in week 38
Differential Geometry
-

Tuesday 23-09-2025 12:15 - 23-09-2025 14:00 in week 39
Differential Geometry
-

Friday 26-09-2025 12:15 - 26-09-2025 14:00 in week 39
Differential Geometry
-

Tuesday 30-09-2025 12:15 - 30-09-2025 14:00 in week 40
Differential Geometry
-

Friday 03-10-2025 12:15 - 03-10-2025 14:00 in week 40
Differential Geometry
-

Friday 10-10-2025 12:15 - 10-10-2025 14:00 in week 41
Differential Geometry
-

Tuesday 14-10-2025 12:15 - 14-10-2025 14:00 in week 42
Differential Geometry
-

Friday 17-10-2025 12:15 - 17-10-2025 14:00 in week 42
Differential Geometry
-

Tuesday 21-10-2025 12:15 - 21-10-2025 14:00 in week 43
Differential Geometry
-

Friday 24-10-2025 12:15 - 24-10-2025 14:00 in week 43
Differential Geometry
-

Tuesday 28-10-2025 12:15 - 28-10-2025 14:00 in week 44
Differential Geometry
-

Friday 31-10-2025 12:15 - 31-10-2025 14:00 in week 44
Differential Geometry
-

Tuesday 04-11-2025 12:15 - 04-11-2025 14:00 in week 45
Differential Geometry
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Friday 07-11-2025 12:15 - 07-11-2025 14:00 in week 45
Differential Geometry
-

Tuesday 11-11-2025 12:15 - 11-11-2025 14:00 in week 46
Differential Geometry
-

Friday 14-11-2025 12:15 - 14-11-2025 14:00 in week 46
Differential Geometry
-

Tuesday 18-11-2025 12:15 - 18-11-2025 14:00 in week 47
Differential Geometry
-

Friday 21-11-2025 12:15 - 21-11-2025 14:00 in week 47
Differential Geometry
-

Tuesday 25-11-2025 12:15 - 25-11-2025 14:00 in week 48
Differential Geometry
-

Friday 28-11-2025 12:15 - 28-11-2025 14:00 in week 48
Differential Geometry
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Tuesday 02-12-2025 12:15 - 02-12-2025 14:00 in week 49
Differential Geometry
-

Friday 05-12-2025 12:15 - 05-12-2025 14:00 in week 49
Differential Geometry
-

Monday 05-01-2026 09:00 - 05-01-2026 10:00 in week 02
Differential Geometry
Hand-in of portfolio in Digital Exam, deadline 10:00

Thursday 15-01-2026 08:15 - 15-01-2026 16:00 in week 03
Differential Geometry
Exam

Friday 30-01-2026 09:00 - 30-01-2026 10:00 in week 05
Differential Geometry
Hand-in of portfolio in Digital Exam, deadline 10:00 (reexam)

Friday 20-02-2026 13:00 - 20-02-2026 14:00 in week 08
Differential Geometry
Reexam