#  MATH230A: Differential Geometry 

 





 Semester:   Fall 

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 Year offered:  2022 

 

 

 

**Outside Link by Selena Zhang and Aayush Gupta <https://www.coursetexts.org/differential-geometry-math230a>**

\[IMPORTANT\] The syllabus is updated.

Time: 10:30-11:45 pm, Tuesday-Thursday

Place: Science Center 221

Instructor: Fan Ye, Science Center 505H, <fanye@math.harvard.edu>

Course Assistant: Keeley Hoek, Science Center 333G, <khoek@math.harvard.edu>

Office Hours:

Fan Ye, SC 505H, Tuesday 1:30-3:20 pm.

Keeley Hoek, SC 333G, Thursday 2:00-3:00 pm

Main References: Differential Geometry: Bundles, Connections, Metrics and Curvature, Chapters 1-16, by Clifford H. Taubes

Other suggested references:

- An Introduction to Differentiable Manifolds and Riemannian Geometry, William M. Boothby: [https://books.google.com/books/about/An\_Introduction\_to\_Differentiable\_…](https://books.google.com/books/about/An_Introduction_to_Differentiable_Manifo.html?id=oWLJ6zaSwyIC)
- Fundations of differentiable manifolds and Lie groups, Frank W. Warner: <https://link.springer.com/book/10.1007/978-1-4757-1799-0>
- Differential forms in algebraic geometry, Raoul Bott and Loring W. Tu: <https://link.springer.com/book/10.1007/978-1-4757-3951-0>
- Vector bundles &amp; K-theory, Allen Hatcher <https://pi.math.cornell.edu/~hatcher/VBKT/VBpage.html>

Prerequisites: An undergraduate-level understanding of manifolds. An undergraduate may look at the first chapter of Cliff's book for preparation.

Tentative Course Outline: Notes will be posted on the course page after the classes.

- Weeks 1-2 (Sept. 1-8): smooth manifolds and Lie groups \[Taubes, Chapters 1-2\]
- Weeks 3-4 (Sept. 13-22): vector bundles \[Taubes, Chapters 3-6\]
- Weeks 5-6 (Sept. 27-Oct. 6): metrics and geodesics \[Taubes, Chapters 7-9\]
- Weeks 7-8 (Oct. 11-20): de Rham cohomology and covariant derivative \[Taubes, Chapters 12\]
- Weeks 9-10 (Oct. 25-Nov. 3): Levi-Civita connections and Riemann curvature tensors \[Taubes, Chapters 15, 14.1\]
- Weeks 11-13 (Nov. 8-22): characteristic classes and principal bundles \[Taubes, Chapters 14, 10-11\]
- Week 14 (Nov. 29-Dec. 1): Yang-Mills equation and applications.



 

 

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 Attachments- [  picture\_as\_pdf  syllabus\_math230a\_new2.pdf ](/sites/g/files/omnuum10216/files/fanye/files/syllabus_math230a_new2.pdf)
- [  picture\_as\_pdf  math230a\_notes\_week1-2.pdf ](/sites/g/files/omnuum10216/files/fanye/files/math230a_notes_week1-2.pdf)
- [  picture\_as\_pdf  assignment\_1.pdf ](/sites/g/files/omnuum10216/files/fanye/files/assignment_1.pdf)
- [  picture\_as\_pdf  math\_230a\_notes\_week3-4.pdf ](/sites/g/files/omnuum10216/files/fanye/files/math_230a_notes_week3-4.pdf)
- [  picture\_as\_pdf  assignment\_2.pdf ](/sites/g/files/omnuum10216/files/fanye/files/assignment_2.pdf)
- [  picture\_as\_pdf  math\_230a\_notes\_week5-6.pdf ](/sites/g/files/omnuum10216/files/fanye/files/math_230a_notes_week5-6.pdf)
- [  picture\_as\_pdf  assignment\_3.pdf ](/sites/g/files/omnuum10216/files/fanye/files/assignment_3.pdf)
- [  picture\_as\_pdf  math\_230a\_notes\_week7-8\_new.pdf ](/sites/g/files/omnuum10216/files/fanye/files/math_230a_notes_week7-8_new.pdf)
- [  picture\_as\_pdf  assignment\_4.pdf ](/sites/g/files/omnuum10216/files/fanye/files/assignment_4.pdf)
- [  picture\_as\_pdf  math\_230a\_notes\_week9-10\_new.pdf ](/sites/g/files/omnuum10216/files/fanye/files/math_230a_notes_week9-10_new.pdf)
- [  picture\_as\_pdf  assignment\_5\_update.pdf ](/sites/g/files/omnuum10216/files/fanye/files/assignment_5_update.pdf)
- [  picture\_as\_pdf  math230a\_oct20.pdf ](/sites/g/files/omnuum10216/files/fanye/files/math230a_oct20.pdf)
- [  picture\_as\_pdf  math230a\_oct25.pdf ](/sites/g/files/omnuum10216/files/fanye/files/math230a_oct25.pdf)
- [  picture\_as\_pdf  math230a\_oct27.pdf ](/sites/g/files/omnuum10216/files/fanye/files/math230a_oct27.pdf)
- [  picture\_as\_pdf  math\_230a\_notes\_week11-14\_new.pdf ](/sites/g/files/omnuum10216/files/fanye/files/math_230a_notes_week11-14_new.pdf)
- [  picture\_as\_pdf  assignment\_6.pdf ](/sites/g/files/omnuum10216/files/fanye/files/assignment_6.pdf)
- [  picture\_as\_pdf  final\_exam.pdf ](/sites/g/files/omnuum10216/files/fanye/files/final_exam.pdf)
 
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