Graduate Student Singularity Theory: Difference between revisions
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It is a weekly seminar by graduate students. Anyone is welcome. | It is a weekly seminar by graduate students. Anyone is welcome. | ||
If you would like to present a topic, please contact Tommy Wong. | If you would like to present a topic, please contact Tommy Wong. | ||
All seminars are on Tuesdays | All seminars are on eitehr Tuesdays or Thursdays at 3:55pm in room 203VV, which is reserved until 5:30pm for further discussions. | ||
| Line 12: | Line 12: | ||
|- | |- | ||
|Sept. 18 | |Sept. 18 | ||
|KaiHo Wong | |KaiHo Wong (Tue) | ||
|Organization and ''Milnor fibration and Milnor Fiber'' | |Organization and ''Milnor fibration and Milnor Fiber'' | ||
|- | |- | ||
|Sept. 25 | |Sept. 25 | ||
|KaiHo Wong | |KaiHo Wong (Tue) | ||
|''Algebraic links and exotic spheres'' | |''Algebraic links and exotic spheres'' | ||
|- | |- | ||
| Line 27: | Line 27: | ||
|''Sheaves and Hypercohomology'' | |''Sheaves and Hypercohomology'' | ||
|- | |- | ||
|Oct. | |Oct. 18 (Thu) | ||
| | |Jeff Poskin | ||
|'' | |''Toric Varieties II'' | ||
|- | |- | ||
| | |Nov. 1 (Thu) | ||
| | |kaiHo Wong | ||
|'' | |''Euler characteristics and cohomology of hypersurfaces (complete intersection)'' | ||
|- | |- | ||
|Nov. 6 | |Nov. 6 | ||
Revision as of 16:01, 14 October 2012
It is a weekly seminar by graduate students. Anyone is welcome. If you would like to present a topic, please contact Tommy Wong. All seminars are on eitehr Tuesdays or Thursdays at 3:55pm in room 203VV, which is reserved until 5:30pm for further discussions.
Fall 2012
| date | speaker | title |
|---|---|---|
| Sept. 18 | KaiHo Wong (Tue) | Organization and Milnor fibration and Milnor Fiber |
| Sept. 25 | KaiHo Wong (Tue) | Algebraic links and exotic spheres |
| Oct. 4 (Thu) | Yun Su (Suky) | Alexander polynomial of complex algebraic curve (Note the different day but same time and location) |
| Oct. 11 (Thu) | Yongqiang Liu | Sheaves and Hypercohomology |
| Oct. 18 (Thu) | Jeff Poskin | Toric Varieties II |
| Nov. 1 (Thu) | kaiHo Wong | Euler characteristics and cohomology of hypersurfaces (complete intersection) |
| Nov. 6 | speaker | title |
| Nov. 13 | speaker | title |
| Nov. 27 | speaker | title |
| Dec. 4 | speaker | title |
| Dec. 11 | speaker | title |
Abstracts
Thu, 10/4: Suky
Alexander polynomial of complex algebraic curve
I will extend the definition of Alexander polynomial in knot theory to an complex algebraic curve. From the definition, it is clear that Alexander polynomial is an topological invariant for curves. I will explain how the topology of a curve control its Alexander polynomial, in terms of the factors. Calculations of some examples will be provided.