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Topic review - Calculating Euler characteristics |
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Re: Calculating Euler characteristics |
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fix with git commit 29f72ad8f1379c65671fb9809ace7ac76fa0cd20 see https://www.singular.uni-kl.de:8002/tra ... a0cd20/git
fix with git commit 29f72ad8f1379c65671fb9809ace7ac76fa0cd20 see https://www.singular.uni-kl.de:8002/trac/changeset/29f72ad8f1379c65671fb9809ace7ac76fa0cd20/git
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Posted: Thu Oct 10, 2019 11:01 am |
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Re: Calculating Euler characteristics |
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So I ended up contacting the person who wrote the chern.lib library and they have corrected the code, which should be updated as well.
So I ended up contacting the person who wrote the chern.lib library and they have corrected the code, which should be updated as well.
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Posted: Tue Oct 01, 2019 1:03 pm |
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Calculating Euler characteristics |
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Hello, I am trying to use Singular to calculate Euler characteristics of some affine varieties over the complex numbers. I did a few tests using the EulerAff command and am getting strange results. For example I tried the following (and various similar alterations like changing the field to Q or R, changing the floating point number, adding more variables ...):
ring r = (complex,100,j),(x,y,z),dp; ideal I = x; EulerAff(I);
This gives the result 2. But this should be calculating the Euler characteristic of the complex plane and so should be 1. Does anybody know what is going on here/how I can correct this issue?
Hello, I am trying to use Singular to calculate Euler characteristics of some affine varieties over the complex numbers. I did a few tests using the EulerAff command and am getting strange results. For example I tried the following (and various similar alterations like changing the field to Q or R, changing the floating point number, adding more variables ...):
ring r = (complex,100,j),(x,y,z),dp; ideal I = x; EulerAff(I);
This gives the result 2. But this should be calculating the Euler characteristic of the complex plane and so should be 1. Does anybody know what is going on here/how I can correct this issue?
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Posted: Wed Sep 25, 2019 12:54 pm |
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It is currently Fri May 13, 2022 10:55 am
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