blog:2023-02-25
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| blog:2023-02-25 [2023/02/26 16:30] – pzhou | blog:2023-02-25 [2023/06/25 15:53] (current) – external edit 127.0.0.1 | ||
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| Finally, let's say what this means on the equivariant A-side. $S$ is the shift of the equivariant positiion to the right. so indeed, on the constructible sheaf side, it worked. Now, how to get a morphism? Well, there is only one morphism in the base, between two lines, and there might be more in the fiber. | Finally, let's say what this means on the equivariant A-side. $S$ is the shift of the equivariant positiion to the right. so indeed, on the constructible sheaf side, it worked. Now, how to get a morphism? Well, there is only one morphism in the base, between two lines, and there might be more in the fiber. | ||
| - | And one can | + | In general, for more general GIT quotient by $(\C^*)^n$, what's the story? |
| + | ===== Universal Window? ====== | ||
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| + | OK, let's consider this. On the B-side, we have $\C^N$. The structure sheaf is mirror to the totally positive real line.(when we do the actual mapping, need to backward wrap a tiny little bit.) | ||
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| + | What's its shadow on the base $((\C^*)^k)^\vee$? | ||
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| + | Consider hte equation for $1+x+y+t xy = 0$, where $t$ is the parameter, when is the equation singular? it is at $t=1$. darn it. why it has to pass through the critical point? | ||
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| + | Consider the case of $(1,1,-2)$, window size is 2. | ||
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| + | ===== B-side Unstable Loci ===== | ||
| + | OK, what we do? In the toric case, we pick a character on the B-side GIT quotient, hence a 1PS on the A-side base, in particular, a loop, an element in HH. or projective HH. We do the shift, look for the morphism in the wrapped category | ||
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| + | ===== Non CY case? ===== | ||
blog/2023-02-25.1677429021.txt.gz · Last modified: 2023/06/25 15:53 (external edit)