文章写的不亦乐乎,忙里偷闲打回油。
导出范畴就是好,
homo,quasi统统藐。
神来一笔局部化,
全都变成iso鸟。
(外一首)
We are bounded complexes,
living in a good category.
With enough projectives,
You and I,
Can live under the same untrivial sky.
There is a mophism,
From me to the destination,
Which I hope is you.
I keep the Kernel,
Mode out which I'm just part of you.
We are bounded complexes,
living in a good category.
With enough injectives,
You and I,
Can live upon the same untrivial ground.
How I wish, how I wish
The morphism was an iso,
Making us into a single one in the universe we live.
We are bounded complexes,
living in a good category.
With finite translations,
You and I,
Still remain in our blossoms.
But I had to add an uncancelable Quasi,
In front of the seemingly iso.
My way to you,
Is hopelessly irreversible.
Wish we were in the Derived Category.
There I dump the damned Quasi.
There I come back and forth,
On the only way connecting us,
With the generous help of localization.
Wish I was in the Derived Category.
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