N***l
发帖数: 52 | 1 一下子脑袋浆住了
using the Z_2 coefficients, what are the cohomology groups of
Torus, RP2 and Klein bottle? | r***l
发帖数: 36 | 2 Torus, H^0 = Z_2, H^1 = Z_2 * Z_2, H^2 = Z_2
RP2, Z_2, Z_2, Z_2
Klein bottle, Z_2, Z_2 * Z_2, Z_2
【在 N***l 的大作中提到】
: 一下子脑袋浆住了
: using the Z_2 coefficients, what are the cohomology groups of
: Torus, RP2 and Klein bottle?
| N***l
发帖数: 52 | 3 figured out, hehe, thanks a lot.
【在 r***l 的大作中提到】
: Torus, H^0 = Z_2, H^1 = Z_2 * Z_2, H^2 = Z_2
: RP2, Z_2, Z_2, Z_2
: Klein bottle, Z_2, Z_2 * Z_2, Z_2
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