##### 楔积 - 楔积 - **楔积**是[[外代数]]中的一种[[运算|二元运算]], 用于构造[[交错张量]] - $\omega_1 \wedge \omega_2 = - \omega_2 \wedge \omega_1$ - $(\omega_1 \wedge \omega_2) \wedge \omega_3 = \omega_1 \wedge (\omega_2 \wedge \omega_3)$ - $\omega \wedge \omega = 0$