coboundary
1. n coboundary
n上边缘
2. cohomology coboundary homomorphism
上同调上边缘同态
3. coboundary homomorphism
上边缘同态
4. coboundary complex
上边缘复形
5. coboundary operator
上边缘运算子
6. homotopy coboundary operation
同伦上边缘运算