Let \(R=(\mathbb {Z}/3\mathbb {Z})[x,y]\) and let \(I=(x,2y)\). Compute the number of elements in \(\operatorname {Ext}^i(R/I,R)\) for each \(i\ge 0\).
Question
Math 6310 • Algebra
Spring 2023 • Question 3
Question
Spring 2023 • Question 3
Let \(R=(\mathbb {Z}/3\mathbb {Z})[x,y]\) and let \(I=(x,2y)\). Compute the number of elements in \(\operatorname {Ext}^i(R/I,R)\) for each \(i\ge 0\).