QUESTIONS

1. Is there a ring homomorphism from R[[X]] onto R[X] ? (2020).

2. A 2x3 association analogue (2021).

3. A 3x3 zero-square matrix which has not rank 1 (2021).

4. A special solution to a linear Diophantine equation with 4 variables (2022).

5. Regular UU rings are reduced (2022).