Finite ring zero divisor/multiplicative inverse
116526
Finite ring has only zero divisors and units
114254
Zero divisors in $A[x_1,x_2,\dots,x_r]$
77198
Showing that the characteristic of a commutative ring R without zero divisors is 0 or prime
87289
Find the multiplicative inverses of all the elements in $\Bbb Z_{16}^\times$
49121
Factorizing a polynomial $f$ in $A[x]$ (with $A$ commutative), where $f$ has a zero in its field of fractions
75351
How to find inverse Modulo?
99815
Dividing versus multiplying by inverse in modular arithmetic
117777
What are the zero divisors of $C[0,1]$?
126331
Associative ring with identity, inverses, divisors of zero and Artinianity
1425
The Chinese Remainder Theorem for Rings.
18066
Prove that any non-zero-divisor of a finite dimensional algebra has an inverse
157863
A finite pseudo-ring such that $ab^2=b$ for some $(a,b)\in A$
20613
Units (invertibles) of polynomial rings over a field
1141
Existence of totally ordered ring with zero divisors
71788
Prove existence of multiplicative inverse modulo p when p is prime
42332
Existence of multiplicative inverse in field $\mathbb{Q}(\sqrt{d})$
157585
Structure theorem of finite rings