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Age: 30
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Top Questions
18
votes
A finite ring is a field if its units $\cup\ \{0\}$ comprise a field of characteristic $\ne 2$
abstract-algebra
ring-theory
asked Apr 2 '11 at 20:24
math.stackexchange.com
7
votes
the localization of a ring is an integral domain iff the annihilators of zero divisors are comaximal ideals
abstract-algebra
asked Apr 13 '11 at 6:19
math.stackexchange.com
Top Answers
10
Can a Gaussian integer matrix have an inverse with Gaussian integer entries?
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10
How do the sets $\emptyset\times B,\ A\ \times \emptyset, \ \emptyset \times \emptyset $ look like?
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7
product of two ideals
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6
Why is $L(\mathbb{R})$ just the set of multiplication maps?
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6
Is the determinant of a matrix lower when all its elements are lower?
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6
Is this $\left|\left(\frac{a}{b}\right)^n-\left(\frac{a}{b}\right)^{n-1}\right|$ bounded?
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5
How are polynomials mod m reduced?
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