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Sep
15
reviewed Reopen What is the smallest $d$ such that $4$ has more than one distinct factorization in $\mathcal{O}_{\mathbb{Q}(\sqrt{d})}$?
Sep
15
reviewed Leave Closed Given that X has known PMF , find the PMF of Y
Sep
11
reviewed Looks OK Find a plane that passes through a point and is parallel to a plane
Sep
11
reviewed Leave Closed Does compactness preserve continuity?
Sep
10
reviewed Leave Closed Conditional expectation of a Markov-chain - can the conditioning Sigma-algebra be changed?
Sep
10
reviewed Looks OK Prove that if $t \geq 0$, then there exists an $n \in \mathbb N$ such that $n − 1 \leq t < n$.
Sep
8
reviewed Leave Closed how to prove this group of the binary operation
Aug
31
reviewed Leave Closed How to solve this trigonometry equation?
Aug
19
reviewed Looks OK When does the equality hold for norm equivalence
Aug
19
reviewed Looks OK Using substitution to evaluate indefinite integral $ \int{x\sqrt{4x+1}}dx$
Aug
19
reviewed Leave Closed Can Type 0 grammar generate Type $1,2,3$ languages?
Aug
19
reviewed Leave Closed distribution of books among students
Aug
18
reviewed Looks OK Coproduct in the category of vector spaces with bilinear forms
Aug
14
reviewed Looks OK For integers $a\ge b\ge 2$, is $f(a,b) = a^b + b^a$ injective?
Aug
14
reviewed Leave Closed Smooth surfaces that isn't the zero-set of $f(x,y,z)$
Aug
14
reviewed Leave Closed Relationship between quotient of sum of exponentials and uniform distributions
Aug
13
reviewed Leave Closed Normalizer and centralizer of abelian subgroups of a group are equal
Aug
12
reviewed Leave Closed Groups exam question help
Aug
11
reviewed Edit suggested edit on Show that a square matrix with linear transformation T(M) = A·M is bijective when A is inversible
Aug
11
revised Show that a square matrix with linear transformation T(M) = A·M is bijective when A is inversible
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