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7,750 reputation
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visits member for 7 months
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Selected questions with my answers(to be updated):

  • How to prove $\left\|\ln\left(e^{iH_1}e^{iH_2}\right)\right\|\leq\left\|H_1\right\|+\left\|H_2\right\|$?
  • Property of partial traces

Interesting unanswered questions(to be updated):

  • The set of critical value of polynomial functions
  • Osgood condition
  • Simple non-closed geodesic.
  • If $S\times\mathbb{R}$ is homeomorphic to $T\times\mathbb{R}$, and $S$ and $T$ are compact, can we conclude that $S$ and $T$ are homeomorphic?

7,750 reputation
bio website visits member for 7 months
323 badges
location seen 13 hours ago
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56 Reviews

suggestions reviews revisions comments badges posts accepts all
May
15
reviewed Close Properties of basic set theory
May
15
reviewed Close Solve a cubic equation?
May
15
reviewed Close A question in Ring theory
May
12
reviewed Close Proof that $\sum_{k=0}^m \binom{m}{k}\frac{1}{k+1} = \frac{2^{m+1}-1}{m+1}$
May
7
reviewed Close under what conditions is f(A ∪B)=f(A) ∪f(B) and f(A∩B)=f(A)∩f(B)?
May
3
reviewed Close Some Algebra 2 help
May
3
reviewed Close Prove that $G$ has an element of order $n$
May
1
reviewed Close Extreme Value theorem properties
May
1
reviewed Close Help with math question please
Apr
29
reviewed Leave Closed derivate in complex analysis
Apr
29
reviewed Close question about complex analysis
Apr
29
reviewed Close Help solvin this problem
Apr
29
reviewed Leave Closed probability problem
Apr
29
reviewed Close confernece interval
Apr
28
reviewed Close If 3x-1 is a factor of p(x), which of the following must have a value of 0?
Apr
28
reviewed Close a similar theory to Ramsey theory, with 3 attributes
Apr
28
reviewed Leave Closed Find the least possible value for $n$
Apr
28
reviewed Leave Closed Find all Idempotent elements.
Apr
28
reviewed Close Prove the intersection of a Sylow $p$-subgroup and a subgroup is the unique Sylow $p$-subgroup
Apr
28
reviewed Close Definite integral with no closed form antiderivative
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