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Mar
23
awarded  Good Question
Mar
20
asked What is an evaluation operator and what is its use?
Jan
29
accepted Questions regarding the complex logarithm and complex integration
Jan
28
comment Questions regarding the complex logarithm and complex integration
@rlgordonma: Yes, I do. I fixed the typo.
Jan
28
revised Questions regarding the complex logarithm and complex integration
edited body
Jan
28
asked Questions regarding the complex logarithm and complex integration
Jan
24
accepted For linear $A: V \to V$ strictly positive definite, does there exist linear $B: V \to V$ strictly positive definite such that $e^B = A$?
Jan
24
asked For linear $A: V \to V$ strictly positive definite, does there exist linear $B: V \to V$ strictly positive definite such that $e^B = A$?
Jan
16
awarded  Citizen Patrol
Dec
10
awarded  Popular Question
Dec
6
comment $U \subset \mathbb{C}$ open, how do I construct $f$ holomorphic, such that there is no continuation of $f$ on any neighbourhood of $z \in \partial U$?
@LukasGeyer: I was not aware of that. I thought since the geometric series diverges on the boundary of its convergence radius, it can't be analytically continued. Then now I am even more helpless than I was before.
Dec
6
revised $U \subset \mathbb{C}$ open, how do I construct $f$ holomorphic, such that there is no continuation of $f$ on any neighbourhood of $z \in \partial U$?
deleted 4 characters in body
Dec
6
asked $U \subset \mathbb{C}$ open, how do I construct $f$ holomorphic, such that there is no continuation of $f$ on any neighbourhood of $z \in \partial U$?
Dec
1
accepted Is there a vector space that cannot be an inner product space?
Nov
30
comment Is there a vector space that cannot be an inner product space?
I'm sorry, in all lectures I have attended so far, the inner product is positive by definition, which is why I did not specify it.
Nov
29
awarded  Custodian
Nov
29
reviewed Reject Is there a vector space that cannot be an inner product space?
Nov
29
comment Is there a vector space that cannot be an inner product space?
I'm not sure, but can one not just use the well-ordering theorem?
Nov
29
asked Is there a vector space that cannot be an inner product space?
Nov
21
awarded  Yearling