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  • 0 posts edited
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  • 42 votes cast
Apr
1
comment Hypothesis for matrix formula
@5xum: My guess is from a series expansion, assuming M positive definite.
Apr
1
asked Hypothesis for matrix formula
Mar
22
accepted Ambiguous definition of a set
Mar
22
comment Ambiguous definition of a set
Okay, nice perspective, indeed there is a non unique relationship between the quantity and its representation. Many thanks.
Mar
22
asked Ambiguous definition of a set
Mar
19
comment Intuition about the semidirect product of groups
Sorry I can't give more details here and now but I advise to look into the Euclidean group as a good motivation for the semi direct product. Translations composed with rotations need for a semi direct product.
Mar
2
accepted Map closed under addition but not multiplication
Feb
19
asked Homomorphism theorem and group product
Feb
15
asked Elementary exercise on cosets
Feb
8
accepted Identifying a function
Feb
8
asked Identifying a function
Nov
29
awarded  Popular Question
Nov
6
asked Map closed under addition but not multiplication
Oct
22
comment Distribution of the intersection between a grid and a circle
Thanks for helping reformulating my problem, but shouldn't be $\lfloor R\rfloor$ in your inequality?
Oct
21
asked Distribution of the intersection between a grid and a circle
Sep
27
asked Looking for interesting problems to solve numerically
Mar
19
comment Proof in ring homomorphism
Thank you, it does make sense.
Mar
19
accepted Proof in ring homomorphism
Mar
19
asked Proof in ring homomorphism
Mar
17
accepted Why are we losing one degree of freedom in this $\chi^2$ variable?