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Apr
7
awarded  Nice Question
Mar
24
accepted What does algebraic number look like locally?
Mar
24
comment What does algebraic number look like locally?
Can I ask if $\alpha$ could be in an extension of $\mathbb{Q}_p$?
Mar
24
revised What does algebraic number look like locally?
added 5 characters in body
Mar
24
asked What does algebraic number look like locally?
Mar
8
asked Principal ideals and units
Dec
20
accepted smooth vector field on the boundary of unit ball
Dec
17
comment smooth vector field on the boundary of unit ball
Can I ask how you tell it is pointing outwards? What does that dot product mean?
Dec
17
revised smooth vector field on the boundary of unit ball
added 2 characters in body
Dec
17
asked smooth vector field on the boundary of unit ball
Dec
2
awarded  Popular Question
Oct
2
awarded  Yearling
Mar
18
asked Cycliness of finite subgroup of the multiplicative group of a field
Mar
17
awarded  Notable Question
Mar
16
comment Why is $(3,1+\sqrt{-5})^2=(2-\sqrt{-5})$ in $\mathbb{Z}[\sqrt{-5}]$
Thanks for the higher viewpoint! Can I ask how you know $P$ is of index 3 in the ring of integers? The only relevant thing I know is the index of a principal ideal in the ring of integers is equal to the norm of the generator over $\mathbb{Q}$.
Mar
16
asked Tangent space of tangent vector
Mar
16
accepted Why is $(3,1+\sqrt{-5})^2=(2-\sqrt{-5})$ in $\mathbb{Z}[\sqrt{-5}]$
Mar
15
asked Why is $(3,1+\sqrt{-5})^2=(2-\sqrt{-5})$ in $\mathbb{Z}[\sqrt{-5}]$
Mar
14
comment Concrete example of zero section
Could you say something about my question on zero vector in tangent space?
Mar
14
asked Concrete example of zero section