About associate in abstract algebra [closed] The 2019 Stack Overflow Developer Survey Results Are InHelp on abstract algebra proof?Abstract Algebra (Ring Homomorphisms and Ideals)Abstract Algebra- IdealsAbstract Algebra .. HomomorphismAbstract Algebra 1 about permutationAbstract Algebra: Showing IsomorphismThe element that is an associate of everything.Show that this field is finite and count its elementsAbstract algebra: Associate elements of irreducible and prime elementsAssociate elements in non-integral domains.
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About associate in abstract algebra [closed]
The 2019 Stack Overflow Developer Survey Results Are InHelp on abstract algebra proof?Abstract Algebra (Ring Homomorphisms and Ideals)Abstract Algebra- IdealsAbstract Algebra .. HomomorphismAbstract Algebra 1 about permutationAbstract Algebra: Showing IsomorphismThe element that is an associate of everything.Show that this field is finite and count its elementsAbstract algebra: Associate elements of irreducible and prime elementsAssociate elements in non-integral domains.
$begingroup$
In $Bbb Z[sqrt-7]$, show that $$N(6+2 sqrt-7)=N(1+3 sqrt-7)$$
but $6+2 sqrt-7$ and $1+3 sqrt-7$ are not associates
I don't know how to solve this. Help me to solve this!
abstract-algebra ring-theory
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closed as off-topic by Arturo Magidin, Derek Holt, verret, YiFan, Shailesh Mar 25 at 0:24
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Arturo Magidin, Derek Holt, verret, YiFan, Shailesh
add a comment |
$begingroup$
In $Bbb Z[sqrt-7]$, show that $$N(6+2 sqrt-7)=N(1+3 sqrt-7)$$
but $6+2 sqrt-7$ and $1+3 sqrt-7$ are not associates
I don't know how to solve this. Help me to solve this!
abstract-algebra ring-theory
$endgroup$
closed as off-topic by Arturo Magidin, Derek Holt, verret, YiFan, Shailesh Mar 25 at 0:24
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Arturo Magidin, Derek Holt, verret, YiFan, Shailesh
$begingroup$
means they differ by a unit, I believe
$endgroup$
– Sean Nemetz
Mar 24 at 5:40
$begingroup$
Please use MathJax instead of posting an image.
$endgroup$
– Toby Mak
Mar 24 at 5:53
1
$begingroup$
@Shivani Shah $N(a+bsqrtd)=a^2-db^2.$ Show us your trying.
$endgroup$
– Michael Rozenberg
Mar 24 at 6:21
add a comment |
$begingroup$
In $Bbb Z[sqrt-7]$, show that $$N(6+2 sqrt-7)=N(1+3 sqrt-7)$$
but $6+2 sqrt-7$ and $1+3 sqrt-7$ are not associates
I don't know how to solve this. Help me to solve this!
abstract-algebra ring-theory
$endgroup$
In $Bbb Z[sqrt-7]$, show that $$N(6+2 sqrt-7)=N(1+3 sqrt-7)$$
but $6+2 sqrt-7$ and $1+3 sqrt-7$ are not associates
I don't know how to solve this. Help me to solve this!
abstract-algebra ring-theory
abstract-algebra ring-theory
edited Mar 24 at 6:04
Chinnapparaj R
6,34521029
6,34521029
asked Mar 24 at 5:37
Shivani ShahShivani Shah
6
6
closed as off-topic by Arturo Magidin, Derek Holt, verret, YiFan, Shailesh Mar 25 at 0:24
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Arturo Magidin, Derek Holt, verret, YiFan, Shailesh
closed as off-topic by Arturo Magidin, Derek Holt, verret, YiFan, Shailesh Mar 25 at 0:24
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Arturo Magidin, Derek Holt, verret, YiFan, Shailesh
$begingroup$
means they differ by a unit, I believe
$endgroup$
– Sean Nemetz
Mar 24 at 5:40
$begingroup$
Please use MathJax instead of posting an image.
$endgroup$
– Toby Mak
Mar 24 at 5:53
1
$begingroup$
@Shivani Shah $N(a+bsqrtd)=a^2-db^2.$ Show us your trying.
$endgroup$
– Michael Rozenberg
Mar 24 at 6:21
add a comment |
$begingroup$
means they differ by a unit, I believe
$endgroup$
– Sean Nemetz
Mar 24 at 5:40
$begingroup$
Please use MathJax instead of posting an image.
$endgroup$
– Toby Mak
Mar 24 at 5:53
1
$begingroup$
@Shivani Shah $N(a+bsqrtd)=a^2-db^2.$ Show us your trying.
$endgroup$
– Michael Rozenberg
Mar 24 at 6:21
$begingroup$
means they differ by a unit, I believe
$endgroup$
– Sean Nemetz
Mar 24 at 5:40
$begingroup$
means they differ by a unit, I believe
$endgroup$
– Sean Nemetz
Mar 24 at 5:40
$begingroup$
Please use MathJax instead of posting an image.
$endgroup$
– Toby Mak
Mar 24 at 5:53
$begingroup$
Please use MathJax instead of posting an image.
$endgroup$
– Toby Mak
Mar 24 at 5:53
1
1
$begingroup$
@Shivani Shah $N(a+bsqrtd)=a^2-db^2.$ Show us your trying.
$endgroup$
– Michael Rozenberg
Mar 24 at 6:21
$begingroup$
@Shivani Shah $N(a+bsqrtd)=a^2-db^2.$ Show us your trying.
$endgroup$
– Michael Rozenberg
Mar 24 at 6:21
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
Hints:
- $N(a+b sqrt-7)=vert a^2+7b^2 vert$
- If both are associates, then $$6+2 sqrt-7=u cdot[ 1+3 sqrt-7]$$ where $u$ is a unit in $Bbb Z[sqrt-7]$. But the only possible units in $Bbb Z[sqrt-7]$ are........? and so......?
$endgroup$
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Hints:
- $N(a+b sqrt-7)=vert a^2+7b^2 vert$
- If both are associates, then $$6+2 sqrt-7=u cdot[ 1+3 sqrt-7]$$ where $u$ is a unit in $Bbb Z[sqrt-7]$. But the only possible units in $Bbb Z[sqrt-7]$ are........? and so......?
$endgroup$
add a comment |
$begingroup$
Hints:
- $N(a+b sqrt-7)=vert a^2+7b^2 vert$
- If both are associates, then $$6+2 sqrt-7=u cdot[ 1+3 sqrt-7]$$ where $u$ is a unit in $Bbb Z[sqrt-7]$. But the only possible units in $Bbb Z[sqrt-7]$ are........? and so......?
$endgroup$
add a comment |
$begingroup$
Hints:
- $N(a+b sqrt-7)=vert a^2+7b^2 vert$
- If both are associates, then $$6+2 sqrt-7=u cdot[ 1+3 sqrt-7]$$ where $u$ is a unit in $Bbb Z[sqrt-7]$. But the only possible units in $Bbb Z[sqrt-7]$ are........? and so......?
$endgroup$
Hints:
- $N(a+b sqrt-7)=vert a^2+7b^2 vert$
- If both are associates, then $$6+2 sqrt-7=u cdot[ 1+3 sqrt-7]$$ where $u$ is a unit in $Bbb Z[sqrt-7]$. But the only possible units in $Bbb Z[sqrt-7]$ are........? and so......?
answered Mar 24 at 6:23
Chinnapparaj RChinnapparaj R
6,34521029
6,34521029
add a comment |
add a comment |
$begingroup$
means they differ by a unit, I believe
$endgroup$
– Sean Nemetz
Mar 24 at 5:40
$begingroup$
Please use MathJax instead of posting an image.
$endgroup$
– Toby Mak
Mar 24 at 5:53
1
$begingroup$
@Shivani Shah $N(a+bsqrtd)=a^2-db^2.$ Show us your trying.
$endgroup$
– Michael Rozenberg
Mar 24 at 6:21