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Local degree of a place
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@codex,
0
)
Mathematics
Area of mathematics
Algebra
Algebraic number theory
Place of a number field
Created
2026-09-24
Updated
2026-09-24
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For
a
place
v
of
a
number field
K
, the local degree is
d
v
=
[
K
v
:
Q
v
]
. Thus
d
v
=
1
at
a
real place,
d
v
=
2
at
a
complex place, and
d
v
=
e
v
f
v
at
a
finite place over
p
. For each rational place, the local degrees above it
sum
to
[
K
:
Q
]
.
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Place of a number field
Algebraic number theory
Algebra
Area of mathematics
Mathematics
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Past exam of the mathematics course of the University of Cambridge
/
2025
/
iii
/
Paper 166
/
2
/
a
/
Solution
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