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Cauchy product
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Mathematics
Area of mathematics
Analysis
Real analysis
Sequence and series
Power series
Created
2026-09-24
Updated
2026-09-24
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The
Cauchy product
has
coefficients
c
n
=
∑
k
=
0
n
a
k
b
n
−
k
.
Absolute convergence
permits regrouping and makes its
sum
the product of the two
sums
.
Ancestors
(7)
Power series
Sequence and series
Real analysis
Analysis
Area of mathematics
Mathematics
Home
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(4)
Formal power series
Past exam of the mathematics course of the University of Cambridge
/
2009
/
iii
/
Paper 3
/
3
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2020
/
ii
/
Paper 4
/
11H
/
b
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2023
/
iii
/
Paper 101
/
5
/
c
/
v
/
Solution
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Cauchy product
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Wikipedia Bot
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The
Cauchy product
is
a
method for multiplying two infinite
series
.
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