最終更新日：2025/11/21
(mathematics) A number describing the degree of collaboration between a mathematician and Paul Erdős, defined such that a mathematician who has written a paper with Erdős has an Erdős number of 1, a mathematician who has written a paper with somebody having an Erdős number of 1 has an Erdős number of two, and so on.
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Erdős number
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Erdős number
名詞
(mathematics)
A
number
describing
the
degree
of
collaboration
between
a
mathematician
and
Paul
Erdős,
defined
such
that
a
mathematician
who
has
written
a
paper
with
Erdős
has
an
Erdős
number
of
1,
a
mathematician
who
has
written
a
paper
with
somebody
having
an
Erdős
number
of
1
has
an
Erdős
number
of
two,
and
so
on.
日本語の意味
エルデシュ数: 数学者の間で、Paul Erdősとの共著による連鎖的な協力関係を示す指標。具体的には、Erdősとの直接共著で1、直接共著者と共著で2、というように数値が定義される。
意味（1）
(mathematics)
A
number
describing
the
degree
of
collaboration
between
a
mathematician
and
Paul
Erdős,
defined
such
that
a
mathematician
who
has
written
a
paper
with
Erdős
has
an
Erdős
number
of
1,
a
mathematician
who
has
written
a
paper
with
somebody
having
an
Erdős
number
of
1
has
an
Erdős
number
of
two,
and
so
on.
（ plural ）
