International
Electrotechnical
Commission
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Area
Physics for electrotechnology
/ Relativistic physics for electrotechnology
IEV ref
113-07-60
Symbol
g
μ
ν
g
μ
ν
en
metric tensor
symmetric
tensor of the second order
defining the geometric properties of
space-time
by the relation
d
s
2
=
∑
μ
,
ν
g
μ
ν
d
x
μ
d
x
ν
, where
d
s
2
MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm 0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9ad baGaaiGaciGacmaaceGaaiGacaabaaGcbaGaciizaiaadohadaahaa Wcbeqaaiaaikdaaaaaaa@3671@
is a
squared interval
and
d
x
μ
MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm 0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9ad baGaaiGabaqaamaaceGaaiGacmabaaGcbaGaciizaiaadIhadaahaa WcbeqaaiaajY7aaaaaaa@3667@
,
d
x
ν
MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm 0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9ad baGaaiGabaqaamaaceGaaiGacmabaaGcbaGaaiizaiaadIhadaahaa Wcbeqaaiaaj27aaaaaaa@3666@
are components of a quasi-infinitesimal
displacement four-vector
fr
tenseur métrique
, m
tenseur du deuxième ordre
symétrique qui définit les propriétés géométriques de l’
espace-temps
par la relation
d
s
2
=
∑
μ
,
ν
g
μ
ν
d
x
μ
d
x
ν
, où
d
s
2
MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm 0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9ad baGaaiGaciGacmaaceGaaiGacaabaaGcbaGaciizaiaadohadaahaa Wcbeqaaiaaikdaaaaaaa@3671@
est un
carré d’intervalle d’espace-temps
et
d
x
μ
MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm 0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9ad baGaaiGabaqaamaaceGaaiGacmabaaGcbaGaciizaiaadIhadaahaa WcbeqaaiaajY7aaaaaaa@3667@
,
d
x
ν
MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm 0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9ad baGaaiGabaqaamaaceGaaiGacmabaaGcbaGaaiizaiaadIhadaahaa Wcbeqaaiaaj27aaaaaaa@3666@
sont les composantes d’un
quadrivecteur déplacement
quasi infinitésimal
ar
موتر مترى
cs
metrický tenzor
de
metrischer Tensor, m
ja
計量テンソル
pl
tensor metryczny, m
Publication date:
2022-06
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