I What is the Meaning of δ in δΓ?

[AleksanderPhy]

Hello I have seen this symbol in many equations it looks like this:δΓ. I know that Γ means (that is Cristoffel symbol) but I don't know what δ means. Does anybody know?

 

[Niladri Dan]

Differential of a path function is δ...Differential of a state function is d...

 

[Quantum321]

Hello I have seen this symbol in many equations it looks like this:δΓ. I know that Γ means (that is Cristoffel symbol) but I don't know what δ means. Does anybody know?

[1] " In mathematics, the Kronecker delta (named after Leopold Kronecker) is a function of two variables, usually just positive integers. The function is 1 if the variables are equal, and 0 otherwise:
δ i j = { 0 if i ≠ j , 1 if i = j . {\displaystyle \delta _{ij}={\begin{cases}0&{\text{if }}i\neq j,\\1&{\text{if }}i=j.\end{cases}}} https://wikimedia.org/api/rest_v1/media/math/render/svg/904297d67d13919327bab9243517aef32e96c550
where the Kronecker delta δij is a piecewise function of variables i and j. For example, δ1 2 = 0, whereas δ3 3 = 1."
Note: this did not copy and paste properly. " {\displaystyle \delta _{ij}={\begin{cases}0&{\text{if }}i\neq j,\\1&{\text{if }}i=j.\end{cases}}}" See the referenced link.

1. https://en.wikipedia.org/wiki/Kronecker_delta

 

[Niladri Dan]

but i m sure differential of path function is also δ

 

[weirdoguy]

It has several meanings, like any other symbol used in maths.

 

[Niladri Dan]

hmmm...thats it...its quite confusing...

 

[AleksanderPhy]

Many thanks I thought so that it was Kronecker delta

 

[Orodruin]

It is impossible to give you an answer to this question without more information and context.