yes, thanks. I thought this question is a pure mathematical one. But when I searched about it, all literature I found is written by natural scientists and engineers. It made me feel strange. I thought this question is general enough to interest a mathematician. I just wonder if there's a lot of...
A correlation function just describes how strongly are the probabilities of different quantities correlated to each other. It doesn't have to concern stochastic processes. I'm also not familiar with stochastic processes so I'm sorry I don't understand your question in the end...
What are the general properties of 3-point correlation function of a spin-2 field?
And what about 4-point, 5-point correlation functions?
spin-3, spin-4 fields?
What mathematical category do these problems belong to? Are there any specific studies on them? (They are so widely used in...