2 problems

Equality of critical exponents. The equality $b=\beta$ should hold in every dimension larger than two. Equivalently, near the critical density, $a(\rho)\simeq (2^d-1)\rho_a(\rho)$.…

Consider the Sun–Guo–Grant equation … where the noise has correlation … Under the scaling transformation $\vec r\to b\vec r$, $t\to b^z t$, and $h\to b^\alpha h$, scale invariance…