Universality and scaling study of the critical behavior of the   two-dimensional Blume-Capel model in short-time dynamics
  In this paper we study the short-time behavior of the Blume-Capel model at the tricritical point as well as along the second order critical line. Dynamic and static exponents are estimated by exploring scaling relations for the magnetization and its moments at early stage of the dynamic evolution. Our estimates for the dynamic exponents, at the tricritical point, are $z= 2.215(2)$ and $\theta= -0.53(2)$. 
Roberto da Silva, Nelson A. Alves and J. R. Drugowich de Felicio