Model Mathematics

Component: environment

Component: A

dd time A = f ⁢ v_tilday ⁢ G - muA ⁢ A

Component: R

ddtimeR= pi3 ⁢ E + beta ⁢ A - muR ⁢ R

Component: E

ddtimeE= lambdaE ⁢ A - sigma3 ⁢ R + b3 ⁢ E + muE ⁢ E

Component: G

ddtimeG= gamma ⁢ E - v_tilday ⁢ G + muG ⁢ G