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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Math Biosci. 2010 Jun 25;227(1):56–67. doi: 10.1016/j.mbs.2010.06.002

Table 5.

Existence and Stability Chart for System (1.2) with Combining Treatment.

Condition BRN Cases E0 Eab Ea,ab Eb,ab Ew,ab
rab < min{rw + h, ra + h, rb + h}
R0=bΛd(c+rab)
R0 < 1 stable
R0 > 1 unstable stable * * *
ra + h < min{rw + h, rb + h, rab}
R0=bΛd(c+ra+h)
R0 < 1 stable
R0 > 1 unstable * stable * *
rb + h < min{rw + h, ra + h, rab}
R0=bΛd(c+rb+h)
R0 < 1 stable
R0 > 1 unstable * * stable *
rw + h < min{ra + h, rb + h, rab}
R0=bΛd(c+rw+h)
R0 < 1 stable
R0 > 1 unstable * * * stable

Here * represents that if the equilibrium exists, it is unstable.