Constant Linear Resonant Response Regimes
Suppose that
and
. It follows that , , , and

(5.92) 
Hence, we deduce that

(5.93) 
This response regime is known as the resistiveinertial regime, because the layer response is dominated by
plasma resistivity and ion inertia [2,13,17]. The characteristic layer width is
,
which implies that the regime is valid when
, , , and
.
Suppose that
and
. It follows that , , , and
.
Hence, we deduce that

(5.94) 
This response regime is known as the viscousresistive regime, because the layer response is dominated by
ion perpendicular viscosity and plasma resistivity [3,11]. The characteristic layer width is
, which implies that
the regime is valid when
, ,
, and
.
Suppose that
and
. It follows that , , , and

(5.95) 
Hence, we deduce that

(5.96) 
This response regime is known as the semicollisional regime [9,21]. The characteristic
layer width is
, which implies that the regime is valid when ,
, , and
.
Suppose, finally, that
and
. It follows that , , , and

(5.97) 
Hence, we deduce that

(5.98) 
This response regime is known as the diffusiveresistive regime, because the layer
response is dominated by perpendicular energy diffusivity and plasma resistivity [15]. The characteristic
layer width is
, which implies that the regime is valid when
,
,
, and
.