β

ε ( t )

d ε d t

w ( t )

d w d t

h ( t , 0 )

d h d t ( t , 0 )

V ( t )

d V d t

β < 1

ε ( t )

t t 2

>0

w ( t ) 0

t t 2

<0

h ( t , 0 ) 0

t t 2

<0

V ( t ) 0

t t 2

<0

β = 1

ε ( t )

t

Exponentially

>0

w ( t ) 0

t

Exponentially

<0

h ( t , 0 ) 0

t

Exponentially

<0

V ( t ) 0

t

Exponentially

<0

1 < β < 4 5

ε ( t )

t

>0

w ( t ) 0

t

<0

h ( t , 0 ) 0

t

<0

V ( t ) 0

t

<0

β = 4 5

ε ( t ) = 1

0

w ( t ) 0

t

<0

h ( t , 0 ) 0

t

<0

V ( t ) 0

t

<0

4 5 < β < 2 5

ε ( t ) 0

t

<0

w ( t ) 0

t

<0

h ( t , 0 ) 0

t

<0

V ( t ) 0

t

<0

β = 2 5

ε ( t ) 0

t

<0

w ( t ) = 1

0

h ( t , 0 ) 0

t

<0

V ( t ) 0

t

<0

2 5 < β < 0

ε ( t ) 0

t

<0

w ( t )

t

>0

h ( t , 0 ) 0

t

<0

V ( t ) 0

t

<0

β = 0

ε ( t ) 0

t

<0

w ( t )

t

>0

h ( t , 0 ) 0

t

<0

V = 3 4

0

0 < β

ε ( t ) 0

t

<0

w ( t )

t

>0

h ( t , 0 ) 0

t

<0

V ( t )

t

>0