- #1
EhsanZ
- 11
- 0
With Hobson's notation:
H=(da/dt)/a
dH/dt = ((d2a/dt2)/a) - ((da/dt)/a)2
If ((d2a/dt2)/a) is negative, (dH/dt) is certainly negative.
But if ((d2a/dt2)/a) is positive, (dH/dt) can be positive or negative.
What is your interpretation?
H=(da/dt)/a
dH/dt = ((d2a/dt2)/a) - ((da/dt)/a)2
If ((d2a/dt2)/a) is negative, (dH/dt) is certainly negative.
But if ((d2a/dt2)/a) is positive, (dH/dt) can be positive or negative.
What is your interpretation?