terms in DC/DC converter subject

[kappa_am]

I am reading a book about DC/DC converters titled: advanced DC/DC converters".
I have found two terms that are somewhat vague for me. I will be grateful if someone explain them to me.
the terms are "power series" and "power-Law" in below sentences.

the sentences are:

"This chapter introduces a
novel approach — the positive output cascade boost converter — that implements
the output voltage increasing in geometric progression, but with
simpler structure. They also effectively enhance the voltage transfer gain in
power-law."

Super-Lift (SL) technique is more powerful
than VL technique, its voltage transfer gain can be a very large number.
SL technique implements the output voltage increasing in geometric progression.
It effectively enhances the voltage transfer gain in power series.

 

[D.A.(Tony)Stewart]

Super-Lift (SL) technique appears to be nothing more than charge pump diode cap doublers or triplers with inductance

Power Law implies quadratic control of the PWM rather than linear.