11/14/2007, 10:10 PM

Hej Gotfried,

Why not:

Define complex number u Euler style , as

u=a+sqrt(-1)b so u= a+-ib where +i and -i must be used separately but together- they are both in sqrt(-1) always. And stick to it throughout the derivations.

Then red point coordinates will be:

u= 0+-ipi/2

t=0+-i

s=e^pi/2

And that will correspond to h(e^pi/2) having values +i, -i in at least in first 2 branches. So on right quadrants will have 2 curves instead of 1. May be symmetric, may be not- it has to be calculated according to Your methods. On left quadrants I am not sure as I can not really understand what values in left quadrants correspond to. .

and then for complex-> real case

[b]0<beta<pi taken anticlockwise AND 0<beta<-pi taken clockwise[/b]

Alfa, s limits i do not know-may be they change as well in this case?

Ivars

Gottfried Wrote:Hmm; I don't know absolutely. See my derivations in the article

function; it seems pretty straightforward and I don't think, there are other solutions - but...

t is t=exp(u); so even if we use periodical u (including multiple 2*Pi*I*k) there is only one t according to my considerations. Don't know, whether there are other solutions possible - but if you should see another solution, I'd like to know this.

Gottfried

Why not:

Define complex number u Euler style , as

u=a+sqrt(-1)b so u= a+-ib where +i and -i must be used separately but together- they are both in sqrt(-1) always. And stick to it throughout the derivations.

Then red point coordinates will be:

u= 0+-ipi/2

t=0+-i

s=e^pi/2

And that will correspond to h(e^pi/2) having values +i, -i in at least in first 2 branches. So on right quadrants will have 2 curves instead of 1. May be symmetric, may be not- it has to be calculated according to Your methods. On left quadrants I am not sure as I can not really understand what values in left quadrants correspond to. .

and then for complex-> real case

[b]0<beta<pi taken anticlockwise AND 0<beta<-pi taken clockwise[/b]

Alfa, s limits i do not know-may be they change as well in this case?

Ivars