- #1

ppy

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Hi,

I have attached a file. I am stuck on question 1 on how to find Noether's constant. The solutions are provided however I do not see what they have done. It states that η[itex]^{x}[/itex]=1 and η[itex]^{y}[/itex]=-1 I do not understand how we know this. I can see that [itex]\xi[/itex]=0 because else the -x[itex]^{2}[/itex]-y[itex]^{2}[/itex]-2xy term will not cancel.

Thanks,

Melissa Poole

I have attached a file. I am stuck on question 1 on how to find Noether's constant. The solutions are provided however I do not see what they have done. It states that η[itex]^{x}[/itex]=1 and η[itex]^{y}[/itex]=-1 I do not understand how we know this. I can see that [itex]\xi[/itex]=0 because else the -x[itex]^{2}[/itex]-y[itex]^{2}[/itex]-2xy term will not cancel.

Thanks,

Melissa Poole