AppDynSys : Hopf Bifurcation : Subcritical

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In the same way that there are supercritical and subcritical pitchfork bifurcations, there are also supercritical and subcritical Hopf bifurcations -- these are rightly viewed as pitchforks in the (nonnegative) radial variable. Illustrated here is a subcritical Hopf, in which an unstable limit cycle annihilates with a stable equilibrium to produce an unstable equilibrium. Danger! These are not nice to meet in the real world...
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what software did you use for tracing this video???

yessure
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Prof! Are you avare of Schumann resonances? Funny thing happend recently. I was asking myself, why the shumanm resonance peaks are at the values they are. Went to wiki of lies, found there is a formula. That formula gives values that are roughly 30% off. I said "BS" out loud, and wrote INSTANTLY the true formula for Schuman resonance mode 1. Is all science based on lies? I have said "BS" many times now, I and the same way I have wrote instantly the pure formulas I know im right when TruthBots erase all the data I leave behind. The things I found prove that ulra ancient ppl new the size of the plank length. They also knew how the Earth hologram is "built" mathematically and chose unit systems according to that. Wanna talk? PS! Famous Collatz conjecture is scam. :D You can solve it instantly. But cucademia needs their hoaxes. No proofs allowed. The reason noone has solved it is a) No proofs allowed. b) "omg, no one has solved it, i cant either" dark magic. Wanna join the fight with evil? ;D If you do not belive me, solve the collatz.

vikeudik