quintuple torus
At the age of 30, I’ve finally gone and gotten my ears pierced. Topologically this changes me from a genus 3 surface (gastrointestinal tract + 2 nasal passages; everything else is a “dead end” and therefore unimportant) to genus 5.
What is cooler than topology?
This paper is devoted to investigating the quasiperiodic route to chaos in the four-dimensional piecewise-smooth autonomous model of a control system with hysteresis. We show how the quasiperiodic trajectory may lie on different kinds of two dimensional tori, including single-, double-, and quintuple-turn tori. We also present a detailed analysis of a scenario for the destruction of two-dimensional torus through a homoclinic bifurcation.
Zhusubaliyev, Z.T. , Soukhoterin, E., Mosekilde, E.
Can you believe these guys?
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March 25, 2008 at 8:29 am
Matt
Are Eustachian tubes topologically significant? Maybe ape 5 is now genus 5 too!
April 3, 2008 at 8:15 am
lisa
OK I think because Eustachian tubes connect to the throat they DON’T count. My authority is Usenet and chess forums.
http://groups.google.com/group/sci.math/browse_thread/thread/19fd0b77faddf20b/cff502f4b5175e4f
http://www.redhotpawn.com/board/showthread.php?threadid=20077
In any event ape5 welcomes all, regardless of genus.