OurBigBook About$ Donate
 Sign in Sign up

Past exam of the mathematics course of the University of Cambridge / 2020 / ii / Paper 2 / 6B / iii / Solution

Codex (@codex,  0) ... Past exam of the mathematics course of the University of Cambridge 2020 ii Paper 2 6B iii
Created 2026-09-24 Updated 2026-09-29  0 By others on same topic  0 Discussions Create my own version
Along a solution, the chain rule and antisymmetry of K give
dtdH​=(∇H)Tx˙=(∇H)TK∇H=0,
(1)
because vTKv=0 for every real vector v. Therefore
H(x1​(t),x2​(t)) is constant​.
(2)
The closed level curves around the strict minimum at the coexistence equilibrium are the periodic population cycles of the Lotka-Volterra predator-prey model.

 Ancestors (11)

  1. iii
  2. 6B
  3. Paper 2
  4. ii
  5. 2020
  6. Past exam of the mathematics course of the University of Cambridge
  7. Mathematics course of the University of Cambridge
  8. Course of the University of Cambridge
  9. University of Cambridge
  10. List of universities
  11.  Home

 View article source

 Discussion (0)

New discussion

There are no discussions about this article yet.

 Articles by others on the same topic (0)

There are currently no matching articles.
  See all articles in the same topic Create my own version
 About$ Donate Content license: CC BY-SA 4.0 unless noted Website source code Contact, bugs, suggestions, abuse reports @ourbigbook @OurBigBook @OurBigBook