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This story draft by @keynesian has not been reviewed by an editor, YET.
Xinyu Li, University of Washington.
Figure 3. Phase portraits from left to right correspond to a stable node, a stable star, and a stable spiral respectively. 𝑘 < 𝑘 , G = 1, = 4, and from left to right is 1.1, 1.5625, and 5.
This paper is available on arxiv under CC 4.0 license.