Tachyonic Teleparallel Dark Energy in Phase Space

Table 2

The eigenvalues of the linearization matrices corresponding to the critical points and lines in Table 1. Here, 𝜆₁=216|𝜉|𝑢²_𝑐+27 and 𝜆₂=6144|𝜉|³𝑢⁶_𝑐−1404|𝜉|²𝑢⁴_𝑐+243|𝜉|𝑢²_𝑐.

Eigenvalues	𝐴,𝐵,𝐶,𝐷	ℒ1, ℒ2
𝜈1	0	−3
𝜈2	13𝜆1+12𝜆2^1/3−32𝜉𝑢^2𝑐−3𝜆1+12𝜆2^1/3−2	−3
𝜈3	−16𝜆1+12𝜆2^1/3+32𝜉𝑢^2𝑐−32𝜆1+12𝜆2^1/3+√−232𝐼13𝜆1+12𝜆2^1/3+32𝜉𝑢^2𝑐−3(𝜆1+12𝜆2)^1/3	0
𝜈4	−16𝜆1+12𝜆2^1/3+(32|𝜉|𝑢^2𝑐−3)2(𝜆1+12𝜆2)^1/3−√−232𝐼13𝜆1+12𝜆2^1/3+32𝜉𝑢^2𝑐−3(𝜆1+12𝜆2)^1/3	0