Rotating Hyperspherical Universe in Einstein-Cartan Cosmology 2.0

Shear scalar: 2\sigma^2,

Vorticity scalar: 2\omega^2,

Spin density: s(t)s(t).

The parameter space includes:

• 0\rho_0: initial energy density,

• s0s_0: initial spin density,

• 0,0\sigma_0, \omega_0: initial anisotropies,

• \Lambda: cosmological constant,

• \alpha: spin--torsion coupling coefficient (order of GG).

Initial values are chosen to reflect physically plausible early-universe conditions:

• 01094g/cm3\rho_0 \sim 10^{94} \, \text{g/cm}^3,

•