3-sphere

GPTKB entity

Statements (51)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
gptkb:topology
gptkb:Riemannian_manifold
gptkbp:appearsIn gptkb:Poincaré_conjecture
gptkbp:borders none
gptkbp:can_be_parameterized_by hyperspherical coordinates
gptkbp:can_be_visualized_as set of unit quaternions
gptkbp:describes set of points in R^4 at unit distance from origin
unit sphere in 4 dimensions
gptkbp:dimensions 3
gptkbp:embedded_in gptkb:4-dimensional_Euclidean_space
gptkbp:Euler_characteristic 0
gptkbp:fiber_in_Hopf_fibration gptkb:circle_(S^1)
gptkbp:first_Chern_class 0
gptkbp:fundamentalGroup trivial
gptkbp:generalizes gptkb:butter
gptkbp:hasModel gptkb:3-dimensional_spherical_geometry
gptkbp:hasSpecialCase n-sphere
gptkbp:homeomorphic_to unit quaternions
gptkbp:homology_group_H_0 Z
gptkbp:homology_group_H_1 0
gptkbp:homology_group_H_2 0
gptkbp:homology_group_H_3 Z
https://www.w3.org/2000/01/rdf-schema#label 3-sphere
gptkbp:is_a_closed_manifold yes
gptkbp:is_a_compact_manifold yes
gptkbp:is_a_covering_space_of 3-dimensional real projective space
gptkbp:is_a_double_cover_of gptkb:SO(3)
gptkbp:is_a_fiber_bundle_over 2-sphere
gptkbp:is_a_homogeneous_space yes
gptkbp:is_a_parallelizable_manifold yes
gptkbp:is_a_Riemannian_manifold yes
gptkbp:is_a_smooth_manifold yes
gptkbp:is_a_solution_to gptkb:Poincaré_conjecture
gptkbp:orientable yes
gptkbp:relatedTo gptkb:SU(2)
gptkb:Hopf_fibration
quaternions
orthogonal group
gptkbp:simply_connected yes
gptkbp:structure gptkb:SU(2)
gptkb:Lie_group
gptkbp:symbol S^3
gptkbp:used_in gptkb:cosmology
gptkb:geometry
gptkb:theoretical_physics
gptkb:topology
gptkbp:volume 2π^2
gptkbp:bfsParent gptkb:torus_link
gptkb:Hopf_fibration
gptkbp:bfsLayer 5