complex projective plane

GPTKB entity

Statements (51)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
Kähler manifold
projective variety
gptkbp:automorphismGroup gptkb:PGL(3,C)
gptkbp:Betti_numbers 1, 0, 1, 0, 1
gptkbp:canonical_bundle gptkb:O(-3)
gptkbp:cohomology_ring Z[h]/(h^3)
gptkbp:compact yes
gptkbp:contains complex projective line
gptkbp:dimensions 2
gptkbp:Euler_characteristic 3
gptkbp:field complex numbers
gptkbp:first_Betti_number 0
gptkbp:first_Chern_class 3
gptkbp:fourth_Betti_number 1
gptkbp:fundamentalGroup trivial
gptkbp:has_cell_decomposition one 0-cell, one 2-cell, one 4-cell
gptkbp:has_Fubini-Study_metric yes
gptkbp:hasConnection yes
gptkbp:hasModel gptkb:projective_geometry_over_C
gptkbp:hasSpecialCase projective plane
complex projective space
gptkbp:heldBy gptkb:algebraic_geometry
Kähler manifold
simply connected space
compact complex surface
gptkbp:homogeneous_space_of gptkb:PGL(3,C)
gptkbp:homology_group_H_2 Z
https://www.w3.org/2000/01/rdf-schema#label complex projective plane
gptkbp:is_a_del_Pezzo_surface yes
gptkbp:is_homogeneous_space yes
gptkbp:is_not_homeomorphic_to gptkb:quaternionic_projective_plane
gptkb:real_projective_plane
gptkb:real_4-sphere
gptkbp:is_orientable yes
gptkbp:is_smooth yes
gptkbp:notation gptkb:CP^2

gptkbp:Picard_group Z
gptkbp:points_are_equivalence_classes_of nonzero triples (z0, z1, z2) in C^3
gptkbp:quotient_of C^3 \\ {0} by C*
gptkbp:real_dimension 4
gptkbp:second_Betti_number 1
gptkbp:third_Betti_number 0
gptkbp:used_in gptkb:algebraic_geometry
gptkb:topology
differential geometry
complex geometry
gptkbp:bfsParent gptkb:octonionic_projective_plane
gptkb:real_projective_plane
gptkbp:bfsLayer 6