Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
Simply connected symplectic 4-manifolds with \(b_2^+ = 1\) and \(c_1^2 = 2\) - MaRDI portal

Simply connected symplectic 4-manifolds with \(b_2^+ = 1\) and \(c_1^2 = 2\) (Q1770275)

From MaRDI portal
scientific article
Language Label Description Also known as
English
Simply connected symplectic 4-manifolds with \(b_2^+ = 1\) and \(c_1^2 = 2\)
scientific article

    Statements

    Simply connected symplectic 4-manifolds with \(b_2^+ = 1\) and \(c_1^2 = 2\) (English)
    0 references
    14 April 2005
    0 references
    The author shows that there is a simply connected closed manifold homeomorphic to but not diffeomorphic to \(\mathbb CP^{2}\#7\overline{\mathbb CP} ^{2}.\) This shows that \(\mathbb CP^{2}\#8\overline{\mathbb CP}^{2}\)has at least three distinct smooth structures.
    0 references
    0 references

    Identifiers

    0 references
    0 references
    0 references
    0 references
    0 references
    0 references
    0 references
    0 references