Struct LineBundleData 

pub struct LineBundleData {
    pub self_intersection: i64,
    pub curve_intersections: Vec<i64>,
}

Represents a line bundle on a smooth projective variety by its numerical data.

Fields

self_intersection: i64

Self-intersection number (for surfaces: L²).

curve_intersections: Vec<i64>

Intersection with a curve class (for ampleness checks).

Implementations

impl LineBundleData

pub fn new(self_intersection: i64, curve_intersections: Vec<i64>) -> Self

Create a LineBundleData with given self-intersection and curve intersections.

pub fn is_ample_nakai_moishezon(&self) -> bool

Check ampleness via Nakai-Moishezon on a surface: L² > 0 and L·C > 0 for all curves.

pub fn is_nef(&self) -> bool

Check the nef property: L·C ≥ 0 for all curves.

pub fn seshadri_constant(&self, multiplicities: &[u64]) -> f64

Compute the Seshadri constant (simplified: min ratio L·C / mult_x(C)).

Trait Implementations

impl Clone for LineBundleData

fn clone(&self) -> LineBundleData

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LineBundleData

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.