Ordinary stability-in-families interface #
This file combines the three ordinary clauses of Definition 20.5 with the uniform support and boundedness clauses (4)--(5) of Definition 21.15 of arXiv:1902.08184v4. It is the top-level ordinary abstract family package.
The index types stand for geometric base-change, object, fiber, and numerical moduli tests supplied by a client. The library neither constructs nor recognizes those geometric objects. The support field, by contrast, is the genuine quotient-uniform quadratic support predicate already implemented in the support subsystem. Vacuous-probe inhabitants -- constant-true predicates and full-locus witnesses -- are development scaffolding, not part of this stable interface; constant-family reindexings that consume a genuine support datum remain stable API.
The five separately auditable ordinary family conditions: Definition 20.5(1)--(3) followed by Definition 21.15(4)--(5).
- definition20_5 : Families.OrdinaryDefinition20_5Conditions charge stable dedekind
Definition 20.5(1)--(3).
- uniformSupport : Support.HasUniformQuadraticSupportPropertyModulo V₀ Z hV₀ semistableClasses
Definition 21.15(4).
- bounded : Moduli.UniversalBoundedness boundedness
Definition 21.15(5).
Instances For
The geometric and numerical input conditions used by deformation arguments: openness, relative HN integration, uniform quotient support, and boundedness. The theorem consuming these inputs is deliberately not named or indexed here.
- openness : Families.UniversalOpenness stable
Universal openness of geometric stability.
- dedekindHN : Families.IntegratesAfterDedekindBaseChange dedekind
Relative HN structures after every eligible Dedekind base change.
- uniformSupport : Support.HasUniformQuadraticSupportPropertyModulo V₀ Z hV₀ semistableClasses
One quotient quadratic form controls every fiber semistable locus.
- bounded : Moduli.UniversalBoundedness boundedness
Every supplied numerical moduli problem is bounded.