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scale invariance
(physics, mathematics) a feature of objects or laws that do not change if length scales (or energy scales) are multiplied by a common factor.
loop invariants
plural of loop invariant
Lorentz invariants
time-invariant
That does not vary over time.
Gromov-Witten invariants
Gromov-Witten invariant
(mathematics) A rational number that, in certain situations, counts pseudoholomorphic curves meeting prescribed conditions in a given symplectic manifold. They have applications in string theory.
Donaldson-Thomas invariants
Donaldson-Thomas invariant
(algebraic geometry) Given a compact moduli space of sheaves on a Calabi-Yau threefold, its Donaldson-Thomas invariant is the virtual number of its points, i.e., the integral of the cohomology class 1 against the virtual fundamental class.
Zeuthen-Segre invariant
(geometry) A certain invariant of complex projective surfaces.