Invariant theory is a branch of abstract algebra dealing with actions of groups on algebraic varieties, such as vector spaces, from the point of view of...

In mathematics, geometric invariant theory (or GIT) is a method for constructing quotients by group actions in algebraic geometry, used to construct moduli...

resistors, capacitors, inductors and linear amplifiers. Linear time-invariant system theory is also used in image processing, where the systems have spatial...

In control theory, a time-invariant (TI) system has a time-dependent system function that is not a direct function of time. Such systems are regarded as...

associated with invariant theory, principally algebraic invariant theory. Invariant theory is concerned with expressions that remain constant (invariant) under...

Society: Invariant Theory and Finite Groups, Invariant Theory, and Inverse Invariant Theory and Steenrod Operations. The exposition in the text Invariant Theory...

In mathematics, a modular invariant of a group is an invariant of a finite group acting on a vector space of positive characteristic (usually dividing...

Invariant estimator in statistics Invariant measure Invariant (physics) Invariants of tensors Invariant theory Knot invariant Mathematical constant Mathematical...

This page is a glossary of terms in invariant theory. For descriptions of particular invariant rings, see invariants of a binary form, symmetric polynomials...

the power of the Dickson invariant. Over fields of characteristic 2, the determinant is always 1, so the Dickson invariant gives more information than...

used to calculate knot invariants and three-manifold invariants such as the Jones polynomial. Particularly, Chern–Simons theory is specified by a choice...

algebra, representation theory generalizes Fourier analysis via harmonic analysis, is connected to geometry via invariant theory and the Erlangen program...

topological invariants. While TQFTs were invented by physicists, they are also of mathematical interest, being related to, among other things, knot theory and...

A conformal field theory (CFT) is a quantum field theory that is invariant under conformal transformations. In two dimensions, there is an infinite-dimensional...

In invariant theory, a branch of algebra, given a group G, a covariant is a G-equivariant polynomial map V → W {\displaystyle V\to W} between linear representations...

scale. In quantum field theory, scale invariance has an interpretation in terms of particle physics. In a scale-invariant theory, the strength of particle...

scalar field theory can refer to a relativistically invariant classical or quantum theory of scalar fields. A scalar field is invariant under any Lorentz...

linear representation of Γ. "invariant polynomial in nLab". ncatlab.org. Draisma, Jan; Gijswijt, Dion. "Invariant Theory with Applications" (PDF). This...

In the mathematical field of knot theory, a knot invariant is a quantity (in a broad sense) defined for each knot which is the same for equivalent knots...

known for work in invariant theory and for the Clebsch–Gordan coefficients and Gordan's lemma. He was called "the king of invariant theory". His most famous...

the knot group and invariants from homology theory such as the Alexander polynomial. This would be the main approach to knot theory until a series of breakthroughs...

The invariant mass, rest mass, intrinsic mass, proper mass, or in the case of bound systems simply mass, is the portion of the total mass of an object...

geometry Classical invariant theory the form of invariant theory that deals with describing polynomial functions that are invariant under transformations...

Intersection theory — Invariant theory — Iwasawa theory — K-theory — KK-theory — Knot theory — L-theory — Lie theory — Littlewood–Paley theory — Matrix theory —...

textbook provided a comprehensive presentation of field theories in physics in terms of gauge invariant fiber bundles. Such formulations were known or suspected...

mathematics, in the fields of multilinear algebra and representation theory, the principal invariants of the second rank tensor A {\displaystyle \mathbf {A} } are...

IIA string theory. They are named after Mikhail Gromov and Edward Witten. The rigorous mathematical definition of Gromov–Witten invariants is lengthy...

dynamics of such a model has not yet been studied. For scale-invariant dilatonic theories of gravity with standard model-type matter couplings, Charles...

and second fundamental theorems of invariant theory concern the generators and relations of the ring of invariants in the ring of polynomial functions...

general, these eliminants are also invariant under various changes of variables, and are also fundamental in invariant theory. All these concepts are effective...