Results 21 to 30 of about 88,430 (310)
Unipotent Groups in Invariant Theory [PDF]
Proceedings of the National Academy of Sciences, 1973 The finite generation of the ring of invariants of a special class of unipotent groups is established—namely, unipotent radicals of parabolic subgroups.
Hochschild, G., Mostow, G. D.
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Logic and invariant theory. I. Invariant theory of projective properties [PDF]
Transactions of the American Mathematical Society, 1973 This paper initiates a series of papers which will reexamine some problems and results of classical invariant theory, within the framework of modern first-order logic. In this paper the notion that an equation is of invariant significance for the general linear group is extended in two directions.
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Algorithms for computing normally hyperbolic invariant manifolds [PDF]
, 1997 An effcient algorithm is developed for the numerical computation of normally hyperbolic invariant manifolds, based on the graph transform and Newton's method.
Vegter, G., +10 more
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Rotationally invariant texture based features [PDF]
, 2001 Content-based retrieval is ultimately dependent on the features used for the annotation of data and its efficiency is dependent on the invariance and robust properties of these features.
Hill, PR, Canagarajah, CN, Bull, DR
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Invariant functionals in higher-spin theory
Nuclear Physics B, 2017 A new construction for gauge invariant functionals in the nonlinear higher-spin theory is proposed. Being supported by differential forms closed by virtue of the higher-spin equations, invariant functionals are associated with central elements of the ...
M.A. Vasiliev
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Duality-invariant extensions of Einstein-Maxwell theory
Journal of High Energy Physics, 2021 We investigate higher-derivative extensions of Einstein-Maxwell theory that are invariant under electromagnetic duality rotations, allowing for non-minimal couplings between gravity and the gauge field. Working in a derivative expansion of the action, we
Pablo A. Cano, Ángel Murcia
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Combinatorial invariant theory of projective reflection groups [PDF]
Discrete Mathematics & Theoretical Computer Science, 2009 We introduce the class of projective reflection groups which includes all complex reflection groups. We show that several aspects involving the combinatorics and the representation theory of complex reflection groups find a natural description in this ...
Fabrizio Caselli
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On Einstein–Born–Infeld conformally invariant theory
European Physical Journal C: Particles and Fields, 2023 A new Weyl Born Infeld model is presented. It takes as basis the formalism for the mathematical description of conformal gravity based on the local twistor geometry from Merkulov (Class Quantum Gravity 1:349–354, 1984).
Diego Julio Cirilo-Lombardo
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Instability in Invariant Theory [PDF]
The Annals of Mathematics, 1978 Transcriber's note: In the fall of 1976, my advisor, David Mumford, handed me a short preprint by George Kempf to read. It was the first state of what eventually became his influential Annals paper "Instability in Invariant Theory" (Annals of Mathematics, Second Series, Vol. 108, No. 2 (Sep., 1978), pp. 299-316).
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On Orbifold Criteria for Symplectic Toric Quotients
Symmetry, Integrability and Geometry: Methods and Applications, 2013 We introduce the notion of regular symplectomorphism and graded regular symplectomorphism between singular phase spaces. Our main concern is to exhibit examples of unitary torus representations whose symplectic quotients cannot be graded regularly ...
Carla Farsi +2 more
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