Results 21 to 30 of about 75,949 (236)
On quantum obstruction spaces and higher codimension gauge theories
Using the quantum construction of the BV-BFV method for perturbative gauge theories, we show that the obstruction for quantizing a codimension 1 theory is given by the second cohomology group with respect to the boundary BRST charge. Moreover, we give an
Nima Moshayedi
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Conformal surface defects in Maxwell theory are trivial
We consider a free Maxwell field in four dimensions in the presence of a codimension two defect. Reflection positive, codimension two defects which preserve conformal symmetry in this context are very limited.
Christopher P. Herzog, Abhay Shrestha
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Embedding codimension of the space of arcs
We introduce a notion of embedding codimension of an arbitrary local ring, establish some general properties and study in detail the case of arc spaces of schemes of finite type over a field.
Christopher Chiu+2 more
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THE FUNDAMENTALS OF WORD-COMPOUND AND COMPOSITE NOMINATION
The article focuses on the study of the mechanisms that create nomination of wordcombinations and nomination of composites on the material of compound structured formations in flora namings.
O. Ryabko
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On a codimension three bifurcation [PDF]
The author calculates a prenormal form (up to third order) for a generic 3-parametrical deformation of the codimension 3 singularity of a vector field on \({\mathbb{R}}^ 3\), characterized by the zero eigenvalue of multiplicity 3: Here ''generic'' means ''transversal'' to the semialgebraic submanifold of the above singularities in the space of germs of
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Codimension-Two Bifurcations of Fixed Points in a Class of Discrete Prey-Predator Systems
The dynamic behaviour of a Lotka-Volterra system, described by a planar map, is analytically and numerically investigated. We derive analytical conditions for stability and bifurcation of the fixed points of the system and compute analytically the normal
R. Khoshsiar Ghaziani+2 more
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Let (T, X) be a continuum act, let cd X=n and suppose A is a T-ideal (i.e., a T-invariant subspace of X), such that Hn(A)≠0. We prove that A is a minimal T-ideal iff A=Gx for some x∈X and maximal group G in the minimal ideal of T. Moreover, if these conditions are satisfied, then A is the only minimal T-ideal and also is the unique floor for every ...
Hofmann, K.H., Day, J.M.
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On subfields of countable codimension [PDF]
In [2] the authors asked if any two real closed subfields R , R ′ R, R’ of the field of complex numbers C such that R ( √ ( − 1 ) ) = R ′ ( √ ( − 1 ) )
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Divisorial contractions to codimension three orbits [PDF]
Let $G$ be a connected algebraic group. We study $G$-equivariant extremal contractions whose centre is a codimension three $G$-simply connected orbit. In the spirit of an important result by Kawakita in 2001, we prove that those contractions are weighted
Samuel Boissière, Enrica Floris
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On the codimension-three conjecture
few small texnical ...
Kari Vilonen+2 more
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