Results 21 to 30 of about 75,949 (236)

On quantum obstruction spaces and higher codimension gauge theories

open access: yesPhysics Letters B, 2021
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
doaj   +1 more source

Conformal surface defects in Maxwell theory are trivial

open access: yesJournal of High Energy Physics, 2022
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
doaj   +1 more source

Embedding codimension of the space of arcs

open access: yesForum of Mathematics, Pi, 2022
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
doaj   +1 more source

THE FUNDAMENTALS OF WORD-COMPOUND AND COMPOSITE NOMINATION

open access: yesГуманитарные и юридические исследования, 2021
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
doaj  

On a codimension three bifurcation [PDF]

open access: yesČasopis pro pěstování matematiky, 1984
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
openaire   +1 more source

Codimension-Two Bifurcations of Fixed Points in a Class of Discrete Prey-Predator Systems

open access: yesDiscrete Dynamics in Nature and Society, 2011
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
doaj   +1 more source

Clan acts and codimension

open access: yesSemigroup Forum, 1972
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.
openaire   +3 more sources

On subfields of countable codimension [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
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 ) )
openaire   +4 more sources

Divisorial contractions to codimension three orbits [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2021
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
doaj   +1 more source

On the codimension-three conjecture

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 2010
few small texnical ...
Kari Vilonen   +2 more
openaire   +4 more sources

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