Displaying similar documents to “Lines vortices in the U(1) - Higgs model”

Minimax nonparametric hypothesis testing for ellipsoids and Besov bodies

Yuri I. Ingster, Irina A. Suslina (2010)

ESAIM: Probability and Statistics

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We observe an infinitely dimensional Gaussian random vector where is a sequence of standard Gaussian variables and is an unknown mean. We consider the hypothesis testing problem alternatives H ε , τ : v ∈ V ε for the sets V ε = V ε ( τ , ρ ε ) ⊂ l 2 . The sets are -ellipsoids of semi-axes with -ellipsoid of semi-axes removed or similar Besov bodies with Besov bodies removed. Here τ = ( κ , R ) or τ = ( κ , h , t , R ) ; κ = ( p , q , r , s ) are the parameters which define the sets for given radii , 0 < ; is the asymptotical...

About the decision of reachability for register machines

Véronique Cortier (2010)

RAIRO - Theoretical Informatics and Applications

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We study the decidability of the following problem: given  affine functions ƒ,...,ƒ over ℕ k and two vectors v 1 , v 2 ∈ ℕ k , is reachable from by successive iterations of ƒ,...,ƒ (in this given order)? We show that this question is decidable for and undecidable for some fixed .