Results 11 to 20 of about 2,050,493 (176)

Effective Packing Dimension and Traceability [PDF]

open access: yesNotre Dame Journal of Formal Logic, 2010
We study the Turing degrees which contain a real of effective packing dimension one. Downey and Greenberg showed that a c.e. degree has effective packing dimension one if and only if it is not c.e. traceable. In this paper, we show that this characterization fails in general.
Downey, Rod, Ng, Keng Meng
openaire   +2 more sources

Tensor Product of Dimension Effect Algebras [PDF]

open access: yesOrder, 2020
19 ...
Anna Jenčová, Sylvia Pulmannová
openaire   +3 more sources

Quantum Hall effect in higher dimensions [PDF]

open access: yesNuclear Physics B, 2002
Following recent work on the quantum Hall effect on $S^4$, we solve the Landau problem on the complex projective spaces ${\bf C}P^k$ and discuss quantum Hall states for such spaces. Unlike the case of $S^4$, a finite spatial density can be obtained with a finite number of internal states for each particle.
Dimitra Karabali   +2 more
openaire   +3 more sources

Effective lagrangian for a mass dimension one fermionic field in curved spacetime [PDF]

open access: yes, 2018
In this work we use momentum-space techniques to evaluate the propagator $G(x,x^{\prime})$ for a spin $1/2$ mass dimension one spinor field on a curved Friedmann-Robertson-Walker spacetime.
da Silva, J. M. Hoff   +3 more
core   +5 more sources

Metastability in two dimensions and the effective potential [PDF]

open access: yesPhysical Review D, 1993
We study analytically and numerically the decay of a metastable phase in (2+1)-dimensional classical scalar field theory coupled to a heat bath, which is equivalent to two-dimensional Euclidean quantum field theory at zero temperature. By a numerical simulation we obtain the nucleation barrier as a function of the parameters of the potential, and ...
Mark G. Alford, Marcelo Gleiser
openaire   +4 more sources

The Casimir effect for fermions in one dimension [PDF]

open access: yesAnnals of Physics, 2004
We study the Casimir problem for a fermion coupled to a static background field in one space dimension. We examine the relationship between interactions and boundary conditions for the Dirac field. In the limit that the background becomes concentrated at a point (a ``Dirac spike'') and couples strongly, it implements a confining boundary condition.
P Sundberg, Robert L. Jaffe
openaire   +3 more sources

Effective model for crumpling in two dimensions? [PDF]

open access: yesPhysical Review D, 1992
5 ...
Clive F. Baillie   +1 more
openaire   +3 more sources

On existence of log minimal models

open access: yes, 2009
In this paper, we prove that the log minimal model program in dimension $d-1$ implies the existence of log minimal models for effective lc pairs (eg of nonnegative Kodaira dimension) in dimension $d$.
Caucher Birkar   +7 more
core   +1 more source

The effect of search mode on dimension weighting [PDF]

open access: yesFrontiers in Psychology, 2014
In a visual feature search task, reaction times to a singleton target are known to be shorter when participants have advance knowledge of the defining-features of targets. The present study examined whether the prior-knowledge effect is influenced by search modes (feature vs. singleton).
openaire   +4 more sources

The effect of projections on dimension in the Heisenberg group [PDF]

open access: yesRevista Matemática Iberoamericana, 2013
We prove analogs of classical almost sure dimension theorems for Euclidean projection mappings in the first Heisenberg group, equipped with a sub-Riemannian metric.
Zoltán M. Balogh   +4 more
openaire   +3 more sources

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