Results 121 to 130 of about 8,017 (211)
The incommensurate composite YxOs4B4 (x = 1.161)
Tetragonal YxOs4B4 (x = 1.161) is an incommensurate composite of columns of Y atoms in a three‐dimensional Os4B4 framework. The structure was refined using the superspace approach.YxOs4B4 (x = 1.161) crystallizes as a tetragonal incommensurate composite of columns of Y atoms extending along [001] in an Os4B4 framework.
Berthold Stöger+2 more
wiley +1 more source
Distributions and integration in superspace [PDF]
Distributions in superspace constitute a very useful tool for establishing an integration theory. In particular, distributions have been used to obtain a suitable extension of the Cauchy formula to superspace and to define integration over the superball and the supersphere through the Heaviside and Dirac distributions, respectively.
Alí Guzmán Adán, Franciscus Sommen
openaire +5 more sources
Non-uniqueness of the supersymmetric extension of the O(3) σ-model
We study the supersymmetric extensions of the O(3) σ-model in 1+1 and 2+1 dimensions. We show that it is possible to construct non-equivalent supersymmetric versions of a given model sharing the same bosonic sector and free from higher-derivative terms.
Jose M. Queiruga, A. Wereszczynski
doaj +1 more source
In this paper, we study the general form of three-point functions of conserved current multiplets S α(k) = S (α1…αk) of arbitrary rank in four-dimensional N $$ \mathcal{N} $$ = 1 superconformal theory.
Evgeny I. Buchbinder+2 more
doaj +1 more source
Abstract Sodium cobaltite (NaxCoO2) is one of the most renowned and thermoelectrically promising p‐type cobalt oxide materials, showing exceptional performance in this domain. Nonetheless, its thermal instability in air renders it unsuitable for high‐temperature applications such as energy harvesting from industrial waste heat.
Katharina Kruppa+4 more
wiley +1 more source
Dichotomy and H^infinity functional calculi
densely defined closed operator on a Banach space is studied. We give conditions under which an operator with an $H^infty$ functional calculus has dichotomy.
R. DeLaubenfels, Y. Latushkin
doaj
Chern-Simons supergravity on supergroup manifolds
We construct N=1 d=3 AdS supergravity within the group manifold approach and compare it with Achucarro-Townsend Chern-Simons formulation of the same theory.
L. Castellani+2 more
doaj +1 more source
Supersymmetric Chern-Simons models in harmonic superspaces [PDF]
We review harmonic superspaces of the D=3, N=3 and 4 supersymmetries and gauge models in these superspaces. Superspaces of the D=3, N=5 supersymmetry use harmonic coordinates of the SO(5) group. The superfield N=5 actions describe the off-shell infinite-dimensional Chern-Simons supermultiplet.
arxiv
Fourier transform and related integral transforms in superspace [PDF]
In this paper extensions of the classical Fourier, fractional Fourier and Radon transforms to superspace are studied. Previously, a Fourier transform in superspace was already studied, but with a different kernel. In this work, the fermionic part of the Fourier kernel has a natural symplectic structure, derived using a Clifford analysis approach ...
arxiv +1 more source
A family of harmonic superspaces associated with four-dimensional spacetime is described. Some applications to supersymmetric field theories, including supergravity, are given.Comment: 25 pages, latex file, improved.
Hartwell, G. G., Howe, P. S.
core +1 more source