Results 61 to 70 of about 3,762 (206)
From mystery to modulation: the structural story of Rb2[Si2O5]
Acta Crystallographica Section B, EarlyView.The crystal structure of Rb2[Si2O5] has been solved and refined as an incommensurately modulated phase. Each [SiO4] tetrahedron of the phyllosilicate adopts one of two distinct orientations, and the positions of their constituent silicon and oxygen atoms are modeled using a combination of crenel and harmonic positional modulation functions.The crystal ...
Clivia Hejny +2 more
wiley +1 more source
N = 1 supercurrents of eleven-dimensional supergravity
Journal of High Energy Physics, 2018 Eleven-dimensional supergravity can be formulated in superspaces locally of the form X × Y where X is 4D N = 1 conformal superspace and Y is an arbitrary 7-manifold admitting a G 2-structure.
Katrin Becker +3 more
doaj +1 more source
Branes, fermions, and superspace dualities
Journal of High Energy Physics, 2021 We use the superspace formulation of supergravity in eleven and ten dimensions to compute fermion couplings on the M2-brane and on Dp-branes. In this formulation fermionic couplings arise naturally from the θ-expansion of the superfields from which the ...
Ander Retolaza +3 more
doaj +1 more source
Well‐posedness of heat equations with nonlinearities of arbitrarily rapid growth
Proceedings of the London Mathematical Society, Volume 133, Issue 3, September 2026.Abstract We address local‐ and global‐in‐time well‐posedness of the Cauchy problem for nonlinear heat equations without imposing growth rate restrictions on the nonlinearity a priori. Our results constitute a nontrivial expansion of the classical Lq$L^q$‐theory for nonlinearities dominated by polynomial growth and the exponential‐Orlicz space theory ...
Yohei Fujishima +2 more
wiley +1 more source
Towards massive field-theory amplitudes from the cohomology of pure spinor superspace
Journal of High Energy PhysicsBy analogy with the formula for the massless string disk amplitudes, we define massive field-theory tree amplitudes and conjecture that the BRST cohomology structure of pure spinor superspace fixes their form. We give evidence by deriving the pure spinor
Carlos R. Mafra
doaj +1 more source
From space to superspace and back: Superspace Group Finder [PDF]
The symmetry of a commensurately modulated crystal structure can be described in two different ways: in terms of a conventional three-dimensional space group or using the superspace concept in (3 + d) dimensions.
Palatinus, Lukas +2 more
core +2 more sources
Interpretation of diffuse scattering using superspace crystallography [PDF]
, 2019 Single crystal diffuse scattering is generally interpreted using correlation parameters that describe probabilities for certain configurations on a local scale.
Schmidt, EM, Neder, RB, Schmidt, Ella
core +1 more source
Exploring curved superspace [PDF]
Journal of High Energy Physics, 2012 We systematically analyze Riemannian manifolds M that admit rigid supersymmetry, focusing on four-dimensional N=1 theories with a U(1)_R symmetry. We find that M admits a single supercharge, if and only if it is a Hermitian manifold. The supercharge transforms as a scalar on M.
Dumitrescu, Thomas T. +2 more
openaire +3 more sources
Temperature evolution of the high‐harmonic magnetic modulations in DyFeO3
Journal of Applied Crystallography, Volume 59, Issue 4, Page 1332-1337, August 2026.The temperature evolution of the high‐harmonic incommensurate magnetic ordering of Dy3+ in DyFeO3 orthoferrite is compared with the literature results on the soliton lattice of TbFeO3 observed in an external magnetic field.We report on the temperature evolution of magnetic satellites associated with the incommensurate magnetic ordering of Dy3+ ions in ...
Piotr Fabrykiewicz +5 more
wiley +1 more source
Journal of High Energy Physics, 2019 N $$ \mathcal{N} $$ -extended massless arbitrary integer and half-integer spin supermultiplets in four dimensional flat space are studied in the framework of light-cone gauge formalism.
R.R. Metsaev
doaj +1 more source