Buscar
Mostrando ítems 41-50 de 8418
Lithium-lanthanum double chromates
(1993-11-12)
Synthesis and crystallographic data are reported for low and high temperature forms of LiLa(CrO4)2. The compounds are closely related to lamellar rare earth phosphates and arsenates of sodium and to RbLu(CrO4)2. Lattice ...
Lithium-lanthanum double chromates
(1993-11-12)
Synthesis and crystallographic data are reported for low and high temperature forms of LiLa(CrO4)2. The compounds are closely related to lamellar rare earth phosphates and arsenates of sodium and to RbLu(CrO4)2. Lattice ...
Extended Relativistic Toda Lattice, L-Orthogonal Polynomials and Associated Lax Pair
(2018-01-01)
When a measure Ψ(x) on the real line is subjected to the modification dΨ( t )(x) = e− t xdΨ(x) , then the coefficients of the recurrence relation of the orthogonal polynomials in x with respect to the measure Ψ( t )(x) are ...
Topological quantum codes from lattices partition on the n-dimensional flat tori
(2021-08-01)
In this work, we show that an n-dimensional sublattice Λ′ = mΛ of an n-dimensional lattice Λ induces a G = Znm tessellation in the flat torus Tβ′ = Rn/Λ′, where the group G is isomorphic to the lattice partition Λ/Λ′ . As ...
ROTATED A(n)-LATTICE CODES OF FULL DIVERSITY
(Amer Inst Mathematical Sciences-aims, 2020-09-20)
Some important properties of lattices are packing density and full diversity, which may be good for signal transmission over both Gaussian and Rayleigh fading channel, respectively. The algebraic lattices are constructed ...
Rotated dn-lattices in dimensions power of 3
(2021-09-15)
In this work, we present constructions of families of rotated Dn-lattices which may be good for signal transmission over both Gaussian and Rayleigh fading channels. The lattices are obtained as sublattices of a family of ...
Trace forms of certain subfields of cyclotomic fields and applications
(2020-05-07)
In this work, we present a explicit trace forms for maximal real subfields of cyclotomic fields as tools for constructing algebraic lattices in Euclidean space with optimal center density. We also obtain a closed formula ...
Modal operators for meet-complemented lattices
(Oxford University Press, 2017-08)
Weinvestigate some modal operators of necessity and possibility that form an adjoint pair in the context of meet-complemented lattices. We prove that they form an equational class and we study the modalities, i.e. the ...