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Algebraic lattices via polynomial rings
(2019-12-01)
Signal constellations having lattice structure have been studied as meaningful means for signal transmission over Gaussian channel. Usually the problem of finding good signal constellations for a Gaussian channel is ...
Pairing and unpairing electron densities in organic systems: Two-electron three center through space and through bonds interactions
(American Institute of Physics, 2014-05)
Two-electron three-center bonding interactions in organic ions like methonium (CH
+
5
), ethonium (C2H
+
7
), and protonated alkanes n−C4H
+
11
isomers (butonium cations) are described and characterized within ...
Density functional theory characterization of the formation of copper clusters on Fs and Fs+ centers on a MgO surface
(2007)
Electronic structure and chemical reactivity of Cun clusters (n = 1-4) supported on a regular site (O5c) and on an oxygen vacancy (Fs and Fs+) of the MgO (1 0 0) surface were investigated using density functional theory. ...
Host-guest interactions between xanthones and water: the role of O-H center dot center dot center dot O, C-H center dot center dot center dot O, and pi center dot center dot center dot pi contacts in the channel- and cage-type frameworks
(SPRINGER/PLENUM PUBLISHERSNEW YORK, 2012)
In this article were studied two xanthone derivatives known as 1,5-dihydroxy-8-methoxyxanthone (I) and 1,3,7-trihydroxy-8-methoxyxanthone (II), which show one water molecule into their crystal structures. In xanthone I, ...
Constructions of algebraic lattices
(Sociedade Brasileira de Matemática Aplicada e Computacional, 2010-01-01)
In this work we present constructions of algebraic lattices in Euclidean space with optimal center density in dimensions 2, 3, 4, 6, 8 and 12, which are rotated versions of the lattices Λn, for n = 2,3,4,6,8 and K12. These ...
Constructions of algebraic lattices
(Sociedade Brasileira de Matemática Aplicada e Computacional, 2010-01-01)
In this work we present constructions of algebraic lattices in Euclidean space with optimal center density in dimensions 2, 3, 4, 6, 8 and 12, which are rotated versions of the lattices Λn, for n = 2,3,4,6,8 and K12. These ...
Influence of OH center dot center dot center dot N and NH center dot center dot center dot O inter- and intramolecular hydrogen bonds in the conformational equilibrium of some 1,3-disubstituted cyclohexanes through NMR spectroscopy and theoretical calculations
(Pergamon-elsevier Science LtdOxfordInglaterra, 2011)
Constructions of algebraic lattices
(Sociedade Brasileira de Matemática Aplicada e Computacional, 2014)
A family of asymptotically good lattices having a lattice in each dimension
(World Scientific Publ Co Pte Ltd, 2008-02-01)
A new constructive family of asymptotically good lattices with respect to sphere packing density is presented. The family has a lattice in every dimension n >= 1. Each lattice is obtained from a conveniently chosen integral ...