On Rusakov's n-ary rs-Groups

Properties of n-ary groups connected with the affine geometry are considered. Some conditions for an n-ary rs-group to be derived from a binary group are given. Necessary and sufficient conditions for an n-ary group -derived from an additive group of a field to be an rs-group are obtained. The existence of non-commutative n-ary rs-groups which are not derived from any group of arity m<n for every n3, r>2 is proved.     

Common positive solutions for two non-linear matrix equations using fixed point results in b-metric-like spaces

Aequationes mathematicae - We consider the system of non-linear matrix equations (NMEs) of the form $$begin{aligned} {mathcal {X}}={mathcal {B}}_{1} + sum _{i=1}^{k}{mathcal...     

Multiphase‐Separated Polyurethanes Studied by Micro‐Raman Spectroscopy

Micro‐Raman spectroscopy has been used to investigate the chemical micro‐heterogeneity of multiphase‐separated poly(ether urethanes) (PETU). Analysis of PETU cross‐sections by means of micro‐Raman spectroscopy revealed the nearly complete absence of soft segments in AI aggregates (called globules). These aggregates are in the order of a few micrometers in size. The composition of the matrix and the AII aggregates (spherulites) was comparable.

Example of an AFM image (sample 706, scan size 25 μm, converted to monochromatic image).     

ChemInform Abstract: Single‐Crystal Structure Determination of NO2SbF6, XeF5SbF6 and XeF5Sb2F11.

The title compounds are prepared according to the literature and used for single crystal growth in a T‐shaped fluoroethylene‐hexafluoropropylene crystallization apparatus.