278 research outputs found
Spectral multiplicity for powers of weakly mixing automorphisms
We study the behavior of maximal multiplicities for the powers of
a weakly mixing automorphism . For some special infinite set we show the
existence of a weakly mixing rank-one automorphism such that
and for all . Moreover, the cardinality
of the set of spectral multiplicities for is not bounded. We have
and , , . We
also construct another weakly mixing automorphism with the following
properties: for but ,
all powers have homogeneous spectrum, and the set of limit points of
the sequence is infinite
Study of the dependence of Young's modulus of vertically aligned carbon nanotubes on their aspect ratio
The reported study was funded by RFBR according to the research projects No.16-29-14023 ofi_m, No.18-32-00652 and by grant of the Southern Federal University (project No. VnGr-07/2017-26)
Study of the surface profiling of silicon based on the method of local anodic oxidation using scanning probe microscopy
Вплив поліпропіленової фібри на властивості цементно-піщаних ремонтних розчинів
It is given the results of studies of physical and mechanical properties of the cement-sand mortar, modified polypropylene fibers for concrete repair and restoration of waterworks Water Management and reclamation complexНаведено результати досліджень фізико-механічних властивостей цементно-піщаних розчинів, модифікованих поліпропіленовою фіброю для ремонту та відновлення залізобетонних гідротехнічних споруд водогосподарсько-меліоративного комплекс
Masking layer formation on silicon substrate by the focused ion beams method for plasma-chemical treatment
Influence of the focused ion beam parameters on the etching of planar nanosized multigraphene/SiC field emitters
The equipment of the Collective Usage Center “Nanotechnologies” and the Research and Educational Center "Nanotechnologies" of Southern Federal University was used for this study. This work was funded by Internal grant of Southern Federal University No. VnGr-07/2017-26
Investigation of the effect of upper electrode material on the memristor properties of strained carbon nanotubes
The reported study was funded by RFBR according to the research project No. 16-29-14023 ofi_m
Effect of thickness on the piezoelectric properties of LiNbO3 films
The results were obtained using the equipment of Research and Education Center and the Center of collective use “Nanotechnology” of Southern Federal University
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