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81.
Y. M. Antipov V. A. Batarin V. A. Bessubov N. P. Budanov Y. P. Gorin Y. A. Gornushkin S. P. Denisov S. V. Klimenko I. V. Kotov P. A. Kulinich A. A. Lebedev G. V. Micelmacher A. G. Olshevski F. Palombo A. I. Petrukhin R. V. Pirtzkhalava S. A. Polovnikov V. N. Roinishvili J. Sedlak D. A. Stoyanova V. I. Travkin 《Zeitschrift fur Physik C Particles and Fields》1985,27(1):21-25
82.
83.
84.
An exact closed solution of the plane contact problem for a semi-infinite stamp is constructed for the case when the free boundary of the half-plane is under a load (problem 1), or for an analytic solution, to any prescribed accuracy, of the problem of a finite stamp impressed into an elastic half-plane under the action of a central vertical forceP (problem 2), or under the action of the above force P, a horizontal force T and a pair of forces with moment M (problem 3). In all three cases the region of contact consists of a zone of adhesion and fraction, and the stamp has a plane profile. 相似文献
85.
Yu. M. Antipov V. A. Batarin V. A. Bessubov N. P. Budanov Yu. P. Gorin S. P. Denisov I. V. Kotov P. A. Kulinich A. A. Lebedev G. V. Micelmacher A. G. Olshevski A. I. Petrukhin S. A. Polovnikov V. N. Roinishvili D. A. Stoyanova V. I. Travkin 《Zeitschrift fur Physik C Particles and Fields》1985,26(4):495-497
86.
Evgueni Vassiliev 《Annals of Pure and Applied Logic》2003,120(1-3):103-149
For a supersimple SU-rank 1 theory T we introduce the notion of a generic elementary pair of models of T (generic T-pair). We show that the theory T* of all generic T-pairs is complete and supersimple. In the strongly minimal case, T* coincides with the theory of infinite dimensional pairs, which was used in (S. Buechler, Pseudoprojective strongly minimal sets are locally projective, J. Symbolic Logic 56(4) (1991) 1184–1194) to study the geometric properties of T. In our SU-rank 1 setting, we use T* for the same purpose. In particular, we obtain a characterization of linearity for SU-rank 1 structures by giving several equivalent conditions on T*, find a “weak” version of local modularity which is equivalent to linearity, show that linearity coincides with 1-basedness, and use the generic pairs to “recover” projective geometries over division rings from non-trivial linear SU-rank 1 structures. 相似文献
87.
The construction of analogues of the Cauchy kernel is crucial for the solution of Riemann–Hilbert problems on compact Riemann
surfaces. A formula for the Cauchy kernel can be given as an infinite sum over the elements of a Schottky group, and this
sum is often used for the explicit evaluation of the kernel. In this paper a new formula for a quasi-automorphic analogue
of the Cauchy kernel in terms of the Schottky–Klein prime function of the associated Schottky double is derived. This formula
opens the door to finding new ways to evaluate the analogue of the Cauchy kernel in cases where the infinite sum over a Schottky
group is not absolutely convergent. Application of this result to the solution of the Riemann–Hilbert problem with a discontinuous
coefficient for symmetric automorphic functions is discussed.
Received: March 10, 2007. Accepted: April 11, 2007. 相似文献
88.
W. Hoffmann H. Breitzke C. T. Simmons K. Lüders G. Buntkowsky H. H. Limbach E. V. Antipov A. A. Gippius O. Loebich H. R. Khan M. Paranthaman J. R. Thompson 《Applied magnetic resonance》1995,8(1):57-65
Hg-oxide ceramic high temperature superconductors were studied by199Hg and63,65Cu NMR spectroscopy. Room temperature spectra, spin-spin and spin-lattice relaxation times of samples with different superconducting transition temperatures are presented. A spin-lattice relaxation time ofT 1=35 msec and a spin-spin relaxation time ofT 2=1.6 msec were found for the199Hg NMR. All samples exhibit similar characteristic powder spectra caused by an axially symmetric199Hg spin interaction. The isotropic value and the anisotropy of the tensor relative to solid HgCl2 as a standard substance is estimated. Furthermore, results of63,65Cu NMR measurements at a temperature of 4.2 K which exhibit a typical powder line shape (forI=3/2) are presented. 相似文献
89.
90.
Artem M Abakumov Marina G Rozova Evgeny V Antipov Gustaaf Van Tendeloo 《Journal of solid state chemistry》2004,177(8):2855-2861
The new Pb5Sb2MnO11 compound was synthesized using a solid-state reaction in an evacuated sealed silica tube at 650°C. The crystal structure was determined ab initio using a combination of X-ray powder diffraction, electron diffraction and high-resolution electron microscopy (a=9.0660(8)Å, b=11.489(1)Å, c=10.9426(9)Å, S.G. Cmcm, RI=0.045, RP=0.059). The Pb5Sb2MnO11 crystal structure represents a new structure type and it can be considered as quasi-one-dimensional, built up of chains running along the c-axis and consisting of alternating Mn+2O7 capped trigonal prisms and Sb2O10 pairs of edge sharing Sb+5O6 octahedra. The chains are joined together by Pb atoms located between the chains. The Pb+2 cations have virtually identical coordination environments with a clear influence of the lone electron pair occupying one vertex of the PbO5E octahedra. Electronic structure calculations and electron localization function distribution analysis were performed to define the nature of the structural peculiarities. Pb5Sb2MnO11 exhibits paramagnetic behavior down to T=5 K with Weiss constant being nearly equal to zero that implies lack of cooperative magnetic interactions. 相似文献