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101.
Chronicle
Andre $\overset{\lower0.5em\hbox{$\overset{\lower0.5em\hbox{ Viktorovich Gaponov-Grekhov (On his 75th birthday) 相似文献102.
We introduce and study a classl
1
dom
(ρ) ofl
1-embeddable metrics corresponding to a given metric ρ. This class is defined as the set of all convex combinations of ρ-dominated
line metrics. Such metrics were implicitly used before in several constuctions of low-distortion embeddings intol
p
-spaces, such as Bourgain’s embedding of an arbitrary metric ρ onn points withO(logh) distortion. Our main result is that the gap between the distortions of embedding of a finite metric ρ of sizen intol
2 versus intol
1
dom
(ρ) is at most
, and that this bound is essentially tight. A significant part of the paper is devoted to proving lower bounds on distortion
of such embeddings. We also discuss some general properties and concrete examples.
Research by J. M. supported by Charles University grants No. 158/99 and 159/99. Part of the work by Y. R. was done during
his visit at the Charles University in Prague partially supported by these grants, by the grant GAČR 201/99/0242, and by Haifa
University grant for Promotion of Research. 相似文献
103.
Mihalcik DJ White JL Tanski JM Zakharov LN Yap GP Incarvito CD Rheingold AL Rabinovich D 《Dalton transactions (Cambridge, England : 2003)》2004,(10):1626-1634
The paramagnetic complexes (TmtBu)CoX (X = Cl, Br, I) have been readily prepared and structurally characterized and provide a convenient entry into cobalt(II) tris(mercaptoimidazolyl)borate chemistry. A number of derivatives, including mononuclear triphenylphosphine adducts [(TmtBu)Co(PPh3)]X and dinuclear compounds [Co2(TmtBu)2X]Y, have been prepared in order to ascertain whether cobalt is a reliable surrogate for zinc in biological systems, particularly in sulfur-rich coordination environments. The structure of the first cobaltaboratrane is also reported. 相似文献
104.
105.
Selma Bakbak Vinay K. Bhatia Christopher D. Incarvito Arnold L. Rheingold Daniel Rabinovich 《Polyhedron》2001,20(28):173-3348
The sodium salts of the tris(2-mercapto-1-benzylimidazolyl)borate [TmBz]− and tris(2-mercapto-1-p-tolylimidazolyl)borate [Tmp-Tol]− anions have been readily prepared in very good yield from NaBH4 and 2-mercapto-1-benzylimidazole or 2-mercapto-1-p-tolylimidazole, respectively. These new monoanionic tripodal sulfur-donor ligands have been used to prepare the Group 12 derivatives (TmR)MBr (M=Zn, Cd; R=Bz, p-Tol), all of which have been characterized by a combination of analytical and spectroscopic techniques, including electrospray ionization mass spectrometry (ESI MS) and, in the case of both benzyl-substituted derivatives, single-crystal X-ray diffraction. 相似文献
106.
107.
Rabinovich Alexander Nirenberg Gary Kocagoz Sezgi Surace Mikaela Sales Christopher Fridman Alexander 《Plasma Chemistry and Plasma Processing》2022,42(1):35-50
Plasma Chemistry and Plasma Processing - Scaling up of transitional “warm” plasmas to industrial level gives possibility to develop plasma systems that combine advantages of thermal and... 相似文献
108.
Yu. K. Tovbin A. B. Rabinovich E. E. Gvozdeva 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2014,88(10):1809-1812
A molecular model of adsorbate melting in slit-like pores [1] is used to calculate adsorption isotherms with regard to the contribution from vibrational motions of the adsorbate. The equations are based on discrete distribution functions (the lattice gas model). Molecular distributions are calculated in a quasi-chemical approximation reflecting the effects of direct correlations of interacting particles using the Lennard-Jones potential. The vibrational motion of molecules is taken into account using a modified quasi-dimer Mie model. It is shown that considering vibrations shifts the adsorption isotherms in the chemical potential-density coordinates to higher vapor pressures in the region of high filling. This is due to the need for additional compression of the vapor to transfer it into the adsorbed state with increased kinetic energy. 相似文献
109.
Pruessner MW Khurgin JB Stievater TH Rabinovich WS Bass R Boos JB Urick VJ 《Optics letters》2011,36(12):2230-2232
We experimentally demonstrate a new type of add-drop filter incorporating an asymmetric Y-branch waveguide coupler and a shifted-grating mode-conversion cavity. The device relies on mode separation in the asymmetric Y-branch and wavelength-selective mode conversion upon reflection from the shifted-grating cavity. Add-drop functionality is demonstrated in a three-port integrated silicon-on-insulator device. 相似文献
110.