Báo cáo toán học: "Separability Number and Schurity Number of Coherent

Báo cáo toán học: "Fredholm operators and the continuity of the Lefschetz number " potx

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Báo cáo toán học: "DETERMINANT IDENTITIES AND A GENERALIZATION OF THE NUMBER OF TOTALLY SYMMETRIC SELF-COMPLEMENTARY PLANE PARTITIONS" pptx

... inductive proof of the determinant evaluationin Theorem 10 (and also of its q-analogue in [9]), and could also be used to give aninductive proof of the determinant evaluation in Theorem 8 (and its ... theconstant term on the left-hand side of (1.1) into a sum of minors of a particular matrix(by a result [16, Corollary D=C] of Zeilberger), which is known to equal the number of totally symmetric self-complementary ... (2n)×(2n)×(2n)box (by a result of Doran [4, Theorem 4.1 + Proof 2 of Theorem 5.1]). The number of these plane partitions had been calculated by Andrews [1] by transforming the sum of minors into a single...

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Báo cáo toán học: " The structural and optical properties of GaSb/InGaAs type- quantum dots grown on InP (100) substrate" ppt

... the height of GaSb/In0.53Ga0.47As QDs. (a) The AFM image of GaSb/In0.53Ga0.47As QDs, (b) histogram of the height of GaSb/In0.53Ga0.47As QDs, and (c) the STEM image of GaSb/In0.53Ga0.47As ... dependence of the PL peak energies over the third root of the excitation density [20]. The inset of Figure 3b shows the linear dependence of the PL peak energies and the third root of the excitation ... independent of the excitation power which is a typical feature of the type-I band transition. Therefore, the interband transition of the GaSb QD would be the only proper origin of the high-energy...

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Báo cáo toán học: " Structural, optical and magnetic studies of manganese-doped zinc oxide hierarchical microspheres by self-assembly of nanoparticles" docx

... elements of Zn, Mn, O, and adventitious C (a). The high-resolution XPS spectra of Zn (b) and Mn (c) species. Figure 4. Illustration of the formation process. Figure 5. Raman scattering (a) and ... well [31]. The XPS data of Zn2p and Mn2p further provide evidences for the incorporation of Mn2+ ions into ZnO. To obtain a better understanding of the formation of Mn-doped ZnO HMSs, a ... stretching mode of ZnO [29]. However, in the case of the Zn1−xMnxO HMSs (x =0.02, 0.05, and 0.07), the values of absorption bands are found to be blueshifted at 438, 445, and 456 cm−1,...

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Báo cáo toán học: "Chemical composition and antibacterial activity of the essential oils from Launaea resedifolia L." docx

... herbarium under the number NG 27. 2.1. Isolation of essential oils An aliquot of 200 g of the visible parts of L. resedifolia was cut into pieces, air-dried under shade, and subjected to hydrodistillation ... the best of the authors’ knowledge, there are no reports about the chemical content and biological effect of the essential oils of L. resedifolia. There no reports on the essential oils of the ... necessity and in this regard, plant essential oils may offer a great potential and hope. Several studies have reported the efficacy of antibacterials obtained from the essential oils of various...

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Báo cáo toán học: "Antioxidant, antimicrobial, and theoretical studies of the thiosemicarbazone derivative Schiff base 2-(2-imino-1-methylimidazolidin-4-ylidene)hydrazinecarbothioamide (IMHC)" potx

... of some bioactive compounds such as ß-lactams [16–18], and employed as ligands for the complexation of metal ions [19]. SBs and their complexes are largely studied because they interested and ... functional group of IMHC. The appearance of a broad strong band in the IR spectra of IMHC in 3421 cm–1 is assigned to N–H stretching vibrations of the primary amine group. The spectrum of IMHC shows ... state is demonstrated by the presence of two absorption bands at 1273.7 and 3421 cm−1 belonging to the C=S and NH groups, respectively, and by absence of SH. Density functional theory (DFT)...

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Báo cáo toán học: "Contraction semigroups and the spectrum of $A_1 otimes I + I otimes A_2$ " pps

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Báo cáo toán học: "Redheffer products and the lifting of contractions on Hilbert space " pot

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Báo cáo toán học: "Curvature inequalities and extremal properties of bundle shifts " docx

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Báo cáo toán học: "Controllability Radii and Stabilizability Radii of Time-Invariant Linear Systems" pot

... of Mathematics 34:4 (2006) 495–499Short CommunicationsControllability Radii and Stabilizability Radii of Time-Inv ariant Linear SystemsD. C. Khanh and D. D. X. ThanhDept. of Info. Tech. and ... in the end of Sec. 3. And we also answer for the498 D. C. Khanh and D. D. X. ThanhThe stabilizability radii of system (3.1) of the feedback matrix F with thepertubation on• both A and B are ... B),rA=minλ∈Cσmin(A∗−λI)KB,rB=minλ∈σ(A)σmin(B∗Kλ),where KB and Kλare the matrices representing KerB and Ker(A∗− λI), and the formula of rABis the result obtained in [4].By the deﬁnitions, it is clear that rAB≤ min{rA,rB}, and the...

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Báo cáo toán học: "Separability Number and Schurity Number of Coherent Conﬁgurations" ppt