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91.
Ionel Popescu 《Journal of Functional Analysis》2006,235(1):1-68
In this paper we prove the Morse inequalities in the non-degenerate and degenerate cases. Like the approach of J.-M. Bismut, ours is based on the idea suggested by Witten. In fact, if anything, our approach is closer to Witten's original idea than Bismut's. 相似文献
92.
Carole Fraschini Rodica Plesu Jose‐Ramon Sarasua Robert E. Prud'homme 《Journal of Polymer Science.Polymer Physics》2005,43(22):3308-3315
A polylactide of high optical purity was crystallized between 100 and 140 °C, in‐between two glass slides, and its morphology was investigated by polarizing optical microscopy, scanning electron microscopy, and atomic force microscopy, during subsequent heating and cooling cycles between ?15 °C and the crystallization temperature. It was found that dark circular rings show up on cooling on top of the spherulites and represent cracks of about 300 nm in width. This phenomenon is completely reversible, and the heating–cooling curves are centered at about 56 °C, which coincide with the Tg of polylactide. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 43: 3308–3315, 2005 相似文献
93.
We prove that there is a Poincaré type duality in E-theory between higher rank graph algebras associated with a higher rank graph and its opposite correspondent. We obtain an
r-duality, that is the fundamental classes are in Er. The basic tools are a higher rank Fock space and higher rank Toeplitz algebra which has a more interesting ideal structure
than in the rank 1 case. The K-homology fundamental class is given by an r-fold exact sequence whereas the K-theory fundamental class is given by a homomorphism. The E-theoretic products are essentially pull-backs so that the computation is done at the level of exact sequences.
Mathematics Subject Classification (2000): 46L80. 相似文献
94.
95.
96.
T. Badica S. Dima A. Gelberg I. Popescu 《Zeitschrift für Physik A Hadrons and Nuclei》1972,249(4):321-326
Angular correlation measurements of the γ transitions coincident with 35.5 keV in125Te were carried out with Ge(Li)-Si(Li) detectors. Mixing ratios for some of the transitions were determined. 相似文献
97.
Rodica Simion 《Discrete Mathematics》1984,49(1):89-93
In this paper it is shown that the lattice Ln of partitions of n under the dominance ordering is totally asymmetric, except for the cases n = 6 and 7 where the automorphism group is 2 × 2. As a consequence, partition conjugation is the only antiautomorphism of Ln if n ≠ 6, 7. 相似文献
98.
E. Drǎgulescu M. Ivaşcu R. Mihu D. Popescu G. Semenescu V. Paar D. Vretenar 《Nuclear Physics A》1984,419(1):148-162
The low-lying states of 143Nd and 154Nd have been studied by means of Coulomb excitation with 16O and α-particles. Angular distribution measurements were carried out for some transitions in 145Nd with 11.2 MeV α-particles. Level energy decay schemes and B(E2)↑ values were measured for two states in 143Nd and for six states in 145Nd. Some spin assignments have been established for the 145Nd nucleus. 143Nd and 145Nd have been theoretically described by coupling one and three particles, respectively, to quadrupole vibrations, and rather good agreement with experiment was achieved. 相似文献
99.
100.