نتایج جستجو برای: s alexander
تعداد نتایج: 719583 فیلتر نتایج به سال:
Emmanuel S. Buys1*, Yu-Chieh Ko2,3, Clemens Alt4, Sarah R. Hayton1, Alexander Jones2, Laurel T. Tainsh1, Ruiyi Ren5, Andrea Giani6, Maeva Clerte’7, Emma Abernathy2, Robert E. T. Tainsh1, Dong-Jin Oh6, Rajeev Malhotra7, Pankaj Arora7, Nadine de Waard2, Binglan Yu1, Raphael Turcotte4,8, Daniel Nathan1, Marielle Scherrer-Crosbie7, Stephanie J. Loomis6, Jae H. Kang9, Charles P. Lin4, Haiyan Gong5, ...
J. P. Alexander, R. Baker, C. Bebek, B. E. Berger, K. Berkelman, K. Bloom, V. Boisvert, D. G. Cassel, D. S. Crowcroft, M. Dickson, S. von Dombrowski, P. S. Drell, K. M. Ecklund, R. Ehrlich, A. D. Foland, P. Gaidarev, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, J. Kandaswamy, P. C. Kim, D. L. Kreinick, T. Lee, Y. Liu, N. B. Mistry, C. R. Ng, E....
By considering a (not necessarily locally-flat) PL knot as the singular locus of a PL stratified pseudomanifold, we can use intersection homology theory to define intersection Alexander polynomials, a generalization of the classical Alexander polynomial invariants for smooth or PL locally-flat knots. We show that the intersection Alexander polynomials satisfy certain duality and normalization c...
S. Müller analyses lexicon entries referring to ancient Persia, including both traditional academic reference works such as Paulys Realencyclopadie der Classischen Altertumswissenschaft and more recent children’s encyclopaedias. She points out the tenacity of commonplaces emerging in 19th century, an interpretation Persian war battle between freedom tyranny alleged civilizing drive Alexander Gr...
A knot in S 3 whose complement contains an essential** torus is called a satellite knot. In this paper we discuss algebraic invariants of satellite knots, giving short proofs of some known results as well as new results. To each essential torus in the complement of an oriented satellite knot S , one may associate two oriented knots C and E (the companion and embellishment) and an integer w (the...
Freedman, Lovász and Schrijver characterized graph parameters that can be represented as the (weighted) number of homomorphisms into a fixed graph. Several extensions of this result have been proved. We use the framework of categories to prove a general theorem of this kind. Similarly as previous resuts, the characterization uses certain infinite matrices, called connection matrices, which are ...
For a prime p and binomial axk+bxl with 1 ≤ l < k < 1 32 (p−1) 2 3 , we use Stepanov’s method to obtain the bound ∣∣∣∣∣ p−1 ∑ x=1 ep(ax k + bx) ∣∣∣∣∣ max { 1, l∆− 1 3 } 1 4 k 1 4 p 3 4 , where ∆ = k−l (k,l,p−1) .
Alexander disease is a fatal neurological illness characterized by white-matter degeneration and formation of Rosenthal fibers, which contain glial fibrillary acidic protein as astrocytic inclusion. Alexander disease is mainly caused by a gene mutation encoding glial fibrillary acidic protein, although the underlying pathomechanism remains unclear. We established induced pluripotent stem cells ...
A s Sherman (this issue) notes, I tried (Alexander 1990) to determine “the extent to which social learning, especially without self-reference, can account for the kin recognition findings of different investigators with different organisms . . . (p. 273). I had two motivations. First, I have had difftculty modeling the evolution of kin recognition via mechanisms that can function in the absence...
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