The diffeomorphism type of certain $S^{3}$-bundles over $S^{4}$
نویسندگان
چکیده
منابع مشابه
Critical roles of the S3 segment and S3-S4 linker of repeat I in activation of L-type calcium channels.
Each of the four repeats (or motifs) of voltage-gated ion channels is thought to contain six transmembrane segments (S1-S6). Mutational analyses indicate that S4 functions as a voltage sensor and that the S5, S6, and S5-S6 linker contribute to formation of the ion pore. However, little information exists regarding the functional role(s) of the amino-terminal portion (S1-S3-S4 linker) of the rep...
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Automorphisms of Certain Projective Bundles over Toric Varieties
The purpose of this note is to exhibit the automorphism group of a projective bundle P(E) over a simplicial toric variety X when the bundle E is a direct sum of equvariant line bundles. This case is important in the study of moduli of complete intersections on toric varieties including projective spaces. The main result is that the automorphism group of P (E) is, up to a finite group, the semi-...
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The sulfur molecules thiozone S3 and tetrasulfur S4 have been observed in a supersonic molecular beam in the centimeter-wave band by Fourier transform microwave spectroscopy, and in the millimeter- and submillimeter-wave bands in a low-pressure glow discharge. For S3 over 150 rotational transitions between 10 and 458 GHz were measured, and for S4 a comparable number between 6 and 271 GHz. The s...
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An explicit resolution of the diagonal over V22 is given, making use of some observations about instanton bundles with c2 = 3. Different descriptions of V22 are interpreted in terms of mutations of vector bundles.
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 2001
ISSN: 0002-9939,1088-6826
DOI: 10.1090/s0002-9939-01-06380-8