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  • 11
    Electronic Resource
    Electronic Resource
    Treading over old ground (1991)
    [s.l.] : Nature Publishing Group
    Nature 353 (1991), S. 478-479 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Reviews in Mathematical Physics. Editor-in-chief Huzihiro Araki. World Scientific. 4/yr. US $265 (institutional); $106 (personal). THE title of this new journal is perhaps unfortunate, raising expectations that are impossible to fulfil in publishing terms. The ideal review would ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/353478b0
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  • 12
    Electronic Resource
    Electronic Resource
    Summing it up (1987)
    [s.l.] : Nature Publishing Group
    Nature 330 (1987), S. 322-322 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE mathematical physicist is a jackdaw, constantly picking up bits of mathematical information; and for many of us the main source of such trinkets has long been the Encyclopedic Dictionary of Mathematics (EDM). Such tools of research are habit-forming, and I for one would now be lost without the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/330322a0
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  • 13
    Electronic Resource
    Electronic Resource
    Galileo rules, OK? (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 191-191 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is in the nature of science to question, to refuse to treat anything as unalterable dogma; and so there is nothing improper in questioning the correctness of Maxwellian electrodynamics, special relativity and general relativity, as does the author of this book. In their place he proposes ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/299191b0
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  • 14
    Electronic Resource
    Electronic Resource
    Incendiary subject (1981)
    [s.l.] : Nature Publishing Group
    Nature 293 (1981), S. 594-594 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - I must voice my grave concern that, in the influential editorial pages of Nature, reasoned argument has given way to the emotional outburst of your comment "A book for burning?" (24 September, p.245). Amid many heated adjectives you condemn Dr Sheldrake's A New Science of Life as "the best ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/293594a0
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  • 15
    Electronic Resource
    Electronic Resource
    Mathland on $17.95 (1988)
    [s.l.] : Nature Publishing Group
    Nature 336 (1988), S. 292-292 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Mathematical Tourist: Snapshots of Modern Mathematics. By Ivars Peterson. W. H. Freeman: 1988. Pp.240. $17.95, £15.95. WE RESIDENTS have an ambivalent atti-tude to tourists: pleased that they are in-terested in the locality, irritated when they trample on the flowers. But Ivars ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/336292a0
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  • 16
    Electronic Resource
    Electronic Resource
    The singular holonomy group (1978)
    Springer
    Communications in mathematical physics 58 (1978), S. 291-297 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract The “fibre” of the extension of the frame-bundle of a space-time over ab-boundary pointp is a homogeneous space ℒ/G p . It is shown thatG p can be found by a construction like that for a holonomy group, and that it contains a subgroup determined by the Riemann tensor. Near a curvature singularity one would expectG p = ℒ
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01614225
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  • 17
    Electronic Resource
    Electronic Resource
    Singular points and projective limits in relativity (1980)
    Springer
    Communications in mathematical physics 71 (1980), S. 289-297 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract We describe a modification of Schmidt's b-boundary for a space-time, using a projective limit construction. The resulting boundary provides endopoints for all incomplete inextensible curves that are not totally or partially trapped, and every boundary point is an endpoint of such a curve. Boundary points are always Hausdorff separated from interior points, and the construction gives separate past and future singularities in thek=+1, Λ=0, Friedmann cosmology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01197296
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  • 18
    Electronic Resource
    Electronic Resource
    The application of Dewitt-Morette path integrals to general relativity (1977)
    Springer
    Communications in mathematical physics 56 (1977), S. 125-146 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract The formulation of path integrals in terms of pseudomeasures by Cecile DeWitt-Morette is extended to infinite-dimensional state-spaces and to the state spaces dual to nuclear spaces appropriate to second-quantisation. In both cases a “distribution” formulation is given to allow a subsequent extension to manifolds. It is shown that the resulting theory is “correct” in that it can give rise to a wave function on state space which obeys a Schrödinger equation in appropriate circumstances. The corresponding state manifolds for quantum gravity are then defined, and the conditions under which the theory extends to them are discussed. it is shown in an appendix that the Riemannian metric required by the theory exists on one of the types of state manifold for a wide class of cases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01611499
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  • 19
    Electronic Resource
    Electronic Resource
    Some global properties of massless free fields (1977)
    Springer
    Communications in mathematical physics 55 (1977), S. 179-182 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract Elementary group-theoretical considerations show that global solutions to the massless free field equations are functions on the bundle of twistor dyads, rather than the bundle of conformal spin frames. Only in certain degenerate cases may they be thought of as ordinary spinor fields. This is the origin of the “Grgin discontinuity”.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01626519
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  • 20
    Electronic Resource
    Electronic Resource
    On the four-valuedness of twistors (1976)
    Springer
    Communications in mathematical physics 47 (1976), S. 229-231 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract The spinors on compactified Minkowski space, in terms of which twistor theory is formulated, are reallyU-spinors. In this light zero-mass fields have no Grgin discontinuity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01609842
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