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11 papers · 1 filter
Homological Algebra and Divergent Series
Vassily Gorbounov, Vadim Schechtman
We study some features of infinite resolutions of Koszul algebras motivated by the developments in the string theory initiated by Berkovits.
Chemical Tuning of Positive and Negative Magnetoresistances, and Superconductivity in 1222-type Ruthenocuprates
A. C. Mclaughlin, L. Begg, C. Harrow +3
High critical-temperature superconductivity and large (colossal) magnetoresistances are two important electronic conducting phenomena found in transition metal oxides. High-Tc mate…
Induced antiferromagnetism and large magnetoresistances in RuSr2(Nd,Y,Ce)2Cu2O10-d ruthenocuprates
A. C. Mclaughlin, F. Sher, S. A. J. Kimber +1
RuSr2(Nd,Y,Ce)2Cu2O10-d ruthenocuprates have been studied by neutron diffraction, magnetotransport and magnetisation measurements and the electronic phase diagram is reported. Sepa…
An elementary construction of Anick's fibration
Brayton Gray, Stephen Theriault
Cohen, Moore, and Neisendorfer's work on the odd primary homotopy theory of spheres and Moore spaces, as well as the first author's work on the secondary suspension, predicted the…
Obstruction theory on 8-manifolds
Martin Cadek, Michael Crabb, Jiri Vanzura
This note gives a uniform, self-contained, and fairly direct approach to a variety of obstruction-theoretic problems on 8-manifolds. We give necessary and sufficient cohomological…
On the endomorphism algebra of modular Gelfand-Graev representations
Cédric Bonnafé, Radha Kessar
We study the endomorphism algebras of a modular Gelfand-Graev representation of a finite reductive group by investigating modular properties of homomorphisms constructed by Curtis…