Browsing Pure & Applied Mathematics by Title

Now showing items 381-390 of 390

    • Universally reversible JC*-triples and operator spaces 

      TIMONEY, RICHARD (2013)
      We prove that the vast majority of JC*-triples satisfy the condition of universal reversibility. Our characterisation is that a JC*-triple is universally reversible if and only if it has no triple homomorphisms onto Hilbert ...

    • Virasoro amplitude from the S(N) R**24 orbifold sigma model 

      FROLOV, SERGEY (Springer, 1998)
      Four tachyon scattering amplitude is derived from the SNR24 orbifold sigma model in the large N limit. The closed string interaction is described by a vertex which is a bosonic analog of the supersymmetric one, recently ...

    • Water waves and Integrability 

      IVANOV, ROSSEN (Royal Society, 2007)
      The Euler?s equations describe the motion of inviscid fluid. In the case of shallow water, when a perturbative asymtotic expansion of the Euler?s equations is taken (to a certain order of smallness of the scale parameters), ...

    • Weak*-continuity of Jordan triple products and its applications 

      TIMONEY, RICHARD (Institut for Matematiske Fag, Aarhus Universitet, 1986)

    • Weyl's theorem and tensor products: a counterexample. 

      KITSON, DEREK (Elsevier, 2011)
      Approximately fifty percent of Weyl's theorem fails to transfer from Hilbert space operators to their tensor product. As a biproduct we find that the product of circles in the complex plane is a limacon.

    • The worldsheet low-energy limit of the AdS_4 x CP^3 superstring 

      BYKOV, DMITRI (Elsevier, 2010)
      We consider the AdS_4 x CP^3 superstring sigma-model in the background of the ?spinning string? classical solution, which possesses two Noether spins. In the limit when one of the spins is infinite there are massless ...

    • Yang-Baxter integrable open quantum systems 

      Paletta, Chiara (Trinity College Dublin. School of Mathematics. Discipline of Pure & Applied Mathematics, 2023)
      The main result of this thesis is the use of the boost operator to develop a systematic method to construct new integrable spin chains with nearest-neighbour interaction and characterized by an R-matrix of non-difference ...

    • Yang-Mills instantons on the taub-NUT space and supersymmetric N=2 gauge theories with impurities 

      O'Hara, Clare (Trinity College (Dublin, Ireland). School of Mathematics, 2010)
      We write a formula for arbitrary charge calorons, instantons on R3 x S1, in terms of the Green's function of the Laplacian defined for the Nahm Transform, thus generalising the formula for the charge one caloron derived ...

    • The Zamolodchikov-Faddeev Algebra for AdS_5 x S^5 Superstring 

      FROLOV, SERGEY (2007)
      We discuss the Zamolodchikov-Faddeev algebra for the superstring sigmamodel on AdS5 ? S5. We find the canonical su(2|2)2 invariant S-matrix satisfying the standard Yang-Baxter and crossing symmetry equations. Its ...

    • A zero-mode quantization of the Skyrmion 

      HOUGHTON, CONOR JAMES (Elsevier, 2006)
      In the semi-classical approach to the Skyrme model, nuclei are approximated by quantum mechanical states on a finite-dimensional space of field configurations; in zero-mode quantization this space is generated by rotations ...