Results 71 to 80 of about 2,430,073 (342)
Symmetries of K3 sigma models [PDF]
Communications in Number Theory and Physics, 2012 It is shown that the supersymmetry-preserving automorphisms of any non-linear sigma-model on K3 generate a subgroup of the Conway group Co_1. This is the stringy generalisation of the classical theorem, due to Mukai and Kondo, showing that the symplectic automorphisms of any K3 manifold form a subgroup of the Mathieu group M_{23}. The Conway group Co_1
Gaberdiel, Matthias R. +2 more
openaire +4 more sources
Nonlinear Grassmann Sigma Models in Any Dimension and An Infinite Number of Conserved Currents [PDF]
, 1998 We first consider nonlinear Grassmann sigma models in any dimension and next construct their submodels. For these models we construct an infinite number of nontrivial conserved currents.
Ferretti +9 more
core +2 more sources
Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms
FEBS Letters, EarlyView.Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze +3 more
wiley +1 more source
Quasicomplex N=2, d=1 Supersymmetric Sigma Models
Symmetry, Integrability and Geometry: Methods and Applications, 2013 We derive and discuss a new type of N=2 supersymmetric quantum mechanical sigma models which appear when the superfield action of the (1,2,1) multiplets is modified by adding an imaginary antisymmetric tensor to the target space metric, thus completing ...
Evgeny A. Ivanov, Andrei V. Smilga
doaj +1 more source
Poisson Sigma Model on the Sphere [PDF]
Communications in Mathematical Physics, 2008 38 ...
Maxim Zabzine, Francesco Bonechi
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Integrable deformations of sigma models [PDF]
Journal of Physics A: Mathematical and Theoretical, 2022 Abstract In this pedagogical review we introduce systematic approaches to deforming integrable two-dimensional sigma models. We use the integrable principal chiral model and the conformal Wess–Zumino–Witten model as our starting points and explore their Yang–Baxter and current–current deformations.
openaire +3 more sources
Relativistic Mean-Field Models and Nuclear Matter Constraints
, 2013 This work presents a preliminary study of 147 relativistic mean-field (RMF) hadronic models used in the literature, regarding their behavior in the nuclear matter regime.
Avancini, S. S. +8 more
core +1 more source
FEBS Letters, EarlyView.α2 → 8 polysialic acid elicits poor immunogenicity. Small‐angle scattering shows a supramolecular structure with parallel‐chain binding, although in different forms at μm and mm calcium. The major histocompatibility complex requires molecular weights around 2000 Da to produce antibodies, and 2000 Da polysialic oligomers will bind in these structures ...
Kenneth A. Rubinson
wiley +1 more source
Summing inflationary logarithms in nonlinear sigma models
Journal of High Energy Physics, 2022 We consider two nonlinear sigma models on de Sitter background which involve the same derivative interactions as quantum gravity but without the gauge issue.
S. P. Miao, N. C. Tsamis, R. P. Woodard
doaj +1 more source
Integrable coupled sigma-models [PDF]
, 2018 5 pages, examples ...
Delduc, Francois +3 more
openaire +4 more sources