Results 41 to 50 of about 2,437,992 (325)
Natural Symmetries of the Yang-Mills Equations [PDF]
, 1994 We define a natural generalized symmetry of the Yang-Mills equations as an infinitesimal transformation of the Yang-Mills field, built in a local, gauge invariant, and Poincar\'e invariant fashion from the Yang-Mills field strength and its derivatives to
Torre, C. G.
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Дифференциальная геометрия многообразий фигур, 2021 The theory of tangent bundles over a differentiable manifold M belongs to the geometry and topology of manifolds and is an intensively developing area of the theory of fiber spaces. The foundations of the theory of fibered spaces were laid in the works
A. Ya. Sultanov +2 more
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Covariant Hamiltonian Field Theory
, 2008 A consistent, local coordinate formulation of covariant Hamiltonian field theory is presented. Whereas the covariant canonical field equations are equivalent to the Euler-Lagrange field equations, the covariant canonical transformation theory offers more
ANDREAS REDELBACH +8 more
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Canonoid and Poissonoid Transformations, Symmetries and BiHamiltonian Structures [PDF]
, 2015 We give a characterization of linear canonoid transformations on symplectic manifolds and we use it to generate biHamiltonian structures for some mechanical systems.
Rastelli, Giovanni, Santoprete, Manuele
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Covariant four dimensional differential calculus in κ-Minkowski
Physics Letters B, 2022 It is generally believed that it is not possible to have a four dimensional differential calculus in κ-Minkowski spacetime, with κ-Poincaré relativistic symmetries, covariant under (κ-deformed) Lorentz transformations.
Giacomo Rosati
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Equivalence between two different field-dependent BRST formulations
, 2015 Finite field-dependent BRST (FFBRST) transformations were constructed by integrating infinitesimal BRST transformation in a closed form. Such a generalized transformations have been extended in various branch of physics and found many applications ...
Mandal, Bhabani Prasad +1 more
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FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Making Sense of Singular Gauge Transformations in 1+1 and 2+1 Fermion Models [PDF]
, 1999 We study the problem of decoupling fermion fields in 1+1 and 2+1 dimensions, in interaction with a gauge field, by performing local transformations of the fermions in the functional integral.
C.D. Fosco +4 more
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On the foundations of general infinitesimal geometry
, 1929 In connection with a seminar on infinitesimal geometry in Princeton, in which I took part, it seemed desirable to clarify the relations between the work of the Princeton school and that of Cartan.
H. Weyl
semanticscholar +1 more source