Deformation quantization of Poisson manifolds is studied within the framework of an expansion in powers of derivatives of Poisson structures. We construct the Lie group associated with a Poissonâ€¦ (More)

We use the conformal Ward identities to study the structure of correlation functions in coset conformal field theories. For a large class of primary fields of arbitrary g/h theory a factorizationâ€¦ (More)

New realizations of observables in dynamical systems with second class constraints. Abstract In the Dirac bracket approach to dynamical systems with second class constrains the observables areâ€¦ (More)

We use the conformal Ward identities to study the structure of correlation functions in coset conformal field theories. For a large class of primary fields of arbitrary g/h theory a factorizationâ€¦ (More)

In a Hamiltonian system with first class constraints observables can be defined as elements of a quotient Poisson bracket algebra. In the gauge fixing method observables form a quotient Dirac bracketâ€¦ (More)

Generalized inversion of the Hochschild coboundary operator and deformation quantization. Abstract Using a derivative decomposition of the Hochschild differential complex we define a generalizedâ€¦ (More)

Solutions of classical and quantum equations of motion in spinor electrodynamics are constructed within the context of perturbation theory. The solutions possess a graphical representation in termsâ€¦ (More)

Local tumor control is of great importance in the definitive treatment of prostatic carcinoma. Not only is it the best measure of radiation efficacy but its significance in terms of the relatedâ€¦ (More)

Generalized inversion of the Hochschild coboundary operator and deformation quantization. Abstract Using a derivative decomposition of the Hochschild differential complex we define a generalizedâ€¦ (More)