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hep-th2005
Quantum field theory on manifolds with a boundary
Z. Haba
We discuss quantum theory of fields ϕdefined on (d+1)-dimensional manifold {\cal M} with a boundary {\cal B}. The free action W_{0}(ϕ) which is a bilinear form in ϕdefines the Gaus…
math-ph2005
Estimates on Green functions of second order differential operators with singular coefficients
Z. Haba
We investigate the Green functions G(x,x^{\prime}) of some second order differential operators on R^{d+1} with singular coefficients depending only on one coordinate x_{0}. We expr…