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Space of test functions for higher-order field theories (1994)

Bollini, C. G. ; Oxman, L. E. ; Rocca, M.

College Park, Md. : American Institute of Physics (AIP)

Journal of Mathematical Physics 35 (1994), S. 4429-4438

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ISSN: 1089-7658

Source: AIP Digital Archive

Topics: Mathematics , Physics

Notes: The fundamental space ζ is defined as the set of entire analytic functions [test functions cursive-phi(z)], which are rapidly decreasing on the real axis. The variable z corresponds to the complex energy plane. The conjugate or dual space ζ' is the set of continuous linear functionals (distributions) on ζ. Among those distributions are the propagators, determined by the poles implied by the equations of motion and the contour of integration implied by the boundary conditions. All propagators can be represented as linear combinations of elementary (one pole) functionals. The algebra of convolution products is also determined. The Fourier transformed space ζ˜ contains test functions cursive-phi˜(x). These functions are extra-rapidly decreasing, so that the exponentially increasing solutions of higher-order equations are distributions on ζ˜.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.530862

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