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- N Arkani-Hamed, F Cachazo, C Cheung, J Kaplan
- 2014

We propose a dual formulation for the S Matrix of N = 4 SYM. The dual provides a basis for the " leading singularities " of scattering amplitudes to all orders in perturbation theory, which are sharply defined, IR safe data that uniquely determine the full amplitudes at tree level and 1-loop, and are conjectured to do so at all loop orders. The scattering… (More)

- N Arkani-Hamed, F Cachazo, C Cheung, J Kaplan
- 2009

We propose a dual formulation for the S Matrix of N = 4 SYM. The dual provides a basis for the " leading singularities " of scattering amplitudes to all orders in perturbation theory, which are sharply defined, IR safe data that uniquely determine the full amplitudes at tree level and 1-loop, and are conjectured to do so at all loop orders. The scattering… (More)

- Raymond H. Chan, Chun-pong Cheung, Hai-Wei Sun
- WNAA
- 1996

In this paper, we study an ill-posed, nonlinear inverse problem in heat conduction and hy-drology applications. In 2], the problem is linearized to give a linear integral equation, which is then solved by the Tikhonov method with the identity as the regularization operator. We prove in this paper that the resulting equation is well-condition and has… (More)

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