Helfer, Adam D. The physics of negative energy densities. (English) Zbl 1032.81558 Bordag, Michael (ed.), The Casimir effect 50 years later. Proceedings of the fourth workshop on quantum field theory under the influence of external conditions, Leipzig, Germany, September 14-18, 1998. Singapore: World Scientific. 317-326 (1999). MSC: 81T99 PDFBibTeX XMLCite \textit{A. D. Helfer}, in: The Casimir effect 50 years later. Proceedings of the fourth workshop on quantum field theory under the influence of external conditions, Leipzig, Germany, September 14--18, 1998. Singapore: World Scientific. 317--326 (1999; Zbl 1032.81558) Full Text: arXiv
Helfer, A. D. A formula for the local solution of the self-dual Yang-Mills equations. (English) Zbl 0629.58032 Proc. R. Soc. Lond., Ser. A 414, 135-147 (1987). Reviewer: A.Stone MSC: 58J99 81T99 53C05 PDFBibTeX XMLCite \textit{A. D. Helfer}, Proc. R. Soc. Lond., Ser. A 414, 135--147 (1987; Zbl 0629.58032) Full Text: DOI