Korpusov, M. O.; Mikhailenko, S. G. (2016). Blowup of the solution to the Cauchy problem with arbitrary positive energy for a system of Klein–Gordon equations in the de Sitter metric. Computational Mathematics and Mathematical Physics, 56(10), 1758–1762.
doi:10.1134/s0965542516100122
url to share this paper:
An interview with Sci-Hub Founder Alexandra Elbakyan Who exactly should pay for academic research