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math.NA2022★ 1 cited
A posteriori error bounds for the block-Lanczos method for matrix function approximation
Qichen Xu, Tyler Chen
We extend the error bounds from [SIMAX, Vol. 43, Iss. 2, pp. 787-811 (2022)] for the Lanczos method for matrix function approximation to the block algorithm. Numerical experiments…
cond-mat.mtrl-sci2022★ 1 cited
Tuning skyrmions in B20 compounds by 4d and 5d doping
Vladislav Borisov, Qichen Xu, Nikolaos Ntallis +10
Skyrmion stabilization in novel magnetic systems with the B20 crystal structure is reported here, primarily based on theoretical results. The focus is on the effect of alloying on…