TY - JOUR
T1 - Some Refined Eigenvalue Perturbation Bounds for Two-by-Two Block Hermitian Matrices
AU - Xianping Wu, Wen Li & Xiaofei Peng
JO - East Asian Journal on Applied Mathematics
VL - 2
SP - 126
EP - 137
PY - 2018
DA - 2018/02
SN - 5
DO - http://doi.org/10.4208/eajam.201114.150315a
UR - https://global-sci.org/intro/article_detail/eajam/10784.html
KW - Eigenvalue perturbation, Hermitian block matrix, Weyl bound.
AB - <p style="text-align: justify;">We consider eigenvalue perturbation bounds for Hermitian matrices, which
are associated with problems arising in various computational science and engineering
applications. New bounds are discussed that are sharper than some existing ones,
including the well-known Weyl bound. Two numerical examples are investigated, to
illustrate our theoretical presentation.</p>