C
Chunyuan Deng
Researcher at South China Normal University
Publications - 63
Citations - 933
Chunyuan Deng is an academic researcher from South China Normal University. The author has contributed to research in topics: Drazin inverse & Hilbert space. The author has an hindex of 19, co-authored 60 publications receiving 828 citations. Previous affiliations of Chunyuan Deng include Shaanxi Normal University.
Papers
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A generalization of the Sherman-Morrison-Woodbury formula
TL;DR: Conditions under which the Sherman–Morrison–Woodbury formula can be represented in the Moore–Penrose inverse and the generalized Drazin inverse forms are developed.
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New additive results for the generalized Drazin inverse
Chunyuan Deng,Yimin Wei +1 more
TL;DR: In this paper, the additive properties of generalized Drazin inverse (P+Q)d in terms of P, Pd, Q and Qd were investigated under the commutative condition of PQ=QP.
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A note on the Drazin inverse of an anti-triangular matrix
Chunyuan Deng,Yimin Wei +1 more
TL;DR: In this paper, the generalized Drazin inverse M d of an anti-triangular matrix M d under some conditions is studied and some particular cases of these results are also considered.
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The Drazin inverses of sum and difference of idempotents
TL;DR: In this article, the Drazin inverses of sum and difference of idempotents on a Hilbert space are established under some conditions, and they are shown to be equivalent.
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Representations for the Drazin inverse of 2×2 block-operator matrix with singular Schur complement
Chunyuan Deng,Yimin Wei +1 more
TL;DR: In this article, the Drazin inverse of 2 × 2 block-operator matrix with generalized Schur complement was shown to be invertible, and necessary and sufficient conditions for the existence as well as the expressions for the group inverse were obtained.