Qingxiang Xu

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All published works

Action	Title	Year	Authors
+	The strong range inclusion and the parallel sum for adjointable operators on Hilbert <i>C</i> *-modules	2025	Xiaofeng Zhang Xiaoyi Tian Qingxiang Xu
+	The parallel sum in <i>C*</i> -algebras	2024	Ali Zamani Hasan Karimi Qingxiang Xu
+	The generalized polar decomposition, the weak complementarity and the parallel sum for adjointable operators on Hilbert $$C^*$$-modules	2024	Xiaofeng Zhang Xiaoyi Tian Qingxiang Xu
+ PDF Chat	Separated Pairs of Submodules in Hilbert $C^*$-modules	2024	R. Eskandari Wenzhi Luo Mohammad Sal Moslehian Qingxiang Xu Zhang Hai
+ PDF Chat	Semi-harmonious and harmonious quasi-projection pairs on Hilbert $C^*$-modules	2024	Xiaoyi Tian Qingxiang Xu Chunhong Fu
+ PDF Chat	The operator distances from projections to an idempotent	2024	Xiaofeng Zhang Xiaoyi Tian Qingxiang Xu
+	The maximum operator distance from an idempotent to the set of projections	2024	Xiaofeng Zhang Xiaoyi Tian Qingxiang Xu
+ PDF Chat	Some inequalities for adjointable operators in Hilbert $C^*$-modules	2024	Mohammad Sababheh Hamid Reza Moradi Qingxiang Xu Shuo Zhao
+ PDF Chat	The Frobenius distances from projections to an idempotent matrix	2024	Xiaoyi Tian Qingxiang Xu Chunhong Fu
+	Some remarks on the norm upper bounds associated with the generalized polar decompositions of matrices	2023	Dingyi Du Chunhong Fu Qingxiang Xu
+	Norm Inequalities Associated with Two Projections	2023	Xiaoyi Tian Qingxiang Xu Xiaofeng Zhang
+ PDF Chat	C-Isomorphisms Associated with Two Projections on a Hilbert C-Module	2023	Chunhong Fu Qingxiang Xu Guanjie Yan
+ PDF Chat	Publisher Correction: The $$(n+1)$$-centered operator on a Hilbert $$C^*$$-module	2023	Na Liu Qingxiang Xu Xiaofeng Zhang
+ PDF Chat	The $$(n+1)$$-centered operator on a Hilbert $$C^*$$-module	2023	Na Liu Qingxiang Xu Xiaofeng Zhang
+	The generalized polar decomposition, the weak complementarity and the parallel sum for adjointable operators on Hilbert $C^*$-modules	2023	Xiaofeng Zhang Xiaoyi Tian Qingxiang Xu
+ PDF Chat	The polar decomposition of the product of three operators	2022	Dingyi Du Qingxiang Xu Shuo Zhao
+	Pedersen–Takesaki operator equation and operator equation AX = B in Hilbert C⁎-modules	2022	Rasoul Eskandari Xiaochun Fang Mohammad Sal Moslehian Qingxiang Xu
+	Norm Estimations for the Moore-Penrose Inverse of the Weak Perturbation of Hilbert C ∗-Module Operators	2022	Chunhong Fu Dingyi Du L.J. Huang Qingxiang Xu
+	Characterizations of the harmonious pairs of projections on a Hilbert <i>C</i>*-module	2021	Chunhong Fu Qingxiang Xu Guanjie Yan
+	Upper bounds and lower bounds for the Frobenius norm of the solution to certain structured Sylvester equation	2021	Chunhong Fu Jiajia Chen Qingxiang Xu
+	Numerical Radius Inequalities Concerning with Algebra Norms	2021	Ali Zamani Mohammad Sal Moslehian Qingxiang Xu Chunhong Fu
+ PDF Chat	Some upper bounds for the $$\mathbb {A}$$-numerical radius of $$2\times 2$$ block matrices	2020	Qingxiang Xu Zhongming Ye Ali Zamani
+	A Note on Perturbation Estimations for Spectral Projectors	2020	Chuanning Song Yimin Wei Qingxiang Xu
+	Harmonious projections and Halmos' two projections theorem for Hilbert C⁎-module operators	2020	Qingxiang Xu Guanjie Yan
+	Seminorm and numerical radius inequalities of operators in semi-Hilbertian spaces	2020	Mohammad Sal Moslehian Qingxiang Xu Ali Zamani
+	An optimal perturbation bound for the partial isometry associated to the generalized polar decomposition	2020	Chunhong Fu Qingxiang Xu
+	Some upper bounds for the $\mathbb{A}$-numerical radius of $2\times 2$ block matrices	2020	Qingxiang Xu Zhongming Ye Ali Zamani
+	WEIGHTED MOORE-PENROSE INVERSES OF ADJOINTABLE OPERATORS ON INDEFINITE INNER-PRODUCT SPACES	2020	Mengjie Qin Qingxiang Xu Ali Zamani
+	Douglas' + Sebestyén's lemmas = a tool for solving an operator equation problem	2019	Dragana S. Cvetković‐Ilić Qing‐Wen Wang Qingxiang Xu
+	A note on the range of the product of two operators	2019	QIN Mengjie Qingxiang Xu
+	Douglas factorization theorem revisited	2019	Vladimir Manuilov Mohammad Sal Moslehian Qingxiang Xu
+ PDF Chat	The polar decomposition for adjointable operators on Hilbert $C^{*}$ -modules and $n$ -centered operators	2019	Liu Na Wei Luo Qingxiang Xu
+ PDF Chat	Positivity of $2\times 2$ block matrices of operators	2019	Mohammad Sal Moslehian Mohsen Kian Qingxiang Xu
+	Halmos' two projections theorem for Hilbert C⁎-module operators and the Friedrichs angle of two closed submodules	2019	Wei Luo Mohammad Sal Moslehian Qingxiang Xu
+	A remark on the partial isometry associated to the generalized polar decomposition of a matrix	2019	Chunhong Fu Qingxiang Xu
+	Numerical radius inequalities concerning with algebraic norms	2019	Ali Zamani Mohammad Sal Moslehian Qingxiang Xu Chun-E Fu
+ PDF Chat	New multiplicative perturbation bounds for the generalized polar decomposition	2018	Na Liu Wei Luo Qingxiang Xu
+ PDF Chat	The polar decomposition for adjointable operators on Hilbert $C^*$-modules and centered operators	2018	Na Liu‎ Wei Luo Qingxiang Xu
+	Solvability of the equation $AX=C$ for operators on Hilbert C*-modules	2018	Vladimir Manuilov Mohammad Sal Moslehian Qingxiang Xu
+ PDF Chat	Perturbation estimation for the parallel sum of Hermitian positive semi-definite matrices	2018	Wei Luo Chuanning Song Qingxiang Xu
+ PDF Chat	Positive solutions of the system of operator equations $A_1X=C_1,XA_2=C_2, A_3XA^_3=C_3, A_4XA^_4=C_4$ in Hilbert $C^*$-modules	2018	Rasoul Eskandari Xiaochun Fang Mohammad Sal Moslehian Qingxiang Xu
+	The polar decomposition for adjointable operators on Hilbert $C^*$-modules and $n$-centered operators	2018	Liu Na Wei Luo Qingxiang Xu
+	The parallel sum for adjointable operators on Hilbert $C^*$-modules	2018	Wei Luo Chuanning Song Qingxiang Xu
+	New multiplicative perturbation bounds for the generalized polar decomposition	2018	Na Liu‎ Wei Luo Qingxiang Xu
+	Multiplicative perturbations of matrices and the generalized triple reverse order law for the Moore–Penrose inverse	2017	Qingxiang Xu Chuanning Song Guorong Wang
+	A note on majorization and range inclusion of adjointable operators on Hilbert C⁎-modules	2016	Qingxiang Xu Xiaochun Fang
+	Representations and norm estimations for the Moore–Penrose inverse of multiplicative perturbations of matrices	2016	Xiaobo Zhang Xuxu Fang Chuanning Song Qingxiang Xu
+	Norm estimations for the Moore–Penrose inverse of multiplicative perturbations of matrices	2016	Na Hu Wei Luo Chuanning Song Qingxiang Xu
+	NORM ESTIMATIONS FOR PERTURBATIONS OF THE WEIGHTED MOORE-PENROSE INVERSE	2016	Xiaobo Zhang Qingxiang Xu Yimin Wei
+	General exact solutions of certain second-order homogeneous algebraic differential equations	2015	Lili He Chuanning Song Qingxiang Xu
+	Representations for the group inverse of anti-triangular block operator matrices	2013	Qingxiang Xu Chuanning Song Lili He
+	A note on stable perturbations of Moore–Penrose inverses	2011	Li Zhao Qingxiang Xu Yimin Wei
+ PDF Chat	THE GENERALIZED INVERSES A<sup>(1,2)</sup><sub>T,S</sub>OF THE ADJOINTABLE OPERATORS ON THE HILBERT C<sup>^*</sup>-MODULES	2010	Qingxiang Xu Xiaobo Zhang
+	The Stable Perturbation of the Drazin Inverse of the Square Matrices	2010	Qingxiang Xu Chuanning Song Yimin Wei
+	Sharp Norm-Estimations for Moore–Penrose Inverses of Stable Perturbations of Hilbert $C^*$-Module Operators	2010	Qingxiang Xu Yimin Wei Yangyang Gu
+	Representations for weighted Moore-Penrose inverses of partitioned adjointable operators	2010	Qingxiang Xu Yonghao Chen Chuanning Song
+	An Invariant Ideal of Certain Toeplitz Algebra Which is not Diagonal Invariant	2009	Qingxiang Xu
+	Deformation Retraction of Groups and Toeplitz Algebras	2006	Qingxiang Xu
+	The Faithful Representations of Toeplitz Algebras	2003	Qingxiang Xu
+	THE MINIMAL CLOSED NON-TRIVIAL IDEALS OF TOEPLITZ ALGEBRAS ON DISCRETE GROUPS	2000	Qingxiang Xu
+	Fredholm operators in Toeplitz algebras associated with discrete abelian groups	1998	Qingxiang Xu Xiaoman Chen

Common Coauthors

Coauthor	Papers Together
Chuanning Song	10
Chunhong Fu	10
Mohammad Sal Moslehian	10
Wei Luo	9
Ali Zamani	7
Xiaoyi Tian	5
Yimin Wei	5
Guanjie Yan	3
Xiaochun Fang	3
Xiaofeng Zhang	3
Dingyi Du	3
Xiaoyi Tian	3
Na Liu	2
Liu Na	2
Xiaobo Zhang	2
Na Liu‎	2
Xiaofeng Zhang	2
Lili He	2
Vladimir Manuilov	2
Rasoul Eskandari	2
Xiaofeng Zhang	2
Zhongming Ye	2
Mengjie Qin	1
Wenzhi Luo	1
Chun-E Fu	1
Li Zhao	1
QIN Mengjie	1
Jiajia Chen	1
Yangyang Gu	1
Dragana S. Cvetković‐Ilić	1
L.J. Huang	1
Xiaoman Chen	1
R. Eskandari	1
Shuo Zhao	1
Mohammad Sababheh	1
Mohsen Kian	1
Xuxu Fang	1
Shuo Zhao	1
Hamid Reza Moradi	1
Na Liu	1
Xiaofeng Zhang	1
Xiaobo Zhang	1
Zhang Hai	1
Qing‐Wen Wang	1
Hasan Karimi	1
Na Hu	1
Guorong Wang	1
Yonghao Chen	1

Commonly Cited References

Action	Title	Year	Authors	# of times referenced
+	C-Algebras and Their Automorphism Groups	1979	Gert Kjærgård Pedersen	16
+	Hilbert C*-Modules	1995	E. Christopher Lance	16
+ PDF Chat	The polar decomposition for adjointable operators on Hilbert $C^*$-modules and centered operators	2018	Na Liu‎ Wei Luo Qingxiang Xu	12
+	Positive semi-definite matrices of adjointable operators on Hilbert <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mrow><mml:msup><mml:mrow><mml:mi>C</mml:mi></mml:mrow><mml:mrow><mml:mo>∗</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>-modules	2008	Qingxiang Xu Lijuan Sheng	12
+	Sharp Norm-Estimations for Moore–Penrose Inverses of Stable Perturbations of Hilbert $C^*$-Module Operators	2010	Qingxiang Xu Yimin Wei Yangyang Gu	11
+ PDF Chat	On majorization, factorization, and range inclusion of operators on Hilbert space	1966	R. G. Douglas	10
+	On operator ranges	1971	Peter Fillmore J. P. Williams	9
+	Series and parallel addition of matrices	1969	William N. Anderson R. J. Duffin	7
+ PDF Chat	Positivity of $2\times 2$ block matrices of operators	2019	Mohammad Sal Moslehian Mohsen Kian Qingxiang Xu	6
+	Shorted Operators. II	1975	William N. Anderson George E. Trapp	6
+	On the Polar Decomposition of the Product of Two Operators and Its Applications	2004	Masatoshi Ito Takeaki Yamazaki Masahiro Yanagida	6
+	Closed range and nonclosed range adjointable operators on Hilbert $$C^*$$ C ∗ -modules	2017	Mehdi Vosough Mohammad Sal Moslehian Qingxiang Xu	5
+	K-Theory and C*-Algebras: A Friendly Approach	1993	N E Wegge-Olsen	5
+	A gentle guide to the basics of two projections theory	2009	Albrecht Böttcher Ilya M. Spitkovsky	5
+	A-numerical radius inequalities for semi-Hilbertian space operators	2019	Ali Zamani	5
+	Numerical Radius Inequalities for Certain 2 × 2 Operator Matrices	2011	Omar Hirzallah Fuad Kittaneh Khalid Shebrawi	5
+	Numerical radius inequalities for operator matrices	2018	Satyajit Sahoo ‎Namita Das Debasisha Mishra	5
+	Factorizations of linear relations	2012	Dan Popovici Zoltán Sebestyén	4
+	On the polar decomposition of the aluthge transformation and related results	2004	Masatoshi Ito Takeaki Yamazaki Masahiro Yanagida	4
+	Solutions to Operator Equations on Hilbert C*-Modules II	2010	Xiaochun Fang Jing Yu	4
+	Harmonious projections and Halmos' two projections theorem for Hilbert C⁎-module operators	2020	Qingxiang Xu Guanjie Yan	4
+	Some New Perturbation Bounds for the Generalized Polar Decomposition	2004	Xiaoshan Chen Wen Li Weiwei Sun	4
+	Perturbation theory for pseudo-inverses	1973	Per-Åke Wedin	4
+	C*–Algebras and Operator Theory	1990	Gerard J. Murphy	4
+	An alternative approach to the parallel sum	1989	T. D. Morley	4
+	A note on majorization and range inclusion of adjointable operators on Hilbert C⁎-modules	2016	Qingxiang Xu Xiaochun Fang	4
+	Halmos' two projections theorem for Hilbert C⁎-module operators and the Friedrichs angle of two closed submodules	2019	Wei Luo Mohammad Sal Moslehian Qingxiang Xu	4
+	A note on multiplicative perturbation bounds for the Moore–Penrose inverse	2013	Hu Yang Pingping Zhang	3
+	Generalized inverses and Douglas equations	2008	Marta Arias Gustavo Corach M. Gonzalez	3
+	Perturbation Bounds of Unitary and Subunitary Polar Factors	2002	Wen Li Weiwei Sun	3
+ PDF Chat	Inequalities for operator space numerical radius of 2 × 2 block matrices	2015	Mohammad Sal Moslehian Mostafa Sattari	3
+	A note on stable perturbations of Moore–Penrose inverses	2011	Li Zhao Qingxiang Xu Yimin Wei	3
+	On Centered and Weakly Centered Operators	1995	Vern I. Paulsen Carl Pearcy Srdjan Petrović	3
+ PDF Chat	Characterizations of a Class of Matrices and Perturbation of the Drazin Inverse	2008	N. Castro-González J. Robles J.Y. Vélez-Cerrada	3
+ PDF Chat	Moore-Penrose inverse of product operators in Hilbert C*- modules	2016	Karizaki Mohammadzadeh Mahmoud Hassani Maryam Amyari	3
+ PDF Chat	Bilateral shorted operators and parallel sums	2005	Jorge Antezana Gustavo Corach Demetrio Stojanoff	3
+ PDF Chat	Products of orthogonal projections and polar decompositions	2010	Gustavo Corach Alejandra Maestripieri	3
+	Hermitian and Nonnegative Definite Solutions of Linear Matrix Equations	1976	C. G. Khatri Sujit Kumar Mitra	3
+	A Note on the Shorted Operator	1988	C. Allen Butler T. D. Morley	3
+ PDF Chat	Relative Perturbation Theory: II. Eigenspace and Singular Subspace Variations	1998	Ren‐Cang Li	3
+	Variations for the Q- and H-factors in the polar decomposition	2008	Xiaoshan Chen Wen Li	3
+	Multiplicative perturbation bounds for weighted polar decomposition	2013	Xiaoli Hong Lingsheng Meng Bing Zheng	3
+ PDF Chat	On certain inequalities and characteristic value problems for analytic functions and for functions of two variables	1937	K. O. Friedrichs	3
+ PDF Chat	Partial isometries in semi-Hilbertian spaces	2007	M. L. Arias Gustavo Corach M. Celeste Gonzalez	3
+ PDF Chat	Generalized Polar Decompositions for Closed Operators in Hilbert Spaces and Some Applications	2009	Fritz Gesztesy M. M. Malamud Marius Mitrea Serguei Naboko	3
+	Some equivalent conditions of stable perturbation of operators in Hilbert spaces	2003	Yifeng Xue Guoliang Chen	3
+ PDF Chat	A generalized Drazin inverse	1996	J. J. Koliha	3
+	The Stable Perturbation of the Drazin Inverse of the Square Matrices	2010	Qingxiang Xu Chuanning Song Yimin Wei	3
+	Expressions for the Moore–Penrose inverse of block matrices involving the Schur complement	2015	N. Castro-González M.F. Martínez-Serrano J. Robles	3
+	The Index and the Drazin Inverse of Block Triangular Matrices	1977	Carl D. Meyer Nicholas J. Rose	3