De Yu Wu

Available identifiers

zbMath Open wu.deyuMaRDI QIDQ477855

List of research outcomes

Publication	Date of Publication	Type
The essential spectrums of \(2\times 2\) unbounded anti-triangular operator matrices	2024-04-18	Paper
The essential spectrum equalities of 2r unbounded upper triangular operator matrices	2024-03-04	Paper
Numerical radius inequalities for indefinite inner product space operators	2023-09-15	Paper
Generalized upper bounds estimation of numerical radius and norm for the sum of operators	2023-05-24	Paper
Davis-Wielandt radius inequalities for off-diagonal operator matrices	2023-05-22	Paper
https://portal.mardi4nfdi.de/entity/Q5037978	2022-09-29	Paper
Numerical radius inequalities for nonlinear operators in Hilbert spaces	2022-09-26	Paper
Some general quadratic numerical radius inequalities for the off-diagonal parts of $2 ⨉ 2$ block operator matrices	2022-06-09	Paper
On some essential spectra of off-diagonal block operator matrix with application	2022-05-31	Paper
On the geometry of the quadratic numerical range for 2 × 2 block operator matrices	2022-05-05	Paper
Spectra of 2×2 upper triangular operator matrices with unbounded entries	2022-03-21	Paper
Completeness for root vectors system of a class of unbounded operator matrices	2022-03-21	Paper
无穷维Hamilton算子的可逆性及其应用	2021-12-17	Paper
https://portal.mardi4nfdi.de/entity/Q3380720	2021-09-29	Paper
The Kachurovskij spectrum of Lipschitz continuous nonlinear block operator matrices	2021-08-03	Paper
https://portal.mardi4nfdi.de/entity/Q4995920	2021-07-01	Paper
https://portal.mardi4nfdi.de/entity/Q5383459	2019-06-21	Paper
https://portal.mardi4nfdi.de/entity/Q4623566	2019-02-22	Paper
Symplectic self-adjointness of infinite dimensional Hamiltonian operators	2018-10-08	Paper
The spectral equality for upper triangular operator matrices with unbounded entries	2017-11-08	Paper
https://portal.mardi4nfdi.de/entity/Q2951538	2017-01-06	Paper
https://portal.mardi4nfdi.de/entity/Q3462771	2016-01-15	Paper
On the adjoint of operator matrices with unbounded entries. II	2015-10-26	Paper
On symplectic self-adjointness of Hamiltonian operator matrices	2015-07-31	Paper
https://portal.mardi4nfdi.de/entity/Q5260258	2015-06-29	Paper
On invertible nonnegative Hamiltonian operator matrices	2014-12-10	Paper
https://portal.mardi4nfdi.de/entity/Q5165818	2014-06-30	Paper
https://portal.mardi4nfdi.de/entity/Q2859798	2013-11-19	Paper
https://portal.mardi4nfdi.de/entity/Q2915928	2012-10-05	Paper
https://portal.mardi4nfdi.de/entity/Q2916578	2012-10-05	Paper
https://portal.mardi4nfdi.de/entity/Q2916848	2012-10-05	Paper
Spectral properties and numerical range of off-diagonal infinite-dimensional Hamiltonian operators	2012-07-04	Paper
Spectral inclusion properties of the numerical range in a space with an indefinite metric	2011-07-15	Paper
https://portal.mardi4nfdi.de/entity/Q3072740	2011-02-05	Paper
https://portal.mardi4nfdi.de/entity/Q3051994	2010-11-05	Paper
Invertibility of nonnegative Hamiltonian operator with unbounded entries	2010-10-25	Paper
Completeness in the sense of Cauchy principal value of the eigenfunction systems of infinite dimensional Hamiltonian operator	2009-12-07	Paper
https://portal.mardi4nfdi.de/entity/Q5320205	2009-07-22	Paper
https://portal.mardi4nfdi.de/entity/Q3609436	2009-03-06	Paper
https://portal.mardi4nfdi.de/entity/Q3606291	2009-02-26	Paper

Research outcomes over time

Doctoral students

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Known relations from the MaRDI Knowledge Graph

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