## Found 3,764 Documents (Results 1–100)

100
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### On subclasses of Browder and Weyl operators. (English)Zbl 07570255

MSC:  47A53 47A10 47A11
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### Maps preserving some spectral domains of operator products. (English)Zbl 07569082

MSC:  47B49 47A10 47A25
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### Further common spectral properties of bounded linear operators AC and BD. (English)Zbl 07560197

MSC:  47A10 47A53 47A55
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### Jacobson’s lemma for the generalized $$n$$-strong Drazin inverses in rings and in operator algebras. (English)Zbl 07560129

MSC:  16-XX 46Lxx 47A53
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### Completion problems on operator matrices. (English)Zbl 07550580

Mathematical Surveys and Monographs 267. Providence, RI: American Mathematical Society (AMS) (ISBN 978-1-4704-6987-0/pbk; 978-1-4704-7113-2/ebook). xiii, 170 p. (2022).

### Perturbation ideals and Fredholm theory in Banach algebras. (English)Zbl 07549735

MSC:  46H05 47A53 46J45
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### Property $$(UW_\Pi)$$ for functions of operators and compact perturbations. (English)Zbl 07548041

MSC:  47A53 47A10 47A55
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### The generalized Fredholm elements in a semisimple Banach algebra. (English)Zbl 07542672

MSC:  46H05 47A53
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### On certain operator families. (English. Russian original)Zbl 07538690

J. Math. Sci., New York 262, No. 6, 790-796 (2022); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 168, 26-32 (2019).
MSC:  35S15 47A53 47B37
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### On a boundary problem for a fourth-order elliptic equation on a plane. (English. Russian original)Zbl 07538081

Comput. Math. Math. Phys. 62, No. 4, 599-607 (2022); translation from Zh. Vychisl. Mat. Mat. Fiz. 62, No. 4, 616-624 (2022).
MSC:  35J35 35J67 47A53
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### On some essential spectra of off-diagonal block operator matrix with application. (English)Zbl 07535194

MSC:  47A08 47A53
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### On a characterization of Jeribi, Rakočević, Schechter, Schmoeger and Wolf essential spectra of a $$3 \times 3$$ block operator matrices with non diagonal domain and application. (English)Zbl 07533189

MSC:  47A10 47A53 34K08
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### Existence of solutions for a nonlocal reaction-diffusion equation in biomedical applications. (English)Zbl 07533133

MSC:  35J05 35J91 47A53
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### On backward Aluthge iterates of complex symmetric operators. (English)Zbl 07531856

MSC:  47A05 47A11 47A53
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### Improjective linear relations. (English)Zbl 07531062

MSC:  47A06 47A53 47A55
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### Invariance of the Fredholm index and spectrum of non-smooth pseudodifferential operators. (English)Zbl 07527311

MSC:  35S05 47A53 47G30
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### Consistent invertibility and perturbations of property ($$R$$). (English)Zbl 07523946

MSC:  47A53 47A10 47A55
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### Invariance of the essential spectra of closed linear operator pencils on a Banach space. (English)Zbl 07517125

MSC:  47A10 47A53 34K08
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### The condition $$\varepsilon$$-pseudospectra on non-Archimedean Banach space. (English)Zbl 07510855

MSC:  47S10 47A53 46S10
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### Spectral properties for generalized weakly $$S$$-demicompact operators. (English)Zbl 07491080

MSC:  47A53 47A10
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### Low energy limit for the resolvent of some fibered boundary operators. (English)Zbl 07488552

MSC:  58J40 46E35 47A53
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### G-Riesz operators and their spectral properties. (English)Zbl 07486145

MSC:  47A10 47A55 47A53
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MSC:  47A06
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### Ideals of band-dominated operators. (English)Zbl 07486022

MSC:  47L80 47A53 47C10
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MSC:  47A53
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### Axiomatization of the degree of Fitzpatrick, Pejsachowicz and Rabier. (English)Zbl 07468364

MSC:  47H11 47A53 55M25
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### On the generalized Drazin-Riesz inverse for closed linear operators. (English)Zbl 07465522

MSC:  47A10 47A53 47B06
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### Property $$(R)$$ for functions of operators and its perturbations. (English)Zbl 07458066

MSC:  47A53 47A10 47A55
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### On restricted diagonalization. (English)Zbl 07457103

MSC:  22E65 47B10 47A53
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### Disjointly non-singular operators on order continuous Banach lattices complement the unbounded norm topology. (English)Zbl 1486.47072

MSC:  47B60 47A55 46B42
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### Additive mappings preserving Fredholm operators with fixed nullity or defect. (English)Zbl 07559797

MSC:  15A86 47B49 47A53
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### The APS-index and the spectral flow. (English)Zbl 07538732

MSC:  47A53 58J20 58J30
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### Weyl type theorems for algebriacally class $$p$$-$$wA(s,t)$$ operators. (English)Zbl 07490902

MSC:  47A10 47A53 47B20
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### Different completions of $$A + CX$$. (English)Zbl 07481656

MSC:  47A05 47A99
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### Fredholm conditions and index for restrictions of invariant pseudodifferential operators to isotypical components. (English)Zbl 1483.58005

MSC:  58J40 46E35 47A53
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### Converting the properties in $$\mathcal{B}(\mathcal{H})$$ by operators on $$\mathcal{B}(\mathcal{H})$$. (English)Zbl 1485.47059

MSC:  47B49 47A53
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### Equality between different types of invertibility. (English)Zbl 1485.47001

MSC:  47A05 47A10 47A53
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### The g-Drazin inverses of special operator matrices. (English)Zbl 07446821

MSC:  47A08 47A11 47A53
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### Stability of some essential B-spectra of pencil operators and application. (English)Zbl 07434054

MSC:  47A53 47A55
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### Variations of Weyl type theorems for upper triangular operator matrices. (English)Zbl 07432526

MSC:  47A10 47A53
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### Characterization of product of pseudo-differential operators involving fractional Fourier transform. (English)Zbl 07425438

MSC:  35S05 47A53 47G30
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### Generalized weak demicompactness involving measure of non-strict-singularity. (English)Zbl 07423849

MSC:  47A53 47A10
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### Noether property and approximate solution of the Riemann boundary value problem on closed curves. (English)Zbl 1483.30074

MSC:  30E25 47A53 47A58
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### Elliptic $$\mathbb{Z}$$-operators associated with the metaplectic group. (English)Zbl 1479.35974

MSC:  35S05 47A53
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### Continuous Fredholm theory, regularities and semiregularities. (English)Zbl 1479.19005

MSC:  19K56 47A53 47A60
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### Some Fredholm theory results around relative demicompactness concept. (English)Zbl 07407074

MSC:  47A10 47A55 47A53
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MSC:  47A53
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### Property $$(aBR)$$ for bounded linear operators. (Chinese. English summary)Zbl 1484.47022

MSC:  47A53 47B01
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### Toeplitz products on Bergman-Sobolev spaces over the unit polydisk. (English)Zbl 1478.32021

MSC:  32A37 47B35 47A53
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### Property $$(\omega)$$ and the single-valued extension property. (English)Zbl 07400535

MSC:  47A53 47A16
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### On the Fredholm property of semielliptic operators in anisotropic weighted spaces in $$\mathbb{R}^n$$. (English)Zbl 1473.35112

J. Contemp. Math. Anal., Armen. Acad. Sci. 56, No. 3, 168-181 (2021) and Izv. Nats. Akad. Nauk Armen., Mat. 56, No. 3, 61-78 (2021).
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### Stability for the “essentially Kato” property for commuting tuples of bounded operators. (English)Zbl 07393800

MSC:  47A15 47A53 47A55
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### Compact Toeplitz operators products on Hardy-Sobolev spaces over the unit polydisk. (English)Zbl 1477.32012

MSC:  32A37 47B35 47A53

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### A note on Koliha-Drazin invertible operators and a-Browder’s theorem. (English)Zbl 1487.47020

MSC:  47A53 47A10 47A05
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### Bounded and Fredholm properties of SG-pseudo-differential operators in variable exponent spaces. (English)Zbl 07381168

MSC:  47G30 46E35 47A53
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### Nullity and deficiency of linear relations under certain perturbations. (English)Zbl 07376911

MSC:  47A06 47A53 47A55

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### A new approach in index theory. (English)Zbl 07373902

MSC:  47A53 58B05
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### Laplacian spectrum acting on $$r$$-symmetric tensors on hyperbolic space. (Spectre du Laplacien agissant sur les $$r$$-tenseurs symétriques sur l’espace hyperbolique.) (French. English summary)Zbl 1469.35159

MSC:  35P15 58J50 47A53
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### Extended Rakočević’s property. (English)Zbl 07370957

MSC:  47A53 47A10 47A11
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### Left-right essential spectra of one-sided operator matrix and application. (English)Zbl 07361677

Jeribi, Aref (ed.), Operator theory. Proceedings of the international conference on operator theory, Hammamet, Tunisia, April 30 – May 3, 2018. Berlin: De Gruyter. De Gruyter Proc. Math., 157-175 (2021).
MSC:  47A10 47A53 34K08
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