Zobrazeno 1 - 10
of 2 958
pro vyhledávání: '"Compact operator on Hilbert space"'
Publikováno v:
Proceedings of the American Mathematical Society.
A Hilbert space operator is called universal (in the sense of Rota) if every operator on the Hilbert space is similar to a multiple of the restriction of the universal operator to one of its invariant subspaces. We exhibit an analytic Toeplitz operat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bc833ba27f58ea8c3f9ca453ba8775d
https://doi.org/10.1090/proc/13922
https://doi.org/10.1090/proc/13922
Autor:
Grigori A. Karagulyan
Publikováno v:
Transactions of the American Mathematical Society. 372:4761-4803
We introduce a class of operators on abstract measure spaces, which unifies the Calder\'on-Zygmund operators on spaces of homogeneous type, the maximal functions and the martingale transforms. We prove that such operators can be dominated by simple s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e437b76a7067dd37a33b9254906e5271
https://doi.org/10.1090/tran/7722
https://doi.org/10.1090/tran/7722
Autor:
Gerardo A. Mendoza, Thomas Krainer
Publikováno v:
Mathematische Nachrichten. 291:1815-1850
The purpose of this paper is to provide a detailed description of the spaces that can be specified as $L^2$ domains for the operators of a first order elliptic complex on a compact manifold with conical singularities. This entails an analysis of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc947b8fb01af70571cb8ab30ddec5da
https://doi.org/10.1002/mana.201600482
https://doi.org/10.1002/mana.201600482
Autor:
Razi Alavizadeh, Kazem Haghnezhad Azar
Publikováno v:
Ann. Funct. Anal. 9, no. 1 (2018), 101-110
We study several properties of the modulus of order bounded disjointness-preserving operators. We show that, if $T$ is an order bounded disjointness-preserving operator, then $T$ and $\vert T\vert $ have the same compactness property for several type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::520b62cdb674381e9c84add32c8c64bf
https://doi.org/10.1215/20088752-2017-0027
https://doi.org/10.1215/20088752-2017-0027
Autor:
Alireza Medghalchi, Ahmad Mollakhalili
Publikováno v:
Bulletin of the Iranian Mathematical Society. 44:101-136
A locally compact group G is compact if and only if its convolution algebra has a non-zero (weakly) compact multiplier. Dually, G is discrete if and only if its Fourier algebra has a non-zero (weakly) compact multiplier. In addition, G is compact (re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8767cecb37d1e855ec084518a4f06319
https://doi.org/10.1007/s41980-018-0008-y
https://doi.org/10.1007/s41980-018-0008-y
Autor:
Albrecht Pietsch
Publikováno v:
Integral Equations and Operator Theory. 89:595-606
In a series of papers, I developed a new approach to operator ideals on the infinite-dimensional separable Hilbert space and their traces. Step by step, the methods have been improved and generalized. Hence it is now justified to give a mirror polish
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::580b5740eb472a0aebdedf03d3a73510
https://doi.org/10.1007/s00020-017-2410-x
https://doi.org/10.1007/s00020-017-2410-x
Autor:
Dijana Mosić
Publikováno v:
Quaestiones Mathematicae. 41:585-600
A new binary relation associated with the core–EP inverse is presented and studied on the corresponding subset of all generalized Drazin invertible bounded linear Hilbert space operators. Using the...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ba1f39e287fe6333c247b949f878418
https://doi.org/10.2989/16073606.2017.1393021
https://doi.org/10.2989/16073606.2017.1393021
Autor:
Le Hai Khoi, Minh Luan Doan
Publikováno v:
Complex Variables and Elliptic Equations. 63:1558-1569
We discover a criterion for having a closed range and completely characterize the cyclic behavior of composition operators on a class of Hilbert spaces of entire functions in the complex plane C. MOE (Min. of Education, S’pore) Accepted version
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfc4a8eaebcd10336b974efb5cc8e7b4
https://doi.org/10.1080/17476933.2017.1391799
https://doi.org/10.1080/17476933.2017.1391799
Autor:
Alexander V. Abanin, T. I. Abanina
Publikováno v:
Russian Mathematics. 61:1-4
We obtain a complete description of families of continuous and compact composition operators on Hilbert spaces of entire functions. These operators were introduced by K. Chan and J. Shapiro for studying some dynamic properties of translation operator
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e76ae077297637423d013af708e7e6c
https://doi.org/10.3103/s1066369x17100012
https://doi.org/10.3103/s1066369x17100012
Publikováno v:
Complex Variables and Elliptic Equations. 63:1408-1420
In this paper we find a formula for the adjoint of bounded pseudo-differential operators on compact Lie groups, which yields a necessary and sufficient condition for self-adjointness of these operators. By a similar method we find necessary and suffi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d0e8805e4d4404de8b2eaf81a6b930b
https://doi.org/10.1080/17476933.2017.1376188
https://doi.org/10.1080/17476933.2017.1376188