Works about HILBERT space

Results: 5000

On the shrinking projection method for nonexpansive mappings endowed with graphs.

Published in:

Fixed Point Theory & Algorithms for Sciences & Engineering, 2025, v. 2025, n. 1, p. 1, doi. 10.1186/s13663-025-00791-8

By:

Kimura, Yasunori;
Phothi, Supaluk;
Tontan, Kittisak

Publication type:

Article

Robust Model Reference Adaptive Control Based on Reproducing Kernel Hilbert Spaces.

Published in:

International Journal of Adaptive Control & Signal Processing, 2025, v. 39, n. 6, p. 1128, doi. 10.1002/acs.3997

By:

Wang, Haoran;
Kurdila, Andrew J.;
L'Afflitto, Andrea;
Oesterheld, Derek;
Stilwell, Daniel J.

Publication type:

Article

On some differential inclusions with anti-periodic solutions.

Published in:

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2025, v. 33, n. 2, p. 157, doi. 10.2478/auom-2025-0024

By:

Vîntu, Ioan Vladimir

Publication type:

Article

DIRECT SUM OF LOWER SEMI-FRAMES IN HILBERT SPACES.

Published in:

Gulf Journal of Mathematics, 2025, v. 19, n. 2, p. 412, doi. 10.56947/gjom.v19i2.2803

By:

M., HEMALATHA;
JOHNSON, P. SAM;
P. K., HARIKRISHNAN

Publication type:

Article

Approaching the split common solution problem for nonlinear demicontractive mappings by means of averaged iterative algorithms.

Published in:

Studia Universitatis Babeş-Bolyai, Mathematica, 2025, v. 70, n. 2, p. 321, doi. 10.24193/subbmath.2025.2.10

By:

Berinde, Vasile;
Saleh, Khairul

Publication type:

Article

Hyponormal Measurable Operators Affiliated to a Semifinite von Neumann Algebra.

Published in:

Siberian Mathematical Journal, 2025, v. 66, n. 3, p. 656, doi. 10.1134/S0037446625030061

By:

Bikchentaev, A. M.

Publication type:

Article

EXPLICIT ITERATIVE METHODS FOR THE SPLIT FEASIBILITY PROBLEM WITH MULTIPLE OUTPUT SETS.

Published in:

Journal of Applied & Numerical Optimization, 2025, v. 7, n. 1, p. 55, doi. 10.23952/jano.7.2025.1.04

By:

TRUONG MINH TUYEN

Publication type:

Article

On the low regularity phase space of the Benjamin-Ono equation.

Published in:

EMS Surveys in Mathematical Sciences, 2025, v. 12, n. 1, p. 185, doi. 10.4171/EMSS/88

By:

Gérard, Patrick;
Topalov, Petar

Publication type:

Article

A Totally Relaxed, Self-Adaptive Tseng Extragradient Method for Monotone Variational Inequalities.

Published in:

Axioms (2075-1680), 2025, v. 14, n. 5, p. 354, doi. 10.3390/axioms14050354

By:

Ogunsola, Olufemi Johnson;
Oyewole, Olawale Kazeem;
Moshokoa, Seithuti Philemon;
Abass, Hammed Anuoluwapo

Publication type:

Article

Efficient Convex PCA with Applications to Wasserstein GPCA and Ranked Data.

Published in:

Journal of Computational & Graphical Statistics, 2025, v. 34, n. 2, p. 540, doi. 10.1080/10618600.2024.2402280

By:

Campbell, Steven;
Wong, Ting-Kam Leonard

Publication type:

Article

Blow-up of solutions to some classes of ill-posed operator equations and a growth quantification result.

Published in:

Journal of Inverse & Ill-Posed Problems, 2025, v. 33, n. 3, p. 339, doi. 10.1515/jiip-2024-0020

By:

Abbas, Jehan R.;
Flores, Mercy Grace C.;
Reyes, Noli N.;
Vallejo, Louie John D.

Publication type:

Article

The concept of t-basis and vector-valued Hardy classes.

Published in:

Turkish Journal of Mathematics, 2025, v. 49, n. 3, p. 261, doi. 10.55730/1300-0098.3588

By:

BILALOV, Bilal T.;
SADIGOVA, Sabina R.

Publication type:

Article

New Subclass of Meromorphic Functions Defined via Mittag–Leffler Function on Hilbert Space.

Published in:

Symmetry (20738994), 2025, v. 17, n. 5, p. 728, doi. 10.3390/sym17050728

By:

El-Ityan, Mohammad;
Cotîrlă, Luminita-Ioana;
Al-Hawary, Tariq;
Hammad, Suha;
Breaz, Daniel;
Buti, Rafid

Publication type:

Article

Relaxed Inertial Subgradient Extragradient Algorithm for Solving Equilibrium Problems.

Published in:

Mathematical Methods of Operations Research, 2025, v. 101, n. 2, p. 331, doi. 10.1007/s00186-025-00894-3

By:

Nwakpa, Chidi Elijah;
Ofem, Austine Efut;
Izuchukwu, Chinedu;
Okeke, Chibueze Christian

Publication type:

Article

Quantum Exact Response Theory Based on the Dissipation Function.

Published in:

Entropy, 2025, v. 27, n. 5, p. 527, doi. 10.3390/e27050527

By:

Greppi, Enrico;
Rondoni, Lamberto

Publication type:

Article

Trace inequalities for Rickart C∗-algebras.

Published in:

Positivity, 2021, v. 25, n. 5, p. 1943, doi. 10.1007/s11117-021-00852-3

By:

Bikchentaev, Airat

Publication type:

Article

a-Numerical range on C∗-algebras.

Published in:

Positivity, 2021, v. 25, n. 4, p. 1489, doi. 10.1007/s11117-021-00825-6

By:

Bourhim, Abdellatif;
Mabrouk, Mohamed

Publication type:

Article

On a question of Pietch.

Published in:

Positivity, 2021, v. 25, n. 1, p. 205, doi. 10.1007/s11117-020-00758-6

By:

Lonke, Yossi

Publication type:

Article

Paranormal measurable operators affiliated with a semifinite von Neumann algebra. II.

Published in:

Positivity, 2020, v. 24, n. 5, p. 1487, doi. 10.1007/s11117-020-00744-y

By:

Bikchentaev, Airat

Publication type:

Article

Cauchy–Schwarz inequalities for inner product type transformers in Q∗ norm ideals of compact operators.

Published in:

Positivity, 2020, v. 24, n. 4, p. 933, doi. 10.1007/s11117-019-00710-3

By:

Jocić, Danko R.;
Krtinić, Ɖorđe;
Lazarević, Milan

Publication type:

Article

Approximation tools and decay rates for eigenvalues of integral operators on a general setting.

Published in:

Positivity, 2020, v. 24, n. 4, p. 761, doi. 10.1007/s11117-019-00706-z

By:

Carrijo, A. O.;
Jordão, T.

Publication type:

Article

Infinite-dimensional Log-Determinant divergences between positive definite Hilbert–Schmidt operators.

Published in:

Positivity, 2020, v. 24, n. 3, p. 631, doi. 10.1007/s11117-019-00701-4

By:

Minh, Hà Quang

Publication type:

Article

Quantum observable generalized orthoalgebras.

Published in:

Positivity, 2020, v. 24, n. 3, p. 663, doi. 10.1007/s11117-019-00698-w

By:

Lei, Qiang;
Liu, Weihua;
Liu, Zhe;
Wu, Junde

Publication type:

Article

Sweeping process with right uniformly lower semicontinuous mappings.

Published in:

Positivity, 2020, v. 24, n. 1, p. 207, doi. 10.1007/s11117-019-00674-4

By:

Boudada, Sarra;
Yarou, Mustapha Fateh

Publication type:

Article

A sufficient condition for that an operator map is of the form of functional calculus.

Published in:

Positivity, 2019, v. 23, n. 2, p. 357, doi. 10.1007/s11117-018-0610-5

By:

Anjidani, Ehsan.

Publication type:

Article

On commutator of generalized Aluthge transformations and Fuglede-Putnam theorem.

Published in:

Positivity, 2018, v. 22, n. 5, p. 1281, doi. 10.1007/s11117-018-0574-5

By:

Rashid, M. H. M.;
Tanahashi, Kotaro

Publication type:

Article

On property of injectivity for real W*-algebras and JW-algebras.

Published in:

Positivity, 2018, v. 22, n. 5, p. 1345, doi. 10.1007/s11117-018-0579-0

By:

Rakhimov, A. A.;
Nurillaev, M. E.

Publication type:

Article

Operator maps of Jensen-type.

Published in:

Positivity, 2018, v. 22, n. 5, p. 1255, doi. 10.1007/s11117-018-0571-8

By:

Hansen, Frank;
Moslehian, Mohammad Sal;
Najafi, Hamed

Publication type:

Article

uτ-convergence in locally solid vector lattices.

Published in:

Positivity, 2018, v. 22, n. 4, p. 1065, doi. 10.1007/s11117-018-0559-4

By:

Dabboorasad, Y. A.;
Emelyanov, E. Y.;
Marabeh, M. A. A.

Publication type:

Article

Order closed ideals in pre-Riesz spaces and their relationship to bands.

Published in:

Positivity, 2018, v. 22, n. 4, p. 1039, doi. 10.1007/s11117-018-0558-5

By:

Malinowski, Helena

Publication type:

Article

Injectivity and projectivity in p-multinormed spaces.

Published in:

Positivity, 2018, v. 22, n. 4, p. 1023, doi. 10.1007/s11117-018-0557-6

By:

Oikhberg, T.

Publication type:

Article

On a Hardy operator inequality.

Published in:

Positivity, 2018, v. 22, n. 3, p. 773, doi. 10.1007/s11117-017-0543-4

By:

Kian, Mohsen

Publication type:

Article

Operator inequalities of Hölder type for unitarily invariant norms.

Published in:

Positivity, 2017, v. 21, n. 4, p. 1495, doi. 10.1007/s11117-017-0481-1

By:

Zhao, Jianguo;
Wu, Junliang

Publication type:

Article

Hardy type inequaltiy for reproducing Kernel Hilbert space operators and related problems.

Published in:

Positivity, 2017, v. 21, n. 4, p. 1615, doi. 10.1007/s11117-017-0489-6

By:

Garayev, Mubariz;
Gürdal, Mehmet;
Saltan, Suna

Publication type:

Article

Conditionally positive definite kernels in Hilbert $$C^*$$ -modules.

Published in:

Positivity, 2017, v. 21, n. 3, p. 1161, doi. 10.1007/s11117-016-0458-5

By:

Moslehian, Mohammad

Publication type:

Article

On reproducing kernel and density problems.

Published in:

Positivity, 2017, v. 21, n. 1, p. 143, doi. 10.1007/s11117-016-0414-4

By:

Ferreira, José

Publication type:

Article

On the mappings connected with parallel addition of nonnegative operators.

Published in:

Positivity, 2017, v. 21, n. 1, p. 299, doi. 10.1007/s11117-016-0421-5

By:

Arlinskiĭ, Yu.

Publication type:

Article

Lyapunov functions for evolution variational inequalities with uniformly prox-regular sets.

Published in:

Positivity, 2017, v. 21, n. 1, p. 423, doi. 10.1007/s11117-016-0428-y

By:

Hantoute, Abderrahim;
Mazade, Marc

Publication type:

Article

Positive maps which map the set of rank k projections onto itself.

Published in:

Positivity, 2017, v. 21, n. 1, p. 509, doi. 10.1007/s11117-016-0432-2

By:

Størmer, Erling

Publication type:

Article

Improving integrability via absolute summability: a general version of Diestel's Theorem.

Published in:

Positivity, 2016, v. 20, n. 2, p. 369, doi. 10.1007/s11117-015-0361-5

By:

Pellegrino, D.;
Rueda, P.;
Sánchez-Pérez, E.

Publication type:

Article

Normality of spaces of operators and quasi-lattices.

Published in:

Positivity, 2015, v. 19, n. 4, p. 695, doi. 10.1007/s11117-015-0323-y

By:

Messerschmidt, Miek

Publication type:

Article

Probability measure on conjugation logics.

Published in:

Positivity, 2015, v. 19, n. 3, p. 539, doi. 10.1007/s11117-014-0314-4

By:

Matvejchuk, Marjan

Publication type:

Article

Lipschitz and Hölder continuity results for some functions of cones.

Published in:

Positivity, 2014, v. 18, n. 3, p. 505, doi. 10.1007/s11117-013-0258-0

By:

Seeger, Alberto

Publication type:

Article

Real ideals of compact operators of complex factors.

Published in:

Positivity, 2014, v. 18, n. 1, p. 1, doi. 10.1007/s11117-013-0226-8

By:

Albeverio, Sergio;
Dadakhodjaev, Rashidkhon;
Rakhimov, Abdugafur

Publication type:

Article

Bounds and positivity conditions for operator valued functions in a Hilbert lattice.

Published in:

Positivity, 2013, v. 17, n. 3, p. 407, doi. 10.1007/s11117-012-0176-6

By:

Gil', Michael

Publication type:

Article

Lebesgue-type decomposition of positive operators.

Published in:

Positivity, 2013, v. 17, n. 3, p. 803, doi. 10.1007/s11117-012-0206-4

By:

Tarcsay, Zsigmond

Publication type:

Article

Gelfand numbers and metric entropy of convex hulls in Hilbert spaces.

Published in:

Positivity, 2013, v. 17, n. 1, p. 171, doi. 10.1007/s11117-012-0157-9

By:

Carl, Bernd;
Hinrichs, Aicke;
Pajor, Alain

Publication type:

Article

Isometries on spaces of vector valued Lipschitz functions.

Published in:

Positivity, 2013, v. 17, n. 1, p. 47, doi. 10.1007/s11117-011-0148-2

By:

Botelho, Fernanda;
Jamison, James;
Zheng, Bentuo

Publication type:

Article

Hölder-type inequalities involving unitarily invariant norms.

Published in:

Positivity, 2012, v. 16, n. 2, p. 255, doi. 10.1007/s11117-011-0122-z

By:

Albadawi, Hussien

Publication type:

Article

A strict minimax inequality criterion and some of its consequences.

Published in:

Positivity, 2012, v. 16, n. 3, p. 455, doi. 10.1007/s11117-012-0164-x

By:

Ricceri, Biagio

Publication type:

Article