Pankov, Mark A non-surjective Wigner-type theorem in terms of equivalent pairs of subspaces. (English) Zbl 07901464 Linear Algebra Appl. 698, 261-271 (2024). MSC: 46C05 PDFBibTeX XMLCite \textit{M. Pankov}, Linear Algebra Appl. 698, 261--271 (2024; Zbl 07901464) Full Text: DOI arXiv
Ravasini, Davide; Thimm, Daylen K. Generic nonexpansive Hilbert space mappings. arXiv:2407.03881 Preprint, arXiv:2407.03881 [math.FA] (2024). MSC: 46C05 54E52 BibTeX Cite \textit{D. Ravasini} and \textit{D. K. Thimm}, ``Generic nonexpansive Hilbert space mappings'', Preprint, arXiv:2407.03881 [math.FA] (2024) Full Text: arXiv OA License
Eskandari, Rasoul; Moslehian, Mohammad Sal Convergence of Random Products of Countably Infinitely Many Projections. arXiv:2405.04848 Preprint, arXiv:2405.04848 [math.FA] (2024). MSC: 46C05 47A05 47B02 BibTeX Cite \textit{R. Eskandari} and \textit{M. S. Moslehian}, ``Convergence of Random Products of Countably Infinitely Many Projections'', Preprint, arXiv:2405.04848 [math.FA] (2024) Full Text: arXiv OA License
Sen, Anirban; Birbonshi, Riddhick; Paul, Kallol A note on the \(A\)-numerical range of semi-Hilbertian operators. arXiv:2402.05360 Preprint, arXiv:2402.05360 [math.FA] (2024). MSC: 46C05 47A05 BibTeX Cite \textit{A. Sen} et al., ``A note on the $A$-numerical range of semi-Hilbertian operators'', Preprint, arXiv:2402.05360 [math.FA] (2024) Full Text: arXiv OA License
Aljasem, Jafar; Kisil, Vladimir V. Operator Projective Line and Its Transformations. arXiv:2402.02595 Preprint, arXiv:2402.02595 [math.FA] (2024). MSC: 46C05 47A11 53D05 81S10 BibTeX Cite \textit{J. Aljasem} and \textit{V. V. Kisil}, ``Operator Projective Line and Its Transformations'', Preprint, arXiv:2402.02595 [math.FA] (2024) Full Text: DOI arXiv OA License
Xue, Shengli; Zhang, Lijun; Xie, Zhiqi; Yan, Weijun; Zhang, Kuize Embedding cross-dimensional vector space into \(\ell^2\). (English) Zbl 07903320 J. Syst. Sci. Complex. 36, No. 6, 2309-2324 (2023). MSC: 46C05 15A03 PDFBibTeX XMLCite \textit{S. Xue} et al., J. Syst. Sci. Complex. 36, No. 6, 2309--2324 (2023; Zbl 07903320) Full Text: DOI
Borodin, Petr A.; Kopecká, Eva Convergence of remote projections onto convex sets. (English) Zbl 07788550 Pure Appl. Funct. Anal. 8, No. 6, 1603-1620 (2023). Reviewer: Uday Shankar Chakraborty (Silchar) MSC: 46C05 47J25 41A65 PDFBibTeX XMLCite \textit{P. A. Borodin} and \textit{E. Kopecká}, Pure Appl. Funct. Anal. 8, No. 6, 1603--1620 (2023; Zbl 07788550) Full Text: arXiv Link
Borodin, P. A.; Burusheva, L. Sh. A convergence rate estimate for remotest projections on three subspaces. (English. Russian original) Zbl 07786660 Funct. Anal. Appl. 57, No. 2, 164-168 (2023); translation from Funkts. Anal. Prilozh. 57, No. 2, 100-105 (2023). MSC: 46C05 PDFBibTeX XMLCite \textit{P. A. Borodin} and \textit{L. Sh. Burusheva}, Funct. Anal. Appl. 57, No. 2, 164--168 (2023; Zbl 07786660); translation from Funkts. Anal. Prilozh. 57, No. 2, 100--105 (2023) Full Text: DOI
Sukharev, V. A criterion for topological sum existence in class of splitting subspaces of inner product spaces. (English) Zbl 1537.46021 Lobachevskii J. Math. 44, No. 7, 2942-2947 (2023). MSC: 46C05 PDFBibTeX XMLCite \textit{V. Sukharev}, Lobachevskii J. Math. 44, No. 7, 2942--2947 (2023; Zbl 1537.46021) Full Text: DOI
Watanabe, Keiichi Möbius gyrovector spaces and functional analysis. (English) Zbl 1533.46022 RIMS Kôkyûroku Bessatsu B93, 223-237 (2023). MSC: 46C05 20N05 46C99 46T99 47A30 51M10 83A05 46-02 PDFBibTeX XMLCite \textit{K. Watanabe}, RIMS Kôkyûroku Bessatsu B93, 223--237 (2023; Zbl 1533.46022) Full Text: Link
Starovoitov, A. P.; Kechko, E. P. Polyorthogonalization in pre-Hilbert spaces. (English) Zbl 1531.46016 Lobachevskii J. Math. 44, No. 4, 1506-1512 (2023). MSC: 46C05 33C45 PDFBibTeX XMLCite \textit{A. P. Starovoitov} and \textit{E. P. Kechko}, Lobachevskii J. Math. 44, No. 4, 1506--1512 (2023; Zbl 1531.46016) Full Text: DOI
Bagarello, Fabio; Corso, Rosario Some perturbation results for quasi-bases and other sequences of vectors. (English) Zbl 1512.46021 J. Math. Phys. 64, No. 4, Article ID 043502, 14 p. (2023). MSC: 46C05 46B15 42C15 81Q12 81R30 47A10 PDFBibTeX XMLCite \textit{F. Bagarello} and \textit{R. Corso}, J. Math. Phys. 64, No. 4, Article ID 043502, 14 p. (2023; Zbl 1512.46021) Full Text: DOI arXiv
Conde, Cristian; Feki, Kais On approximate \(A\)-seminorm and \(A\)-numerical radius orthogonality of operators. arXiv:2312.10135 Preprint, arXiv:2312.10135 [math.FA] (2023). MSC: 46C05 47A05 47A12 47B65 47L05 BibTeX Cite \textit{C. Conde} and \textit{K. Feki}, ``On approximate $A$-seminorm and $A$-numerical radius orthogonality of operators'', Preprint, arXiv:2312.10135 [math.FA] (2023) Full Text: arXiv OA License
Oertel, Frank Beyond trace class – Tensor products of Hilbert spaces and operator ideals in quantum physics. arXiv:2308.04627 Preprint, arXiv:2308.04627 [math.FA] (2023). MSC: 46C05 47B10 81T05 46M05 81P16 81P45 BibTeX Cite \textit{F. Oertel}, ``Beyond trace class -- Tensor products of Hilbert spaces and operator ideals in quantum physics'', Preprint, arXiv:2308.04627 [math.FA] (2023) Full Text: arXiv OA License
Bauschke, Heinz H.; Wang, Xianfu Roots of the identity operator and proximal mappings: (classical and phantom) cycles and gap vectors. (English) Zbl 1509.46015 Proc. Am. Math. Soc. 150, No. 12, 5383-5395 (2022). Reviewer: Stefan Cobzaş (Cluj-Napoca) MSC: 46C05 47H05 52A41 47H10 49J53 90C25 PDFBibTeX XMLCite \textit{H. H. Bauschke} and \textit{X. Wang}, Proc. Am. Math. Soc. 150, No. 12, 5383--5395 (2022; Zbl 1509.46015) Full Text: DOI arXiv
Simons, Stephen \(m\)th roots of the identity operator and the geometry conjecture. (English) Zbl 1502.46016 Proc. Am. Math. Soc. 150, No. 10, 4315-4323 (2022). Reviewer: Stefan Cobzaş (Cluj-Napoca) MSC: 46C05 46C07 49J35 46A22 47H05 47H10 PDFBibTeX XMLCite \textit{S. Simons}, Proc. Am. Math. Soc. 150, No. 10, 4315--4323 (2022; Zbl 1502.46016) Full Text: DOI arXiv
Noethen, F. Well-separating common complements for sequences of subspaces of the same codimension are generic in Hilbert spaces. (English) Zbl 1513.46043 Anal. Math. 48, No. 3, 827-847 (2022). Reviewer: Mohammad Sal Moslehian (Mashhad) MSC: 46C05 46B20 PDFBibTeX XMLCite \textit{F. Noethen}, Anal. Math. 48, No. 3, 827--847 (2022; Zbl 1513.46043) Full Text: DOI arXiv
Zhang, Ye; Chen, Yanni; Hadwin, Don Some topologies related to nonseparable Hilbert spaces and their applications. (English) Zbl 1501.46023 J. Math. Anal. Appl. 514, No. 1, Article ID 126299, 14 p. (2022). Reviewer: Daniele Puglisi (Catania) MSC: 46C05 46B28 PDFBibTeX XMLCite \textit{Y. Zhang} et al., J. Math. Anal. Appl. 514, No. 1, Article ID 126299, 14 p. (2022; Zbl 1501.46023) Full Text: DOI
Andruchow, E. The set of partial isometries as a quotient Finsler space. (English) Zbl 1500.46019 Indag. Math., New Ser. 33, No. 4, 736-752 (2022). MSC: 46C05 58B20 53C22 PDFBibTeX XMLCite \textit{E. Andruchow}, Indag. Math., New Ser. 33, No. 4, 736--752 (2022; Zbl 1500.46019) Full Text: DOI arXiv
Bottazzi, Tamara; Conde, Cristian Generalized Buzano Inequality. arXiv:2204.14233 Preprint, arXiv:2204.14233 [math.FA] (2022). MSC: 46C05 26D15 47B65 47A12 BibTeX Cite \textit{T. Bottazzi} and \textit{C. Conde}, ``Generalized Buzano Inequality'', Preprint, arXiv:2204.14233 [math.FA] (2022) Full Text: arXiv OA License
Simons, Stephen Touching multifunctions on a Hilbert space. arXiv:2203.00106 Preprint, arXiv:2203.00106 [math.FA] (2022). MSC: 46C05 46C07 47H05 47H10 BibTeX Cite \textit{S. Simons}, ``Touching multifunctions on a Hilbert space'', Preprint, arXiv:2203.00106 [math.FA] (2022) Full Text: arXiv OA License
Dragomir, Silvestru Sever Some Bessel type additive inequalities in inner product spaces. (English) Zbl 1513.46042 Stud. Univ. Babeș-Bolyai, Math. 66, No. 2, 381-395 (2021). MSC: 46C05 26D15 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 2, 381--395 (2021; Zbl 1513.46042) Full Text: DOI
Alwadani, Salihah; Bauschke, Heinz H.; Revalski, Julian P.; Wang, Xianfu The difference vectors for convex sets and a resolution of the geometry conjecture. (English) Zbl 1508.46015 OJMO, Open J. Math. Optim. 2, Article No. 5, 18 p. (2021). MSC: 46C05 46C07 49J35 46A22 47H05 47H10 PDFBibTeX XMLCite \textit{S. Alwadani} et al., OJMO, Open J. Math. Optim. 2, Article No. 5, 18 p. (2021; Zbl 1508.46015) Full Text: DOI arXiv OA License
Watanabe, Keiichi On a notion of complex Möbius gyrovector spaces. (English) Zbl 1497.46029 Nihonkai Math. J. 32, No. 2, 111-131 (2021). MSC: 46C05 20N05 46C99 46T99 51M10 PDFBibTeX XMLCite \textit{K. Watanabe}, Nihonkai Math. J. 32, No. 2, 111--131 (2021; Zbl 1497.46029) Full Text: Link
Popova, N. D.; Strilets, O. V. Criteria for the existence of systems of subspaces related to a certain class of unicyclic graphs. (English. Ukrainian original) Zbl 1489.46031 Ukr. Math. J. 73, No. 4, 649-660 (2021); translation from Ukr. Mat. Zh. 73, No. 4, 556-565 (2021). MSC: 46C05 05C10 PDFBibTeX XMLCite \textit{N. D. Popova} and \textit{O. V. Strilets}, Ukr. Math. J. 73, No. 4, 649--660 (2021; Zbl 1489.46031); translation from Ukr. Mat. Zh. 73, No. 4, 556--565 (2021) Full Text: DOI
Vetterlein, Thomas Orthogonality spaces arising from infinite-dimensional complex Hilbert spaces. (English) Zbl 1503.46020 Int. J. Theor. Phys. 60, No. 2, 727-738 (2021). MSC: 46C05 81P10 PDFBibTeX XMLCite \textit{T. Vetterlein}, Int. J. Theor. Phys. 60, No. 2, 727--738 (2021; Zbl 1503.46020) Full Text: DOI OA License
Vetterlein, Thomas Gradual transitivity in orthogonality spaces of finite rank. (English) Zbl 1498.46026 Aequationes Math. 95, No. 3, 483-503 (2021). Reviewer: Sergejs Solovjovs (Praha) MSC: 46C05 06C15 81P10 11E39 11E88 12D99 12E15 PDFBibTeX XMLCite \textit{T. Vetterlein}, Aequationes Math. 95, No. 3, 483--503 (2021; Zbl 1498.46026) Full Text: DOI arXiv OA License
Minculete, Nicuşor; Niezgoda, Marek The orthogonal projections and several inequalities. (English) Zbl 1477.46024 Math. Inequal. Appl. 24, No. 1, 185-200 (2021). MSC: 46C05 26D10 26D15 PDFBibTeX XMLCite \textit{N. Minculete} and \textit{M. Niezgoda}, Math. Inequal. Appl. 24, No. 1, 185--200 (2021; Zbl 1477.46024) Full Text: DOI
Buhagiar, D.; Chetcuti, E.; Weber, H. Order topology on orthocomplemented posets of linear subspaces of a pre-Hilbert space. (English) Zbl 1472.46021 Ann. Mat. Pura Appl. (4) 200, No. 1, 211-228 (2021). MSC: 46C05 03G12 81P10 46L30 PDFBibTeX XMLCite \textit{D. Buhagiar} et al., Ann. Mat. Pura Appl. (4) 200, No. 1, 211--228 (2021; Zbl 1472.46021) Full Text: DOI arXiv
Salas, David; Thibault, Lionel Quantitative characterizations of nonconvex bodies with smooth boundaries in Hilbert spaces via the metric projection. (English) Zbl 1469.46022 J. Math. Anal. Appl. 494, No. 2, Article ID 124588, 21 p. (2021). MSC: 46C05 49J52 PDFBibTeX XMLCite \textit{D. Salas} and \textit{L. Thibault}, J. Math. Anal. Appl. 494, No. 2, Article ID 124588, 21 p. (2021; Zbl 1469.46022) Full Text: DOI
Bauschke, Heinz H.; Ouyang, Hui; Wang, Xianfu On angles between convex cones. arXiv:2105.05972 Preprint, arXiv:2105.05972 [math.FA] (2021). MSC: 46C05 52A05 90C25 BibTeX Cite \textit{H. H. Bauschke} et al., ``On angles between convex cones'', Preprint, arXiv:2105.05972 [math.FA] (2021) Full Text: arXiv OA License
Marinescu, D. Ş.; Monea, M. Pompeiu’s theorem in inner product spaces. (English) Zbl 1474.46049 Acta Univ. Apulensis, Math. Inform. 64, 37-42 (2020). MSC: 46C05 PDFBibTeX XMLCite \textit{D. Ş. Marinescu} and \textit{M. Monea}, Acta Univ. Apulensis, Math. Inform. 64, 37--42 (2020; Zbl 1474.46049) Full Text: Link
Kopecká, Eva When products of projections diverge. (English) Zbl 1462.46021 J. Lond. Math. Soc., II. Ser. 102, No. 1, 345-367 (2020). Reviewer: Mohammad Sal Moslehian (Mashhad) MSC: 46C05 05C38 PDFBibTeX XMLCite \textit{E. Kopecká}, J. Lond. Math. Soc., II. Ser. 102, No. 1, 345--367 (2020; Zbl 1462.46021) Full Text: DOI arXiv
Borodin, Petr A.; Kopecká, Eva Alternating projections, remotest projections, and greedy approximation. (English) Zbl 1458.46020 J. Approx. Theory 260, Article ID 105486, 16 p. (2020). Reviewer: Cătălin Badea (Villeneuve d’Ascq) MSC: 46C05 05C38 47B02 PDFBibTeX XMLCite \textit{P. A. Borodin} and \textit{E. Kopecká}, J. Approx. Theory 260, Article ID 105486, 16 p. (2020; Zbl 1458.46020) Full Text: DOI arXiv
Anghel, Nicolae A generalization of Pascal’s hexagon theorem to real Hilbert spaces. (English) Zbl 1461.46018 J. Geom. Graph. 24, No. 1, 1-7 (2020). MSC: 46C05 51A20 PDFBibTeX XMLCite \textit{N. Anghel}, J. Geom. Graph. 24, No. 1, 1--7 (2020; Zbl 1461.46018) Full Text: Link
Pankov, Mark Orthogonality preserving transformations of Hilbert Grassmannians. (English) Zbl 1461.46019 Linear Algebra Appl. 605, 180-189 (2020). MSC: 46C05 47N50 81P10 PDFBibTeX XMLCite \textit{M. Pankov}, Linear Algebra Appl. 605, 180--189 (2020; Zbl 1461.46019) Full Text: DOI arXiv OA License
Otachel, Zdzisław Inequalities for angles between subspaces with applications to Cauchy-Schwarz inequality in inner product spaces. (English) Zbl 1460.46016 Math. Inequal. Appl. 23, No. 2, 487-495 (2020). MSC: 46C05 15A45 PDFBibTeX XMLCite \textit{Z. Otachel}, Math. Inequal. Appl. 23, No. 2, 487--495 (2020; Zbl 1460.46016) Full Text: DOI
Balashov, Maxim V. Lipschitz stability of extremal problems with a strongly convex set. (English) Zbl 1440.46020 J. Convex Anal. 27, No. 1, 103-116 (2020). Reviewer: Vasile Postolică (Piatra Neamt) MSC: 46C05 52A07 52A99 PDFBibTeX XMLCite \textit{M. V. Balashov}, J. Convex Anal. 27, No. 1, 103--116 (2020; Zbl 1440.46020) Full Text: Link
Mykhaylyuk, Volodymyr; Popov, Mikhail On geometric entropy in Hilbert spaces. (English) Zbl 1437.46028 J. Math. Anal. Appl. 481, No. 2, Article ID 123487, 15 p. (2020). Reviewer: Barry Turett (Rochester) MSC: 46C05 46B50 46B15 PDFBibTeX XMLCite \textit{V. Mykhaylyuk} and \textit{M. Popov}, J. Math. Anal. Appl. 481, No. 2, Article ID 123487, 15 p. (2020; Zbl 1437.46028) Full Text: DOI
Feshchenko, Ivan When is the sum of closed subspaces of a Hilbert space closed? arXiv:2012.08688 Preprint, arXiv:2012.08688 [math.FA] (2020). MSC: 46C05 46C07 47B15 BibTeX Cite \textit{I. Feshchenko}, ``When is the sum of closed subspaces of a Hilbert space closed?'', Preprint, arXiv:2012.08688 [math.FA] (2020) Full Text: arXiv OA License
Feki, Kais Inequalities for the \(A\)-joint numerical radius of two operators and their applications. arXiv:2005.04758 Preprint, arXiv:2005.04758 [math.FA] (2020). MSC: 46C05 47A12 47A13 47B65 47A12 BibTeX Cite \textit{K. Feki}, ``Inequalities for the $A$-joint numerical radius of two operators and their applications'', Preprint, arXiv:2005.04758 [math.FA] (2020) Full Text: arXiv OA License
Feshchenko, Ivan On the inverse best approximation property of systems of subspaces of a Hilbert space. arXiv:2002.01959 Preprint, arXiv:2002.01959 [math.FA] (2020). MSC: 46C05 46C07 47B15 46N30 BibTeX Cite \textit{I. Feshchenko}, ``On the inverse best approximation property of systems of subspaces of a Hilbert space'', Preprint, arXiv:2002.01959 [math.FA] (2020) Full Text: arXiv OA License
Klimek, Maciej Geometry of vector arrays and operator amplications in Hilbert spaces. (English) Zbl 1450.46015 Math. Proc. R. Ir. Acad. 119A, No. 2, 133-155 (2019). MSC: 46C05 42C15 15A24 62M10 PDFBibTeX XMLCite \textit{M. Klimek}, Math. Proc. R. Ir. Acad. 119A, No. 2, 133--155 (2019; Zbl 1450.46015) Full Text: DOI
Mikić, Rozarija; Pečarić, Josip Inequalities of the Edmundson-Lah-Ribarič type for selfadjoint operators in Hilbert spaces. (English) Zbl 1436.46026 Math. Inequal. Appl. 22, No. 4, 1193-1213 (2019). Reviewer: Mohammad Sal Moslehian (Mashhad) MSC: 46C05 47A63 47A64 26A51 PDFBibTeX XMLCite \textit{R. Mikić} and \textit{J. Pečarić}, Math. Inequal. Appl. 22, No. 4, 1193--1213 (2019; Zbl 1436.46026) Full Text: DOI
Dragomir, Sever Silvestru Inequalities for hypo-\(q\)-norms on a Cartesian product of inner product spaces. (English) Zbl 1441.46021 Mat. Bilt. 43, No. 2, 5-29 (2019). MSC: 46C05 26D15 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Mat. Bilt. 43, No. 2, 5--29 (2019; Zbl 1441.46021) Full Text: Link
Minculete, Nicuşor Some refinements of Ostrowski’s inequality and an extension to a 2-inner product space. (English) Zbl 1425.46014 Symmetry 11, No. 5, Paper No. 707, 12 p. (2019). MSC: 46C05 26D15 26D10 PDFBibTeX XMLCite \textit{N. Minculete}, Symmetry 11, No. 5, Paper No. 707, 12 p. (2019; Zbl 1425.46014) Full Text: DOI OA License
Dragomir, Silvestru Sever Some functionals associated to semi-inner products on complex Banach spaces. (English) Zbl 1436.46025 Bull. Allahabad Math. Soc. 34, No. 1, 85-103 (2019). MSC: 46C05 26D15 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Bull. Allahabad Math. Soc. 34, No. 1, 85--103 (2019; Zbl 1436.46025)
Dragomir, Silvestru Sever Operator refinements of Schwarz inequality in inner product spaces. (English) Zbl 1430.46018 Linear Multilinear Algebra 67, No. 9, 1839-1855 (2019). MSC: 46C05 26D15 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Linear Multilinear Algebra 67, No. 9, 1839--1855 (2019; Zbl 1430.46018) Full Text: DOI
Salas, David; Thibault, Lionel On characterizations of submanifolds via smoothness of the distance function in Hilbert spaces. (English) Zbl 1433.46016 J. Optim. Theory Appl. 182, No. 1, 189-210 (2019). MSC: 46C05 41A65 49J50 PDFBibTeX XMLCite \textit{D. Salas} and \textit{L. Thibault}, J. Optim. Theory Appl. 182, No. 1, 189--210 (2019; Zbl 1433.46016) Full Text: DOI
Shofianah, Nur; Darti, Isnani; Anam, Syaiful Dynamical analysis of HIV/AIDS epidemic model with two latent stages, vertical transmission and treatment. (English) Zbl 1414.46022 Aust. J. Math. Anal. Appl. 16, No. 1, Article No. 17, 11 p. (2019). MSC: 46C05 46C99 26D15 26D10 PDFBibTeX XMLCite \textit{N. Shofianah} et al., Aust. J. Math. Anal. Appl. 16, No. 1, Article No. 17, 11 p. (2019; Zbl 1414.46022) Full Text: Link
Dragomir, Silvestru Sever Improving Schwarz inequality in inner product spaces. (English) Zbl 1417.46015 Linear Multilinear Algebra 67, No. 2, 337-347 (2019). MSC: 46C05 26D15 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Linear Multilinear Algebra 67, No. 2, 337--347 (2019; Zbl 1417.46015) Full Text: DOI arXiv
Fashandi, M. On the weak topology of quaternionic Hilbert spaces. (English) Zbl 1415.46018 Adv. Appl. Clifford Algebr. 29, No. 1, Paper No. 4, 10 p. (2019). MSC: 46C05 47B07 46E22 PDFBibTeX XMLCite \textit{M. Fashandi}, Adv. Appl. Clifford Algebr. 29, No. 1, Paper No. 4, 10 p. (2019; Zbl 1415.46018) Full Text: DOI
Ye, Yun An extension of the Schwarz inequality in inner product spaces. (English) Zbl 1499.46052 Filomat 32, No. 15, 5329-5335 (2018). MSC: 46C05 26D15 PDFBibTeX XMLCite \textit{Y. Ye}, Filomat 32, No. 15, 5329--5335 (2018; Zbl 1499.46052) Full Text: DOI
Bleak, Collin; Juschenko, Kate Ideal structure of the \(C^\ast\)-algebra of R. Thompson’s group \(T\). (English) Zbl 1430.46017 Broaddus, N. (ed.) et al., Topological methods in group theory. Proceedings of the conference, Ohio State University, Columbus, OH, USA, June 16–20, 2014 in honor of Ross Geoghegan’s 70th birthday. Cambridge: Cambridge University Press. Lond. Math. Soc. Lect. Note Ser. 451, 46-66 (2018). MSC: 46C05 20F65 PDFBibTeX XMLCite \textit{C. Bleak} and \textit{K. Juschenko}, Lond. Math. Soc. Lect. Note Ser. 451, 46--66 (2018; Zbl 1430.46017) Full Text: DOI
Dragomir, Silvestru Sever; Minculete, Nicuşor On several inequalities in an inner product space. (English) Zbl 1438.46034 Bull. Transilv. Univ. Brașov, Ser. III, Math. Inform. Phys. 11(60), No. 1, 65-76 (2018). MSC: 46C05 26D15 26D10 PDFBibTeX XMLCite \textit{S. S. Dragomir} and \textit{N. Minculete}, Bull. Transilv. Univ. Brașov, Ser. III, Math. Inform. Phys. 11(60), No. 1, 65--76 (2018; Zbl 1438.46034)
Spitkovsky, Ilya M. A distance formula related to a family of projections orthogonal to their symmetries. (English) Zbl 1452.46018 André, Carlos (ed.) et al., Operator theory, operator algebras, and matrix theory. Based on the presentations at the international workshop on operator theory and operator algebras, WOAT 2016, Lisbon, Portugal, July 5–8, 2016. Cham: Birkhäuser. Oper. Theory: Adv. Appl. 267, 371-376 (2018). MSC: 46C05 PDFBibTeX XMLCite \textit{I. M. Spitkovsky}, Oper. Theory: Adv. Appl. 267, 371--376 (2018; Zbl 1452.46018) Full Text: DOI arXiv
Dragomir, Sever S. A note on the Wang-Zhang and Schwarz inequalities. (English) Zbl 1438.46033 Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 395-399 (2018). MSC: 46C05 26D15 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 395--399 (2018; Zbl 1438.46033) Full Text: DOI
Watanabe, Keiichi A Cauchy-Bunyakovsky-Schwarz type inequality related to the Möbius addition. (English) Zbl 1412.46038 J. Math. Inequal. 12, No. 4, 989-996 (2018). MSC: 46C05 26D20 PDFBibTeX XMLCite \textit{K. Watanabe}, J. Math. Inequal. 12, No. 4, 989--996 (2018; Zbl 1412.46038) Full Text: DOI
Hu, Shanwen; Jin, Wei; Xue, Yifeng Some distances on subspaces. (English) Zbl 1454.46028 Funct. Anal. Approx. Comput. 10, No. 3, 27-35 (2018). MSC: 46C05 PDFBibTeX XMLCite \textit{S. Hu} et al., Funct. Anal. Approx. Comput. 10, No. 3, 27--35 (2018; Zbl 1454.46028) Full Text: Link
Lemmens, Bas; Roelands, Mark; Wortel, Marten Isometries of infinite dimensional Hilbert geometries. (English) Zbl 1431.46010 J. Topol. Anal. 10, No. 4, 941-959 (2018). MSC: 46C05 46B04 51F99 58B20 22F50 PDFBibTeX XMLCite \textit{B. Lemmens} et al., J. Topol. Anal. 10, No. 4, 941--959 (2018; Zbl 1431.46010) Full Text: DOI arXiv
Brody, Dorje C. Biorthogonal systems on unit interval and zeta dilation operators. (English) Zbl 1457.46027 J. Phys. A, Math. Theor. 51, No. 28, Article ID 285202, 5 p. (2018). MSC: 46C05 46B15 30B50 42C30 47B06 PDFBibTeX XMLCite \textit{D. C. Brody}, J. Phys. A, Math. Theor. 51, No. 28, Article ID 285202, 5 p. (2018; Zbl 1457.46027) Full Text: DOI arXiv Link
Gingold, Harry; Gingold, Yotam; Hamad, Salah A spherical projection of a complex Hilbert space is conformal iff it is the stereographic projection. (English) Zbl 1404.46019 Differ. Geom. Dyn. Syst. 20, 38-71 (2018). Reviewer: Peter P. Zabreĭko (Minsk) MSC: 46C05 51N15 14M27 14N05 PDFBibTeX XMLCite \textit{H. Gingold} et al., Differ. Geom. Dyn. Syst. 20, 38--71 (2018; Zbl 1404.46019) Full Text: Link
Zhang, Ye An identity for \((\delta,\varepsilon)\)-approximately orthogonality preserving mappings. (English) Zbl 1405.46020 Linear Algebra Appl. 554, 358-370 (2018). MSC: 46C05 47L05 47B99 PDFBibTeX XMLCite \textit{Y. Zhang}, Linear Algebra Appl. 554, 358--370 (2018; Zbl 1405.46020) Full Text: DOI
Minculete, Nicuşor Considerations about the several inequalities in an inner product space. (English) Zbl 1402.46016 J. Math. Inequal. 12, No. 1, 155-161 (2018). MSC: 46C05 26D15 26D10 PDFBibTeX XMLCite \textit{N. Minculete}, J. Math. Inequal. 12, No. 1, 155--161 (2018; Zbl 1402.46016) Full Text: DOI
Zhang, Wei Dual and approximately dual Hilbert-Schmidt frames in Hilbert spaces. (English) Zbl 1401.46012 Result. Math. 73, No. 1, Paper No. 4, 20 p. (2018). Reviewer: Anirudha Poria (Greater Noida) MSC: 46C05 42C15 46B15 PDFBibTeX XMLCite \textit{W. Zhang}, Result. Math. 73, No. 1, Paper No. 4, 20 p. (2018; Zbl 1401.46012) Full Text: DOI
Oppenheim, Izhar Angle criteria for uniform convergence of averaged projections and cyclic or random products of projections. (English) Zbl 1458.46021 Isr. J. Math. 223, 343-362 (2018). MSC: 46C05 47B02 PDFBibTeX XMLCite \textit{I. Oppenheim}, Isr. J. Math. 223, 343--362 (2018; Zbl 1458.46021) Full Text: DOI arXiv
Barnes, Benedict; Owusu-Ansah, E. D. J.; Amponsah, S. K.; Adjei, I. A. The proofs of triangle inequality using binomial inequalities. (English) Zbl 1404.46018 Eur. J. Pure Appl. Math. 11, No. 1, 352-361 (2018). MSC: 46C05 PDFBibTeX XMLCite \textit{B. Barnes} et al., Eur. J. Pure Appl. Math. 11, No. 1, 352--361 (2018; Zbl 1404.46018) Full Text: Link
Pankov, Mark Geometric version of Wigner’s theorem for Hilbert Grassmannians. (English) Zbl 1396.46022 J. Math. Anal. Appl. 459, No. 1, 135-144 (2018). MSC: 46C05 PDFBibTeX XMLCite \textit{M. Pankov}, J. Math. Anal. Appl. 459, No. 1, 135--144 (2018; Zbl 1396.46022) Full Text: DOI arXiv
Martínez Avendaño, Rubén A. Everything fits in a Hilbert space if you know how to accommodate it. (Todo cabe en un espacio de Hilbert sabiéndolo acomodar.) (Spanish) Zbl 1439.46015 Misc. Mat. 64, 79-95 (2017). MSC: 46C05 PDFBibTeX XMLCite \textit{R. A. Martínez Avendaño}, Misc. Mat. 64, 79--95 (2017; Zbl 1439.46015) Full Text: Link
Ansari-Piri, E.; Sanati, R. G.; Kardel, M. A characterization of orthogonality preserving operators. (English) Zbl 1411.46021 Bull. Iran. Math. Soc. 43, No. 7, 2495-2505 (2017). MSC: 46C05 PDFBibTeX XMLCite \textit{E. Ansari-Piri} et al., Bull. Iran. Math. Soc. 43, No. 7, 2495--2505 (2017; Zbl 1411.46021) Full Text: Link
Dragomir, Silvestru Sever Some inequalities in inner product spaces related to Buzano’s and Grüss’ results. (English) Zbl 1413.46028 An. Univ. Craiova, Ser. Mat. Inf. 44, No. 2, 267-277 (2017). MSC: 46C05 26D15 26D10 PDFBibTeX XMLCite \textit{S. S. Dragomir}, An. Univ. Craiova, Ser. Mat. Inf. 44, No. 2, 267--277 (2017; Zbl 1413.46028)
Strelets, Alexander On the graph \(K_{1,n}\) related configurations of subspaces of a Hilbert space. (English) Zbl 1399.46029 Methods Funct. Anal. Topol. 23, No. 3, 285-300 (2017). Reviewer: Anatoly N. Kochubei (Kyïv) MSC: 46C05 PDFBibTeX XMLCite \textit{A. Strelets}, Methods Funct. Anal. Topol. 23, No. 3, 285--300 (2017; Zbl 1399.46029) Full Text: Link
Dragomir, Silvestru Sever Vector inequalities for two projections in Hilbert spaces and applications. (English) Zbl 1393.46018 Commun. Math. Anal. 20, No. 2, 8-30 (2017). MSC: 46C05 26D15 26D10 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Commun. Math. Anal. 20, No. 2, 8--30 (2017; Zbl 1393.46018) Full Text: Euclid
Kanguzhin, B.; Ruzhansky, M.; Tokmagambetov, N. On convolutions in Hilbert spaces. (English. Russian original) Zbl 1392.46027 Funct. Anal. Appl. 51, No. 3, 221-224 (2017); translation from Funkts. Anal. Prilozh. 51, No. 3, 77-80 (2017). MSC: 46C05 42C15 PDFBibTeX XMLCite \textit{B. Kanguzhin} et al., Funct. Anal. Appl. 51, No. 3, 221--224 (2017; Zbl 1392.46027); translation from Funkts. Anal. Prilozh. 51, No. 3, 77--80 (2017) Full Text: DOI Link
Edward, J. R. V.; Jaya Mary, P. The gap and projection operators. (English) Zbl 1390.46027 Int. J. Funct. Anal. Oper. Theory Appl. 9, No. 2, 51-65 (2017). MSC: 46C05 PDFBibTeX XMLCite \textit{J. R. V. Edward} and \textit{P. Jaya Mary}, Int. J. Funct. Anal. Oper. Theory Appl. 9, No. 2, 51--65 (2017; Zbl 1390.46027) Full Text: DOI
Dragomir, Silvestru Sever Vector inequalities for a projection in Hilbert spaces and applications. (English) Zbl 1380.46016 Govil, Narenda Kumar (ed.) et al., Progress in approximation theory and applicable complex analysis. In memory of Q.I. Rahman. Cham: Springer (ISBN 978-3-319-49240-7/hbk; 978-3-319-49242-1/ebook). Springer Optimization and Its Applications 117, 163-181 (2017). MSC: 46C05 26D15 47A12 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Springer Optim. Appl. 117, 163--181 (2017; Zbl 1380.46016) Full Text: DOI
Rutkowski, Krzysztof E. Closed-form expressions for projectors onto polyhedral sets in Hilbert spaces. (English) Zbl 1378.46020 SIAM J. Optim. 27, No. 3, 1758-1771 (2017). Reviewer: Stefan Cobzaş (Cluj-Napoca) MSC: 46C05 46N10 47N10 49K27 52A07 PDFBibTeX XMLCite \textit{K. E. Rutkowski}, SIAM J. Optim. 27, No. 3, 1758--1771 (2017; Zbl 1378.46020) Full Text: DOI arXiv
Andruchow, Esteban; Antunez, Andrea C. Quotient \(p\)-Schatten metrics on spheres. (English) Zbl 1379.46023 Rev. Unión Mat. Argent. 58, No. 1, 21-36 (2017). MSC: 46C05 46T05 53C60 PDFBibTeX XMLCite \textit{E. Andruchow} and \textit{A. C. Antunez}, Rev. Unión Mat. Argent. 58, No. 1, 21--36 (2017; Zbl 1379.46023) Full Text: Link
Griebel, Michael; Oswald, Peter Stable splittings of Hilbert spaces of functions of infinitely many variables. (English) Zbl 1378.46019 J. Complexity 41, 126-151 (2017). MSC: 46C05 46M05 41A63 PDFBibTeX XMLCite \textit{M. Griebel} and \textit{P. Oswald}, J. Complexity 41, 126--151 (2017; Zbl 1378.46019) Full Text: DOI
Komisarski, Andrzej Compositions of conditional expectations, Amemiya-Andô conjecture and paradoxes of thermodynamics. (English) Zbl 1379.46024 J. Funct. Anal. 273, No. 3, 1095-1119 (2017). Reviewer: Enrique Alfonso Sánchez-Pérez (València) MSC: 46C05 46E30 46B09 80A20 PDFBibTeX XMLCite \textit{A. Komisarski}, J. Funct. Anal. 273, No. 3, 1095--1119 (2017; Zbl 1379.46024) Full Text: DOI
Kopecká, Eva; Paszkiewicz, Adam Strange products of projections. (English) Zbl 1373.46016 Isr. J. Math. 219, No. 1, 271-286 (2017). MSC: 46C05 47J25 PDFBibTeX XMLCite \textit{E. Kopecká} and \textit{A. Paszkiewicz}, Isr. J. Math. 219, No. 1, 271--286 (2017; Zbl 1373.46016) Full Text: DOI arXiv
Fard, M. A. Hasankhani; Rad, L. Mohammadi Norm retrievable frames and their perturbation in finite dimensional complex Hilbert spaces. (English) Zbl 1382.46015 Numer. Funct. Anal. Optim. 38, No. 1, 51-57 (2017). MSC: 46C05 PDFBibTeX XMLCite \textit{M. A. H. Fard} and \textit{L. M. Rad}, Numer. Funct. Anal. Optim. 38, No. 1, 51--57 (2017; Zbl 1382.46015) Full Text: DOI
Robinson, P. L. Bosonic Pairings. arXiv:1710.03751 Preprint, arXiv:1710.03751 [math-ph] (2017). MSC: 46C05 53D50 BibTeX Cite \textit{P. L. Robinson}, ``Bosonic Pairings'', Preprint, arXiv:1710.03751 [math-ph] (2017) Full Text: arXiv OA License
Kukushkin, M. V. Spectral Properties of Fractional Differentiation Operators. arXiv:1710.02662 Preprint, arXiv:1710.02662 [math.FA] (2017). MSC: 46C05 47F05 47F99 BibTeX Cite \textit{M. V. Kukushkin}, ``Spectral Properties of Fractional Differentiation Operators'', Preprint, arXiv:1710.02662 [math.FA] (2017) Full Text: arXiv OA License
Robinson, P. L. Partial Inner Products on Antiduals. arXiv:1706.07123 Preprint, arXiv:1706.07123 [math.FA] (2017). MSC: 46C05 47A12 BibTeX Cite \textit{P. L. Robinson}, ``Partial Inner Products on Antiduals'', Preprint, arXiv:1706.07123 [math.FA] (2017) Full Text: arXiv OA License
Bozkurt, Hacer; Yılmaz, Yılmaz Some new results on inner product quasilinear spaces. (English) Zbl 1438.46032 Cogent Math. 3, Article ID 1194801, 10 p. (2016). MSC: 46C05 46C07 46C15 46C50 15A03 PDFBibTeX XMLCite \textit{H. Bozkurt} and \textit{Y. Yılmaz}, Cogent Math. 3, Article ID 1194801, 10 p. (2016; Zbl 1438.46032) Full Text: DOI OA License
Yilmaz, Yilmaz; Bozkurt, Hacer; Çakan, Sümeyye On orthonormal sets in inner product quasilinear spaces. (English) Zbl 1413.46029 Creat. Math. Inform. 25, No. 2, 237-247 (2016). MSC: 46C05 46C07 46C15 46C50 PDFBibTeX XMLCite \textit{Y. Yilmaz} et al., Creat. Math. Inform. 25, No. 2, 237--247 (2016; Zbl 1413.46029)
Ricceri, Biagio More on the metric projection onto a closed convex set in a Hilbert space. (English) Zbl 1381.46022 Pardalos, Panos M. (ed.) et al., Contributions in mathematics and engineering. In honor of Constantin Carathéodory. With a foreword by R. Tyrrell Rockafellar. Cham: Springer (ISBN 978-3-319-31315-3/hbk; 978-3-319-31317-7/ebook). 529-534 (2016). MSC: 46C05 PDFBibTeX XMLCite \textit{B. Ricceri}, in: Contributions in mathematics and engineering. In honor of Constantin Carathéodory. With a foreword by R. Tyrrell Rockafellar. Cham: Springer. 529--534 (2016; Zbl 1381.46022) Full Text: DOI arXiv
Cahill, Jameson; Casazza, Peter G.; Daubechies, Ingrid Phase retrieval in infinite-dimensional Hilbert spaces. (English) Zbl 1380.46015 Trans. Am. Math. Soc., Ser. B 3, 63-76 (2016). Reviewer: Joseph Lakey (Las Cruces) MSC: 46C05 42C15 94A15 PDFBibTeX XMLCite \textit{J. Cahill} et al., Trans. Am. Math. Soc., Ser. B 3, 63--76 (2016; Zbl 1380.46015) Full Text: DOI arXiv OA License
Dragomir, Sever S. Some vector inequalities for two operators in Hilbert spaces with applications. (English) Zbl 1359.46022 Acta Univ. Sapientiae, Math. 8, No. 1, 75-92 (2016). MSC: 46C05 47A63 26D15 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Acta Univ. Sapientiae, Math. 8, No. 1, 75--92 (2016; Zbl 1359.46022) Full Text: DOI OA License
Pankov, Mark Orthogonal apartments in Hilbert Grassmannians. (English) Zbl 1359.46023 Linear Algebra Appl. 506, 168-182 (2016). MSC: 46C05 14M15 PDFBibTeX XMLCite \textit{M. Pankov}, Linear Algebra Appl. 506, 168--182 (2016; Zbl 1359.46023) Full Text: DOI arXiv
Dragomir, S. S. Buzano’s inequality holds for any projection. (English) Zbl 1358.46022 Bull. Aust. Math. Soc. 93, No. 3, 504-510 (2016). MSC: 46C05 26D15 26D10 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Bull. Aust. Math. Soc. 93, No. 3, 504--510 (2016; Zbl 1358.46022) Full Text: DOI
Guo, Xunxiang Wandering operators for unitary systems of Hilbert spaces. (English) Zbl 1351.46019 Complex Anal. Oper. Theory 10, No. 4, 703-723 (2016). MSC: 46C05 47B10 42C15 PDFBibTeX XMLCite \textit{X. Guo}, Complex Anal. Oper. Theory 10, No. 4, 703--723 (2016; Zbl 1351.46019) Full Text: DOI
Fongi, Guillermina; Gonzalez, M. Celeste Partial isometries and pseudoinverses in semi-Hilbertian spaces. (English) Zbl 1342.46022 Linear Algebra Appl. 495, 324-343 (2016). Reviewer: David Seifert (Oxford) MSC: 46C05 46C50 PDFBibTeX XMLCite \textit{G. Fongi} and \textit{M. C. Gonzalez}, Linear Algebra Appl. 495, 324--343 (2016; Zbl 1342.46022) Full Text: DOI
Popova, N. D.; Strilets’, O. V. On systems of subspaces of a Hilbert space related to unicyclic graph. (Ukrainian. English summary) Zbl 1363.46022 Zb. Pr. Inst. Mat. NAN Ukr. 12, No. 1, 166-177 (2015). MSC: 46C05 05C50 PDFBibTeX XMLCite \textit{N. D. Popova} and \textit{O. V. Strilets'}, Zb. Pr. Inst. Mat. NAN Ukr. 12, No. 1, 166--177 (2015; Zbl 1363.46022)
Nikoufar, I. A note on Hamel basis of Hilbert spaces. (English) Zbl 1349.46026 Acta Univ. Apulensis, Math. Inform. 41, 107-110 (2015). MSC: 46C05 PDFBibTeX XMLCite \textit{I. Nikoufar}, Acta Univ. Apulensis, Math. Inform. 41, 107--110 (2015; Zbl 1349.46026)
Bahmanpour, Saeid; Cahill, Jameson; Casazza, Peter G.; Jasper, John; Woodland, Lindsey M. Phase retrieval and norm retrieval. (English) Zbl 1354.46023 Christensen, Jens G. (ed.) et al., Trends in harmonic analysis and its applications. AMS special session on harmonic analysis and its applications, University of Maryland, Baltimore County, Baltimore, MD, USA, March 29–30, 2014. Providence, RI: American Mathematical Society (AMS) (ISBN 978-1-4704-1879-3/pbk; 978-1-4704-2777-1/ebook). Contemporary Mathematics 650, 3-14 (2015). Reviewer: Bilal Bilalov (Baku) MSC: 46C05 94A12 42C15 PDFBibTeX XMLCite \textit{S. Bahmanpour} et al., Contemp. Math. 650, 3--14 (2015; Zbl 1354.46023) Full Text: DOI arXiv
Dragomir, Sever S. Some Grüss type inequalities in inner product spaces. (English) Zbl 1343.46020 Aust. J. Math. Anal. Appl. 12, No. 1, Article No. 12, 15 p. (2015). MSC: 46C05 26D15 26D10 PDFBibTeX XMLCite \textit{S. S. Dragomir}, Aust. J. Math. Anal. Appl. 12, No. 1, Article No. 12, 15 p. (2015; Zbl 1343.46020) Full Text: arXiv Link
Narita, Keiko; Endou, Noboru; Shidama, Yasunari The orthogonal projection and the Riesz representation theorem. (English) Zbl 1321.46022 Formaliz. Math. 23, No. 3, 243-252 (2015). MSC: 46C05 46E20 03B35 PDFBibTeX XMLCite \textit{K. Narita} et al., Formaliz. Math. 23, No. 3, 243--252 (2015; Zbl 1321.46022) Full Text: DOI
Koo, Yoo Young; Lim, Jae Kun Angle \(R\). (English) Zbl 1335.46020 Bull. Malays. Math. Sci. Soc. (2) 38, No. 3, 1177-1183 (2015). MSC: 46C05 15A24 PDFBibTeX XMLCite \textit{Y. Y. Koo} and \textit{J. K. Lim}, Bull. Malays. Math. Sci. Soc. (2) 38, No. 3, 1177--1183 (2015; Zbl 1335.46020) Full Text: DOI