Pikul, Piotr Joint backward extension property for weighted shifts on directed trees. (English) Zbl 07667599 Linear Algebra Appl. 665, 253-290 (2023). Reviewer: Tudor Bînzar (Timişoara) MSC: 47B37 47B20 47A20 47B02 05C20 PDFBibTeX XMLCite \textit{P. Pikul}, Linear Algebra Appl. 665, 253--290 (2023; Zbl 07667599) Full Text: DOI arXiv
Escribano, C.; Gonzalo, R.; Torrano, E. Smallest and largest generalized eigenvalues of large moment matrices and some applications. (English) Zbl 1515.47017 J. Math. Anal. Appl. 521, No. 2, Article ID 126959, 16 p. (2023). MSC: 47A57 42C05 41A10 PDFBibTeX XMLCite \textit{C. Escribano} et al., J. Math. Anal. Appl. 521, No. 2, Article ID 126959, 16 p. (2023; Zbl 1515.47017) Full Text: DOI arXiv
Szafraniec, Franciszek Hugon Transporting positive definiteness. (English) Zbl 1524.30017 Acta Sci. Math. 88, No. 1-2, 505-514 (2022). Reviewer: Victor V. Goryainov (Moskva) MSC: 30C40 32A25 32A70 32D15 42A82 44A60 PDFBibTeX XMLCite \textit{F. H. Szafraniec}, Acta Sci. Math. 88, No. 1--2, 505--514 (2022; Zbl 1524.30017) Full Text: DOI
Pikul, Piotr Backward extensions of weighted shifts on directed trees. (English) Zbl 1517.47058 Integral Equations Oper. Theory 94, No. 3, Paper No. 26, 38 p. (2022). MSC: 47B37 47B20 47A20 05C05 05C20 PDFBibTeX XMLCite \textit{P. Pikul}, Integral Equations Oper. Theory 94, No. 3, Paper No. 26, 38 p. (2022; Zbl 1517.47058) Full Text: DOI arXiv
Szafraniec, Franciszek Hugon; Wojtylak, Michał The complex moment problem of Dirichlet type. (English) Zbl 1514.44005 Integral Transforms Spec. Funct. 32, No. 5-8, 620-631 (2021). MSC: 44A60 PDFBibTeX XMLCite \textit{F. H. Szafraniec} and \textit{M. Wojtylak}, Integral Transforms Spec. Funct. 32, No. 5--8, 620--631 (2021; Zbl 1514.44005) Full Text: DOI
El-Azhar, Hamza; Harrat, Ayoub; Stochel, Jan Idempotents and moment problem for discrete measure. (English) Zbl 1477.44008 Linear Algebra Appl. 628, 202-227 (2021). Reviewer: Florian-Horia Vasilescu (Villeneuve d’Ascq) MSC: 44A60 47A57 46C99 PDFBibTeX XMLCite \textit{H. El-Azhar} et al., Linear Algebra Appl. 628, 202--227 (2021; Zbl 1477.44008) Full Text: DOI
Szafraniec, Franciszek Hugon Revitalising Pedrick’s approach to reproducing kernel Hilbert spaces. (English) Zbl 07355468 Complex Anal. Oper. Theory 15, No. 4, Paper No. 66, 12 p. (2021). MSC: 47-XX PDFBibTeX XMLCite \textit{F. H. Szafraniec}, Complex Anal. Oper. Theory 15, No. 4, Paper No. 66, 12 p. (2021; Zbl 07355468) Full Text: DOI
Curto, Raúl E.; Gazeau, Jean-Pierre; Horzela, Andrzej; Moslehian, Mohammad Sal; Putinar, Mihai; Schmüdgen, Konrad; de Snoo, Henk; Stochel, Jan Mathematical work of Franciszek Hugon Szafraniec and its impacts. (English) Zbl 1444.01024 Adv. Oper. Theory 5, No. 3, 1297-1313 (2020). MSC: 01A70 PDFBibTeX XMLCite \textit{R. E. Curto} et al., Adv. Oper. Theory 5, No. 3, 1297--1313 (2020; Zbl 1444.01024) Full Text: DOI
Budzyński, Piotr; Dymek, Piotr; Płaneta, Artur Quasinormal extensions of subnormal operator-weighted composition operators in \(\ell^{2}\)-spaces. (English) Zbl 1458.47013 J. Math. Anal. Appl. 452, No. 1, 27-46 (2017). MSC: 47B33 47B20 47A20 47B37 46E40 PDFBibTeX XMLCite \textit{P. Budzyński} et al., J. Math. Anal. Appl. 452, No. 1, 27--46 (2017; Zbl 1458.47013) Full Text: DOI arXiv
Szafraniec, Franciszek Hugon; Wojtylak, Michał The Sobolev moment problem and Jordan dilations. (English) Zbl 1381.44019 J. Math. Anal. Appl. 444, No. 2, 1675-1689 (2016). MSC: 44A60 30E05 42C05 47A57 PDFBibTeX XMLCite \textit{F. H. Szafraniec} and \textit{M. Wojtylak}, J. Math. Anal. Appl. 444, No. 2, 1675--1689 (2016; Zbl 1381.44019) Full Text: DOI arXiv
Budzyński, Piotr; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan Unbounded subnormal composition operators in \(L^2\)-spaces. (English) Zbl 1321.47056 J. Funct. Anal. 269, No. 7, 2110-2164 (2015). MSC: 47B33 47B20 47B37 44A60 PDFBibTeX XMLCite \textit{P. Budzyński} et al., J. Funct. Anal. 269, No. 7, 2110--2164 (2015; Zbl 1321.47056) Full Text: DOI arXiv
Escribano, C.; Gonzalo, R.; Torrano, E. On the inversion of infinite moment matrices. (English) Zbl 1314.44005 Linear Algebra Appl. 475, 292-305 (2015). MSC: 44A60 15A29 PDFBibTeX XMLCite \textit{C. Escribano} et al., Linear Algebra Appl. 475, 292--305 (2015; Zbl 1314.44005) Full Text: DOI
Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan Weighted shifts on directed trees. (English) Zbl 1248.47033 Mem. Am. Math. Soc. 1017, 107 p. (2012). Reviewer: Abdellatif Bourhim (Syracuse) MSC: 47B37 47B20 47A05 44A60 47-02 PDFBibTeX XMLCite \textit{Z. J. Jabłoński} et al., Weighted shifts on directed trees. Providence, RI: American Mathematical Society (AMS) (2012; Zbl 1248.47033) Full Text: DOI arXiv
Szafraniec, Franciszek Hugon; Wojtylak, Michał Pontryagin space structure in reproducing kernel Hilbert spaces over \(*\)-semigroups. (English) Zbl 1219.43003 Positivity 15, No. 1, 161-174 (2011). Reviewer: José Bonet (Valencia) MSC: 43A35 46C50 47B32 PDFBibTeX XMLCite \textit{F. H. Szafraniec} and \textit{M. Wojtylak}, Positivity 15, No. 1, 161--174 (2011; Zbl 1219.43003) Full Text: DOI arXiv
Cichoń, Dariusz; Stochel, Jan; Szafraniec, Franciszek Hugon Extending positive definiteness. (English) Zbl 1213.43006 Trans. Am. Math. Soc. 363, No. 1, 545-577 (2011). Reviewer: José Bonet (Valencia) MSC: 43A35 44A60 47A20 47B20 PDFBibTeX XMLCite \textit{D. Cichoń} et al., Trans. Am. Math. Soc. 363, No. 1, 545--577 (2011; Zbl 1213.43006) Full Text: DOI arXiv
Escribano, C.; Gonzalo, R.; Torrano, E. Small eigenvalues of large Hermitian moment matrices. (English) Zbl 1202.30060 J. Math. Anal. Appl. 374, No. 2, 470-480 (2011). MSC: 30E05 30E15 PDFBibTeX XMLCite \textit{C. Escribano} et al., J. Math. Anal. Appl. 374, No. 2, 470--480 (2011; Zbl 1202.30060) Full Text: DOI arXiv Link
Hassi, Seppo; Sebestyén, Zoltán; de Snoo, Henk Lebesgue type decompositions for nonnegative forms. (English) Zbl 1185.47002 J. Funct. Anal. 257, No. 12, 3858-3894 (2009). Reviewer: Andreas Fleige (Dortmund) MSC: 47A07 28A12 46B22 PDFBibTeX XMLCite \textit{S. Hassi} et al., J. Funct. Anal. 257, No. 12, 3858--3894 (2009; Zbl 1185.47002) Full Text: DOI
Jung, Il Bong; Stochel, Jan Subnormal operators whose adjoints have rich point spectrum. (English) Zbl 1216.47032 J. Funct. Anal. 255, No. 7, 1797-1816 (2008). MSC: 47B20 47A10 47A16 47A20 81R30 PDFBibTeX XMLCite \textit{I. B. Jung} and \textit{J. Stochel}, J. Funct. Anal. 255, No. 7, 1797--1816 (2008; Zbl 1216.47032) Full Text: DOI
Cichoń, Dariusz; Stochel, Jan Subnormality, analyticity and perturbations. (English) Zbl 1131.47011 Rocky Mt. J. Math. 37, No. 6, 1831-1869 (2007). MSC: 47A56 47B20 46G20 47A55 30G30 46T25 PDFBibTeX XMLCite \textit{D. Cichoń} and \textit{J. Stochel}, Rocky Mt. J. Math. 37, No. 6, 1831--1869 (2007; Zbl 1131.47011) Full Text: DOI Euclid
Szafraniec, Franciszek Hugon Orthogonality of analytic polynomials: a little step further. (English) Zbl 1129.42014 J. Comput. Appl. Math. 179, No. 1-2, 343-353 (2005). MSC: 42C05 47A57 47B99 PDFBibTeX XMLCite \textit{F. H. Szafraniec}, J. Comput. Appl. Math. 179, No. 1--2, 343--353 (2005; Zbl 1129.42014) Full Text: DOI
Jabłoński, Zenon J. Complete hyperexpansivity, subnormality and inverted boundedness conditions. (English) Zbl 1059.47021 Integral Equations Oper. Theory 44, No. 3, 316-336 (2002). Reviewer: Gerhard Garske (Hagen) MSC: 47B20 47A30 47B37 47B40 47B35 PDFBibTeX XMLCite \textit{Z. J. Jabłoński}, Integral Equations Oper. Theory 44, No. 3, 316--336 (2002; Zbl 1059.47021) Full Text: DOI
Szafraniec, Franciszek Hugon On matrix integration of matrix polynomials. (English) Zbl 0991.42017 J. Comput. Appl. Math. 133, No. 1-2, 611-621 (2001). Reviewer: Andrei Martínez Finkelshtein (Almeria) MSC: 42C05 46E22 42A82 65D32 44A60 PDFBibTeX XMLCite \textit{F. H. Szafraniec}, J. Comput. Appl. Math. 133, No. 1--2, 611--621 (2001; Zbl 0991.42017) Full Text: DOI
Stochel, Jan; Szafraniec, Franciszek Hugon The complex moment problem and subnormality: A polar decomposition approach. (English) Zbl 1048.47500 J. Funct. Anal. 159, No. 2, 432-491, FU983284 (1998). MSC: 47A57 14P10 44A60 47B15 47B20 47B35 30E05 PDFBibTeX XMLCite \textit{J. Stochel} and \textit{F. H. Szafraniec}, J. Funct. Anal. 159, No. 2, 432--491, FU983284 (1998; Zbl 1048.47500) Full Text: DOI Link
Stochel, Jan Positive definiteness and commutativity of operators. (English) Zbl 0892.47023 Proc. Am. Math. Soc. 126, No. 2, 431-440 (1998). MSC: 47B20 43A35 PDFBibTeX XMLCite \textit{J. Stochel}, Proc. Am. Math. Soc. 126, No. 2, 431--440 (1998; Zbl 0892.47023) Full Text: DOI
Szafraniec, F. H. A method of localizing the spectra of sequences of orthogonal polynomials. (English) Zbl 0874.42015 J. Comput. Appl. Math. 65, No. 1-3, 387-394 (1995). Reviewer: H.Stahl (Berlin) MSC: 42C05 PDFBibTeX XMLCite \textit{F. H. Szafraniec}, J. Comput. Appl. Math. 65, No. 1--3, 387--394 (1995; Zbl 0874.42015) Full Text: DOI
Stochel, Jan Moment functions on real algebraic sets. (English) Zbl 0819.47015 Ark. Mat. 30, No. 1, 133-148 (1992). MSC: 47A57 47B20 47B25 14P05 44A60 PDFBibTeX XMLCite \textit{J. Stochel}, Ark. Mat. 30, No. 1, 133--148 (1992; Zbl 0819.47015) Full Text: DOI
Stochel, Jan; Todorov, Todor. S. Characterizations of cyclic *-representations with equal weak and strong commutants. (English) Zbl 0771.46031 J. Math. Phys. 33, No. 12, 4190-4195 (1992). MSC: 46K10 46L05 PDFBibTeX XMLCite \textit{J. Stochel} and \textit{Todor. S. Todorov}, J. Math. Phys. 33, No. 12, 4190--4195 (1992; Zbl 0771.46031) Full Text: DOI
Niechwiej, J.; Szafraniec, F. H. Cosine representations of Bochner type. (English) Zbl 0735.47023 Rend. Circ. Mat. Palermo, II. Ser. 39, No. 3, 486-492 (1990). MSC: 47D09 44A15 46F12 PDFBibTeX XMLCite \textit{J. Niechwiej} and \textit{F. H. Szafraniec}, Rend. Circ. Mat. Palermo (2) 39, No. 3, 486--492 (1990; Zbl 0735.47023) Full Text: DOI
Putinar, Mihai A two-dimensional moment problem. (English) Zbl 0668.47024 J. Funct. Anal. 80, No. 1, 1-8 (1988). MSC: 47B37 28A15 PDFBibTeX XMLCite \textit{M. Putinar}, J. Funct. Anal. 80, No. 1, 1--8 (1988; Zbl 0668.47024) Full Text: DOI
Ovcharenko, I. E. Two-dimensional Hausdorff moment sequences. (English) Zbl 0578.44007 Ukr. Math. J. 36, 548-552 (1984). MSC: 44A60 PDFBibTeX XMLCite \textit{I. E. Ovcharenko}, Ukr. Math. J. 36, 548--552 (1984; Zbl 0578.44007) Full Text: DOI
Sebestyén, Z. A moment problem with respect to \(C^*\)-algebras. (English) Zbl 0556.46035 Acta Math. Hung. 42, 331-335 (1983). Reviewer: G.Schlichting MSC: 46L30 46L05 PDFBibTeX XMLCite \textit{Z. Sebestyén}, Acta Math. Hung. 42, 331--335 (1983; Zbl 0556.46035) Full Text: DOI