Edit Profile (opens in new tab) Joó, István Compute Distance To: Compute Author ID: joo.istvan Published as: Joó, I.; Joo, I.; Joó, István; Joo, Istvan; Joó, István.; Joó, Istvan more...less External Links: dblp Documents Indexed: 202 Publications since 1974 Co-Authors: 47 Co-Authors with 96 Joint Publications 1,449 Co-Co-Authors all top 5 Co-Authors 97 single-authored 12 Horváth, Miklós 11 Erdős, Pál 8 Avdonin, Sergeĭ Anatol’evich 5 Bogmér, Antal 5 Ivanov, Sergei A. 5 Stachó, László L. 4 Alimov, Shavkat Arifdzhanovich 4 Forgó, Ferenc 4 Komornik, Vilmos 4 Nguyen Minh Tuan 4 Nguyen Van Su 3 Baron, Simson 3 Bui Minh Phong 3 Schnitzer, Franz Josef 3 Zhang, Shenghai 2 Bruj, I. N. 2 Csernyak, L. 2 Il’in, Vladimir Aleksandrovich 2 Kassay, Gábor 2 Lažetić, Nebojša L. 2 Liflyand, Elijah 2 Su, N. V. 2 Tandori, Károly 2 Várlaki, Péter 1 Alexits, György 1 Bezdek, Károly 1 Bukszár, József 1 Glück, Ferenc 1 Györfi, László 1 Ismatullaev, Sh. A. 1 Kelmans, Alexander K. 1 Kóczy, László T. 1 Ky, Nguyen Xuan 1 Moser, Bernhard Alois 1 Nersessian, Anry 1 Nguyen Xuan Ky 1 Pal, Lászlo György 1 Palko, Martin 1 Szabados, Jozsef 1 Szabó, V. E. Sándor 1 Szalkai, István 1 Székely, László A. 1 Szentmiklóssy, Zoltán 1 Szili, László 1 Tahir, Muzahim Bani 1 Tallos, Peter 1 Tikk, Domonkos all top 5 Serials 71 Annales Universitatis Scientiarum Budapestinensis de Rolando Eötvös Nominatae. Sectio Mathematica 33 Acta Mathematica Hungarica 13 Acta Scientiarum Mathematicarum 12 Publicationes Mathematicae Debrecen 12 Studia Scientiarum Mathematicarum Hungarica 8 Acta Mathematica Academiae Scientiarum Hungaricae 8 Periodica Mathematica Hungarica 6 Soviet Mathematics. Doklady 4 Matematikai Lapok 3 Analysis Mathematica 2 Bulletin de la Société Mathématique de France 2 Publications de l’Institut Mathématique. Nouvelle Série 2 Annales Universitatis Scientiarum Budapestinensis de Rolando Eötvös Nominatae. Sectio Computatorica 2 Comptes Rendus de l’Académie des Sciences. Série I 1 Computers & Mathematics with Applications 1 Computer Physics Communications 1 Beiträge zur Algebra und Geometrie 1 Acta Arithmetica 1 Archiv der Mathematik 1 Doklady Akademii Nauk UzSSR 1 Fuzzy Sets and Systems 1 Acta Mathematicae Applicatae Sinica. English Series 1 Vestnik Leningradskogo Universiteta. Seriya 1. Matematika, Mekhanika, Astronomiya 1 Journal of Global Optimization 1 Vestnik Leningrad University. Mathematics 1 Grazer Mathematische Berichte 1 PU.M.A. Pure Mathematics and Applications 1 Anzeiger. Abteilung II. Österreichische Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Klasse 1 A Magyar Tudomanyos Akademia. Matematikai es Fizikai Tudomanyok Osztalyanak Közlemenyei all top 5 Fields 44 Harmonic analysis on Euclidean spaces (42-XX) 31 Partial differential equations (35-XX) 28 Number theory (11-XX) 24 Ordinary differential equations (34-XX) 24 Approximations and expansions (41-XX) 23 Systems theory; control (93-XX) 20 Operator theory (47-XX) 20 Calculus of variations and optimal control; optimization (49-XX) 17 Sequences, series, summability (40-XX) 15 Functional analysis (46-XX) 10 Mechanics of deformable solids (74-XX) 9 Special functions (33-XX) 8 Convex and discrete geometry (52-XX) 8 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 7 Real functions (26-XX) 7 Functions of a complex variable (30-XX) 4 General topology (54-XX) 4 Operations research, mathematical programming (90-XX) 3 Quantum theory (81-XX) 2 Measure and integration (28-XX) 2 Global analysis, analysis on manifolds (58-XX) 2 Statistics (62-XX) 2 Numerical analysis (65-XX) 2 Biology and other natural sciences (92-XX) 1 General and overarching topics; collections (00-XX) 1 Mathematical logic and foundations (03-XX) 1 Combinatorics (05-XX) 1 Integral equations (45-XX) 1 Manifolds and cell complexes (57-XX) 1 Computer science (68-XX) 1 Information and communication theory, circuits (94-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 93 Publications have been cited 478 times in 294 Documents Cited by ▼ Year ▼ Characterization of the unique expansions \(1=\sum^{\infty}_{i=1}q^{-n_ i}\) and related problems. Zbl 0721.11005Erdős, Pál; Joó, István; Komornik, Vilmos 84 1990 On the uniqueness of the expansions \(1=\sum q^{-n_i}\). Zbl 0747.11005Erdős, Paul; Horváth, M.; Joó, I. 48 1991 On the divergence of eigenfunction expansions. Zbl 0734.42018Joó, I. 22 1989 On the number of expansions \(1=\sum q^{-n_i}\). Zbl 0805.11011Erdős, Paul; Joó, I. 21 1992 A note on Ky Fan’s minimax theorem. Zbl 0493.49013Joo, I.; Stacho, L. L. 14 1982 On a problem of Tamas Varga. Zbl 0787.11002Erdős, Paul; Joó, M.; Joó, I. 13 1992 On the equiconvergence of expansions by Riesz bases formed by eigenfunctions of the Schrödinger operator. Zbl 0537.34019Joó, I.; Komornik, V. 13 1983 Upper estimates for the eigenfunctions of the Schrödinger operator. Zbl 0524.34027Joo, I. 13 1982 Convexity, minimax theorems and their applications. Zbl 0856.90130Joó, I.; Kassay, G. 11 1995 Riesz bases of exponentials and sine-type functions. Zbl 0645.42027Avdonin, S. A.; Joó, I. 10 1988 On the vibration of a string. Zbl 0657.93006Joó, I. 10 1987 On some convexities. Zbl 0713.90099Joó, I. 10 1989 Note on my paper ”A simple proof for von Neumann’s minimax theorem”. Zbl 0553.49009Joó, I. 10 1984 On Pisot numbers. Zbl 0880.11067Erdős, Pál; Joó, I.; Schnitzer, F. J. 9 1996 Saturation theorems for Hermite-Fourier series. Zbl 0757.41027Joó, I. 8 1991 An interpolation-theoretical characterization of the classical orthogonal polynomials. Zbl 0296.33012Joó, I. 7 1975 Stability of interpolative fuzzy KH controllers. Zbl 1047.93030Tikk, Domonkos; Joó, István; Kóczy, László; Várlaki, Péter; Moser, Bernhard 7 2002 On the sequence of numbers of the form \(\varepsilon_0+\varepsilon_1q+\dots+\varepsilon_n q^n\), \(\varepsilon \in\{0,1\}\). Zbl 0896.11006Erdős, Paul; Joó, István; Komornik, Vilmos 7 1998 Eigenfunction estimate for a Dirac operator. Zbl 0914.47044Joó, I.; Minkin, A. 6 1997 A general nontopological two-function minimax theorem. Zbl 0938.49006Forgó, Ferenc; Joó, István 6 1998 Exact estimate for the spectral function of the singular Schrödinger operator. Zbl 0633.35056Joó, I. 6 1987 On the number of \(q\)-expansions. Zbl 0824.11005Erdős, Paul; Joó, István; Komornik, Vilmos 5 1994 On the expansion \(1=\sum q^{-n_i}\). Zbl 0747.11006Erdős, Paul; Joó, I. 5 1991 On the control of a circular membrane. I. Zbl 0790.93079Joó, I. 5 1993 On Riesz bases. Zbl 0674.46006Joó, I. 5 1988 On the Riesz summability of eigenfunction expansions. Zbl 0554.35030Alimov, Š. A.; Joó, I. 5 1983 Stable interpolation on an infinite interval. Zbl 0278.41006Joó, I. 4 1974 On some Riesz bases. Zbl 0760.46011Joó, I. 4 1991 On the convergence of eigenfunction expansions. Zbl 0807.35103Joó, I. 4 1992 Answer to a problem of M. Horváth and A. Sövegjártó. Zbl 0635.49008Joó, I. 4 1986 Note on multiplicative functions satisfying a congruence property. Zbl 0666.10001Joó, István 4 1991 Notes on some papers of V. Komornik on vibrating membranes. Zbl 0727.73035Bogmér, A.; Horváth, M.; Joó, I. 4 1989 A simple proof for von Neumann’s minimax theorem. Zbl 0436.49016Joo, I. 3 1980 On positive linear interpolation operators. Zbl 0316.41003Joo, I. 3 1975 Interpolation on the roots of Laguerre polynomials. Zbl 0331.41002Joo, I. 3 1975 Weighted (0,2)-interpolation on the roots of Jacobi polynomials. Zbl 0823.41001Joó, I.; Szili, L. 3 1995 Expansions with respect to non-integer bases. Zbl 0941.11003Joó, István; Schnitzer, Franz J. 3 1996 On Ky Fan convexity. Zbl 0756.90096Horváth, Miklós; Joó, István 3 1987 On the order of approximation by Fejér means of Hermite-Fourier and Laguerre-Fourier series. Zbl 0718.42004Joó, I. 3 1988 Answer to a problem of Paul Turán. Zbl 0733.42007Joó, I.; Nguyen Xuan Ky 3 1988 On the summability of eigenfunction expansions. I. Zbl 0539.35058Joó, I. 3 1984 On summability of orthogonal series. Zbl 0346.42008Alexits, G.; Joo, I.; Tandori, K. 2 1977 On Pál interpolation. Zbl 0822.41002Joó, I. 2 1994 Approximate controllability of infinite-dimensional bilinear systems. Zbl 0933.93013Zhang, Shenghai; Joó, I. 2 1998 On some problems concerning expansions by non integer bases. Zbl 0884.11011Joó, I.; Schnitzer, F. J. 2 1997 Family of exponents and controllability of a rectangular membrane. Zbl 0743.93015Avdonin, S. A.; Ivanov, S. A.; Joó, I. 2 1990 On an arithmetical property of \(\sqrt 2\). Zbl 0766.11006Joó, I.; Joó, M. 2 1991 On Hermite-conjugate function. Zbl 0753.42011Joó, I. 2 1990 On some notions of harmonic analysis for Sturm-Liouville expansions. Zbl 0786.42015Joó, I. 2 1992 On controllability of some bilinear systems. Zbl 0774.93012Joó, István; Nguyen Minh Tuan 2 1992 On the summability of eigenfunction expansions. II. Zbl 0582.35087Joó, I. 2 1984 Generalization of an inequality of G. Pólya concerning the eigenfrequencies of vibrating bodies. Zbl 0532.49029Joó, I.; Stachó, L. L. 2 1982 A theorem of equiconvergence type. Zbl 0624.34022Joó, I. 2 1983 On the convergence of eigenfunction expansion in the norm of Sobolev spaces. Zbl 0653.35067Joó, I. 2 1986 On a fixed point theorem. Zbl 0702.47037Joó, I. 2 1989 Estimate for the difference of the second derivative of partial sums arising by non-negative selfadjoint extensions of Sturm-Liouville operators. Zbl 0493.34020Joo, I.; Lazetic, N. 2 1981 On some problems of M. Horváth. (Saturation theorems for Walsh-Fourier expansions). Zbl 0685.42013Joó, I. 2 1988 Some questions of spectral theory for the one-dimensional nonselfadjoint Schrödinger operator with potential in \(L_1\). Zbl 0448.34023Io, I. 1 1980 Spline techniques for solving first-order evolution equations in Banach spaces. Zbl 0983.65068Györfi, L.; Joó, I.; Sövegjártó, A. 1 2001 A generalization of Pál interpolation process. Zbl 0830.41004Joó, I.; Szabó, V. E. S. 1 1995 A note on minimax theorems. Zbl 0916.49004Joó, I. 1 1996 Fixed point and equilibrium theorems in pseudoconvex and related spaces. Zbl 0916.90276Forgó, Ferenc; Joó, István 1 1999 Lacunary \((0;0,1)\) interpolation on the roots of Jacobi polynomials and their derivatives, respectively. I (Existence, explicit formulae, unicity). Zbl 0881.41002Joó, I.; Pál, L. G. 1 1996 On the distribution of the set \(\{\sum^ n_{i=1}\varepsilon _ i q^ i : \varepsilon_ i \in\{0,1\}, n \in \mathbb{N}\}\). Zbl 0766.11005Joó, I. 1 1991 On Riesz bases. II. Zbl 0760.46012Horváth, M.; Joó, I. 1 1990 On a theorem of Miklós Horváth. Zbl 0765.46012Joó, István 1 1987 Minimax theorems and convexity. Zbl 0766.46001Bogmér, Antal; Horváth, Miklós; Joó, István 1 1987 On the control of a circular membrane and related problems. Zbl 0756.35007Joó, I. 1 1991 A remark on the vibration of a circular membrane in different points. Zbl 0820.73042Joó, I. 1 1992 On super Lehmer pseudoprimes. Zbl 0615.10016Joó, I.; Bui Minh Phong 1 1990 On generalized Lucas pseudoprimes. Zbl 0615.10017Joó, I. 1 1990 On Hermite functions. Zbl 0787.33005Joó, I. 1 1992 On controllability of bilinear systems. II: Controllability in two dimensions. Zbl 0800.93150Joó, I.; Nguyen Minh Tuan 1 1992 On controllability of bilinear system. III: An infinite dimensional case. Zbl 0815.93008Joó, I.; Nguyen Minh Tuan 1 1993 A class of nonlinear population evolution equations in Banach spaces. Zbl 0805.92020Joó, I.; Zhang, Shenghai 1 1993 On the number of expansions \(1=\sum q^{-n_i}\). II. Zbl 0805.11012Erdős, Paul; Joó, I. 1 1993 On the estimate of \((x_{\min}+x_{\max})/2\). II. Zbl 0794.62017Joó, I.; Szabó, S. 1 1993 On the estimate \((x_{\min}+x_{\max})/2\). Zbl 0790.62027Joó, I.; Szabó, S. 1 1992 Local controllability of Lipschitzian discrete time systems with restrained control. Zbl 0864.93025Joo, I.; Nguyen Van Su 1 1993 On the control of a net of strings. Zbl 0810.93003Joó, I. 1 1993 On weighted \((0,2)\) interpolation. Zbl 0853.41001Joó, I. 1 1995 Exponential series in the problems of initial and pointwise control of a rectangular vibrating membrane. Zbl 0863.93041Avdonin, S. A.; Ivanov, S. A.; Joó, I. 1 1995 Remarks to a paper of V. Komornik. Zbl 0591.34024Joó, I. 1 1984 On the convergence of eigenfunction expansions in \(H^ s\)-norm. Zbl 0593.35030Alimov, Š. A.; Joó, I. 1 1985 A remark on the vibration of a circular membrane in different points. Zbl 0678.73044Joó, István 1 1990 Inequalities of Bessel and Hausdorff-Young-Riesz type for functions in the class of radial functions, with respect to a system of eigenfunctions of the Laplace operator. Zbl 0634.47018Il’in, V. A.; Joó, Istvan 1 1986 On the summability of eigenfunction expansions. III. Zbl 0657.35093Joó, I. 1 1986 On the uniform Riesz summability of eigenfunction expansions. I. Zbl 0694.35124Joó, I. 1 1988 On Riesz bases from vector exponentials. I. Zbl 0725.30036Avdonin, S. A.; Ivanov, S. A.; Joó, I. 1 1989 On Riesz bases from vector exponentials. II. Zbl 0725.30037Avdonin, S. A.; Ivanov, S. A.; Joó, I. 1 1989 Equiconvergence theorem with exact order. Zbl 0535.34020Alimov, Š. A.; Joó, I. 1 1980 On the eigenfunction expansions associated with the Schrödinger operator having spherically symmetrical potential. Zbl 0556.35102Alimov, Sh. A.; Joó, I. 1 1983 Estimation of the Green function of the singular Schrödinger operator. Zbl 0598.35032Joó, I. 1 1985 Stability of interpolative fuzzy KH controllers. Zbl 1047.93030Tikk, Domonkos; Joó, István; Kóczy, László; Várlaki, Péter; Moser, Bernhard 7 2002 Spline techniques for solving first-order evolution equations in Banach spaces. Zbl 0983.65068Györfi, L.; Joó, I.; Sövegjártó, A. 1 2001 Fixed point and equilibrium theorems in pseudoconvex and related spaces. Zbl 0916.90276Forgó, Ferenc; Joó, István 1 1999 On the sequence of numbers of the form \(\varepsilon_0+\varepsilon_1q+\dots+\varepsilon_n q^n\), \(\varepsilon \in\{0,1\}\). Zbl 0896.11006Erdős, Paul; Joó, István; Komornik, Vilmos 7 1998 A general nontopological two-function minimax theorem. Zbl 0938.49006Forgó, Ferenc; Joó, István 6 1998 Approximate controllability of infinite-dimensional bilinear systems. Zbl 0933.93013Zhang, Shenghai; Joó, I. 2 1998 Eigenfunction estimate for a Dirac operator. Zbl 0914.47044Joó, I.; Minkin, A. 6 1997 On some problems concerning expansions by non integer bases. Zbl 0884.11011Joó, I.; Schnitzer, F. J. 2 1997 On Pisot numbers. Zbl 0880.11067Erdős, Pál; Joó, I.; Schnitzer, F. J. 9 1996 Expansions with respect to non-integer bases. Zbl 0941.11003Joó, István; Schnitzer, Franz J. 3 1996 A note on minimax theorems. Zbl 0916.49004Joó, I. 1 1996 Lacunary \((0;0,1)\) interpolation on the roots of Jacobi polynomials and their derivatives, respectively. I (Existence, explicit formulae, unicity). Zbl 0881.41002Joó, I.; Pál, L. G. 1 1996 Convexity, minimax theorems and their applications. Zbl 0856.90130Joó, I.; Kassay, G. 11 1995 Weighted (0,2)-interpolation on the roots of Jacobi polynomials. Zbl 0823.41001Joó, I.; Szili, L. 3 1995 A generalization of Pál interpolation process. Zbl 0830.41004Joó, I.; Szabó, V. E. S. 1 1995 On weighted \((0,2)\) interpolation. Zbl 0853.41001Joó, I. 1 1995 Exponential series in the problems of initial and pointwise control of a rectangular vibrating membrane. Zbl 0863.93041Avdonin, S. A.; Ivanov, S. A.; Joó, I. 1 1995 On the number of \(q\)-expansions. Zbl 0824.11005Erdős, Paul; Joó, István; Komornik, Vilmos 5 1994 On Pál interpolation. Zbl 0822.41002Joó, I. 2 1994 On the control of a circular membrane. I. Zbl 0790.93079Joó, I. 5 1993 On controllability of bilinear system. III: An infinite dimensional case. Zbl 0815.93008Joó, I.; Nguyen Minh Tuan 1 1993 A class of nonlinear population evolution equations in Banach spaces. Zbl 0805.92020Joó, I.; Zhang, Shenghai 1 1993 On the number of expansions \(1=\sum q^{-n_i}\). II. Zbl 0805.11012Erdős, Paul; Joó, I. 1 1993 On the estimate of \((x_{\min}+x_{\max})/2\). II. Zbl 0794.62017Joó, I.; Szabó, S. 1 1993 Local controllability of Lipschitzian discrete time systems with restrained control. Zbl 0864.93025Joo, I.; Nguyen Van Su 1 1993 On the control of a net of strings. Zbl 0810.93003Joó, I. 1 1993 On the number of expansions \(1=\sum q^{-n_i}\). Zbl 0805.11011Erdős, Paul; Joó, I. 21 1992 On a problem of Tamas Varga. Zbl 0787.11002Erdős, Paul; Joó, M.; Joó, I. 13 1992 On the convergence of eigenfunction expansions. Zbl 0807.35103Joó, I. 4 1992 On some notions of harmonic analysis for Sturm-Liouville expansions. Zbl 0786.42015Joó, I. 2 1992 On controllability of some bilinear systems. Zbl 0774.93012Joó, István; Nguyen Minh Tuan 2 1992 A remark on the vibration of a circular membrane in different points. Zbl 0820.73042Joó, I. 1 1992 On Hermite functions. Zbl 0787.33005Joó, I. 1 1992 On controllability of bilinear systems. II: Controllability in two dimensions. Zbl 0800.93150Joó, I.; Nguyen Minh Tuan 1 1992 On the estimate \((x_{\min}+x_{\max})/2\). Zbl 0790.62027Joó, I.; Szabó, S. 1 1992 On the uniqueness of the expansions \(1=\sum q^{-n_i}\). Zbl 0747.11005Erdős, Paul; Horváth, M.; Joó, I. 48 1991 Saturation theorems for Hermite-Fourier series. Zbl 0757.41027Joó, I. 8 1991 On the expansion \(1=\sum q^{-n_i}\). Zbl 0747.11006Erdős, Paul; Joó, I. 5 1991 On some Riesz bases. Zbl 0760.46011Joó, I. 4 1991 Note on multiplicative functions satisfying a congruence property. Zbl 0666.10001Joó, István 4 1991 On an arithmetical property of \(\sqrt 2\). Zbl 0766.11006Joó, I.; Joó, M. 2 1991 On the distribution of the set \(\{\sum^ n_{i=1}\varepsilon _ i q^ i : \varepsilon_ i \in\{0,1\}, n \in \mathbb{N}\}\). Zbl 0766.11005Joó, I. 1 1991 On the control of a circular membrane and related problems. Zbl 0756.35007Joó, I. 1 1991 Characterization of the unique expansions \(1=\sum^{\infty}_{i=1}q^{-n_ i}\) and related problems. Zbl 0721.11005Erdős, Pál; Joó, István; Komornik, Vilmos 84 1990 Family of exponents and controllability of a rectangular membrane. Zbl 0743.93015Avdonin, S. A.; Ivanov, S. A.; Joó, I. 2 1990 On Hermite-conjugate function. Zbl 0753.42011Joó, I. 2 1990 On Riesz bases. II. Zbl 0760.46012Horváth, M.; Joó, I. 1 1990 On super Lehmer pseudoprimes. Zbl 0615.10016Joó, I.; Bui Minh Phong 1 1990 On generalized Lucas pseudoprimes. Zbl 0615.10017Joó, I. 1 1990 A remark on the vibration of a circular membrane in different points. Zbl 0678.73044Joó, István 1 1990 On the divergence of eigenfunction expansions. Zbl 0734.42018Joó, I. 22 1989 On some convexities. Zbl 0713.90099Joó, I. 10 1989 Notes on some papers of V. Komornik on vibrating membranes. Zbl 0727.73035Bogmér, A.; Horváth, M.; Joó, I. 4 1989 On a fixed point theorem. Zbl 0702.47037Joó, I. 2 1989 On Riesz bases from vector exponentials. I. Zbl 0725.30036Avdonin, S. A.; Ivanov, S. A.; Joó, I. 1 1989 On Riesz bases from vector exponentials. II. Zbl 0725.30037Avdonin, S. A.; Ivanov, S. A.; Joó, I. 1 1989 Riesz bases of exponentials and sine-type functions. Zbl 0645.42027Avdonin, S. A.; Joó, I. 10 1988 On Riesz bases. Zbl 0674.46006Joó, I. 5 1988 On the order of approximation by Fejér means of Hermite-Fourier and Laguerre-Fourier series. Zbl 0718.42004Joó, I. 3 1988 Answer to a problem of Paul Turán. Zbl 0733.42007Joó, I.; Nguyen Xuan Ky 3 1988 On some problems of M. Horváth. (Saturation theorems for Walsh-Fourier expansions). Zbl 0685.42013Joó, I. 2 1988 On the uniform Riesz summability of eigenfunction expansions. I. Zbl 0694.35124Joó, I. 1 1988 On the vibration of a string. Zbl 0657.93006Joó, I. 10 1987 Exact estimate for the spectral function of the singular Schrödinger operator. Zbl 0633.35056Joó, I. 6 1987 On Ky Fan convexity. Zbl 0756.90096Horváth, Miklós; Joó, István 3 1987 On a theorem of Miklós Horváth. Zbl 0765.46012Joó, István 1 1987 Minimax theorems and convexity. Zbl 0766.46001Bogmér, Antal; Horváth, Miklós; Joó, István 1 1987 Answer to a problem of M. Horváth and A. Sövegjártó. Zbl 0635.49008Joó, I. 4 1986 On the convergence of eigenfunction expansion in the norm of Sobolev spaces. Zbl 0653.35067Joó, I. 2 1986 Inequalities of Bessel and Hausdorff-Young-Riesz type for functions in the class of radial functions, with respect to a system of eigenfunctions of the Laplace operator. Zbl 0634.47018Il’in, V. A.; Joó, Istvan 1 1986 On the summability of eigenfunction expansions. III. Zbl 0657.35093Joó, I. 1 1986 On the convergence of eigenfunction expansions in \(H^ s\)-norm. Zbl 0593.35030Alimov, Š. A.; Joó, I. 1 1985 Estimation of the Green function of the singular Schrödinger operator. Zbl 0598.35032Joó, I. 1 1985 Note on my paper ”A simple proof for von Neumann’s minimax theorem”. Zbl 0553.49009Joó, I. 10 1984 On the summability of eigenfunction expansions. I. Zbl 0539.35058Joó, I. 3 1984 On the summability of eigenfunction expansions. II. Zbl 0582.35087Joó, I. 2 1984 Remarks to a paper of V. Komornik. Zbl 0591.34024Joó, I. 1 1984 On the equiconvergence of expansions by Riesz bases formed by eigenfunctions of the Schrödinger operator. Zbl 0537.34019Joó, I.; Komornik, V. 13 1983 On the Riesz summability of eigenfunction expansions. Zbl 0554.35030Alimov, Š. A.; Joó, I. 5 1983 A theorem of equiconvergence type. Zbl 0624.34022Joó, I. 2 1983 On the eigenfunction expansions associated with the Schrödinger operator having spherically symmetrical potential. Zbl 0556.35102Alimov, Sh. A.; Joó, I. 1 1983 A note on Ky Fan’s minimax theorem. Zbl 0493.49013Joo, I.; Stacho, L. L. 14 1982 Upper estimates for the eigenfunctions of the Schrödinger operator. Zbl 0524.34027Joo, I. 13 1982 Generalization of an inequality of G. Pólya concerning the eigenfrequencies of vibrating bodies. Zbl 0532.49029Joó, I.; Stachó, L. L. 2 1982 Estimate for the difference of the second derivative of partial sums arising by non-negative selfadjoint extensions of Sturm-Liouville operators. Zbl 0493.34020Joo, I.; Lazetic, N. 2 1981 A simple proof for von Neumann’s minimax theorem. Zbl 0436.49016Joo, I. 3 1980 Some questions of spectral theory for the one-dimensional nonselfadjoint Schrödinger operator with potential in \(L_1\). Zbl 0448.34023Io, I. 1 1980 Equiconvergence theorem with exact order. Zbl 0535.34020Alimov, Š. A.; Joó, I. 1 1980 On summability of orthogonal series. Zbl 0346.42008Alexits, G.; Joo, I.; Tandori, K. 2 1977 An interpolation-theoretical characterization of the classical orthogonal polynomials. Zbl 0296.33012Joó, I. 7 1975 On positive linear interpolation operators. Zbl 0316.41003Joo, I. 3 1975 Interpolation on the roots of Laguerre polynomials. Zbl 0331.41002Joo, I. 3 1975 Stable interpolation on an infinite interval. Zbl 0278.41006Joó, I. 4 1974 all cited Publications top 5 cited Publications all top 5 Cited by 265 Authors 33 Joó, István 27 Komornik, Vilmos 17 Kong, Derong 12 Horváth, Miklós 10 Dajani, Karma 9 de Vries, Martijn 9 Li, Wenxia 7 Baker, Simon 7 Jiang, Kan 7 Loreti, Paola 7 Verma, Ram U. 7 Zou, Yuru 6 Bogmér, Antal 6 Hare, Kevin G. 6 Masáková, Zuzana 5 Kassay, Gábor 5 Lu, Jian 5 Pelantová, Edita 5 Zaïmi, Toufik Mostepha 4 Allaart, Pieter C. 4 Allouche, Jean-Paul Simon 4 Cheng, Cao-Zong 4 Erdős, Pál 4 Li, Yaoqiang 4 Loi, N. H. 4 Pedicini, Marco 4 Serov, Valery S. 4 Yılmaz, Emrah Sercan 4 Yuan, George Xian-Zhi 3 Frenk, Johannes B. G. 3 Grigoryan, Martin Gevorgovich 3 Horváth, Ágota P. 3 Kindler, Jürgen 3 Mathur, Pankaj 3 Shallit, Jeffrey O. 3 Vávra, Tomáš 2 Aihara, Kazuyuki 2 Akgun, Ramazan 2 Alcaraz Barrera, Rafael 2 Avdonin, Sergeĭ Anatol’evich 2 Bandt, Christoph 2 Borwein, Peter Benjamin 2 Chen, Shyiming 2 Feng, De-Jun 2 Frougny, Christiane 2 Gareeb, Mohammad 2 Głąb, Szymon 2 Goktas, Sertac 2 Gulsen, Tuba 2 Hejda, Tomáš 2 Horio, Yoshihiko 2 Jin, Caiyun 2 Kalle, Charlene 2 Kemaloğlu, Hikmet 2 Kim, Won Kyu 2 Kóczy, László T. 2 Kohda, Tohru 2 Kolumbán, József 2 Kritskov, Leonid V. 2 Lai, Anna Chiara 2 Lu, Fan 2 Marchwicki, Jacek 2 Mastroianni, Giuseppe 2 Mathur, Neha 2 Ren, Xiaomin 2 Sargsyan, Artsrun A. 2 Sebestyén, Zoltán 2 Shubov, Marianna A. 2 Sidorov, Nikita A. 2 Šíma, Jiří 2 Skordev, Gencho S. 2 Stachó, László L. 2 Steiner, Wolfgang 2 Tikk, Domonkos 2 Xi, Lifeng 2 Zhang, Qingbang 2 Zhang, Shenghai 2 Zhu, Jiali 1 Akiyama, Shigeki 1 Al-Hammali, Hussain 1 Ambrož, Petr 1 Aryanmehr, S. 1 Ayala, Victor 1 Baiocchi, Claudio 1 Balaj, Mircea 1 Balazs, Catherine 1 Balázs, Katherine 1 Barbé, André M. 1 Barman, Dipto 1 Beauchard, Karine 1 Belinsky, Boris P. 1 Benamar, Hela 1 Benhadid, Samir 1 Benjamini, Itai 1 Billings, Stephen A. 1 Bingham, Nicholas Hugh 1 Boivin, André 1 Bourray, Hamid 1 Boyland, Philip L. 1 Brasco, Lorenzo ...and 165 more Authors all top 5 Cited in 101 Serials 66 Acta Mathematica Hungarica 18 Journal of Number Theory 13 Periodica Mathematica Hungarica 9 Journal of Mathematical Analysis and Applications 7 Transactions of the American Mathematical Society 6 Acta Mathematica Academiae Scientiarum Hungaricae 6 Monatshefte für Mathematik 6 Ergodic Theory and Dynamical Systems 5 Advances in Mathematics 4 Analysis Mathematica 4 Mathematics of Computation 4 Journal of Optimization Theory and Applications 4 Proceedings of the American Mathematical Society 4 Theoretical Computer Science 4 Advances in Applied Mathematics 4 Applied Mathematics Letters 4 Fractals 4 Journal of the European Mathematical Society (JEMS) 3 Computers & Mathematics with Applications 3 Mathematical Methods in the Applied Sciences 3 Mathematical Notes 3 Journal of Approximation Theory 3 Journal of Computational and Applied Mathematics 3 Journal of Differential Equations 3 Numerical Functional Analysis and Optimization 3 Topology and its Applications 3 Indagationes Mathematicae. New Series 3 Journal de Théorie des Nombres de Bordeaux 3 Differential Equations 3 Comptes Rendus. Mathématique. Académie des Sciences, Paris 2 Discrete Applied Mathematics 2 Bulletin de la Société Mathématique de France 2 Fuzzy Sets and Systems 2 Information Sciences 2 Mathematika 2 Results in Mathematics 2 Acta Mathematicae Applicatae Sinica. English Series 2 Annales de la Faculté des Sciences de Toulouse. Mathématiques. Série VI 2 Journal of Mathematical Sciences (New York) 2 Discrete and Continuous Dynamical Systems 1 Applicable Analysis 1 Discrete Mathematics 1 International Journal of Control 1 Inverse Problems 1 Israel Journal of Mathematics 1 Letters in Mathematical Physics 1 Mathematical Proceedings of the Cambridge Philosophical Society 1 Nonlinearity 1 Ukrainian Mathematical Journal 1 Acta Scientiarum Mathematicarum 1 Applied Mathematics and Computation 1 Archiv der Mathematik 1 Colloquium Mathematicum 1 Integral Equations and Operator Theory 1 Journal of Functional Analysis 1 The Journal of the Indian Mathematical Society. New Series 1 Kybernetika 1 Mathematica Slovaca 1 Mathematische Zeitschrift 1 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 1 SIAM Journal on Numerical Analysis 1 Siberian Mathematical Journal 1 Systems & Control Letters 1 Statistics & Probability Letters 1 International Journal of Approximate Reasoning 1 Mathematical and Computer Modelling 1 Neural Networks 1 Annals of Operations Research 1 The Annals of Applied Probability 1 Journal of Contemporary Mathematical Analysis. Armenian Academy of Sciences 1 European Journal of Operational Research 1 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 1 SIAM Journal on Mathematical Analysis 1 Bulletin of the American Mathematical Society. New Series 1 Expositiones Mathematicae 1 Mathematical Programming. Series A. Series B 1 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 1 Applied Mathematics. Series B (English Edition) 1 Turkish Journal of Mathematics 1 Complexity 1 Sbornik: Mathematics 1 Abstract and Applied Analysis 1 Journal of Inequalities and Applications 1 Chaos 1 Communications de la Faculté des Sciences de l’Université d’Ankara. Séries A1. Mathematics and Statistics 1 Acta Mathematica Sinica. English Series 1 International Journal of Applied Mathematics and Computer Science 1 RAIRO. Theoretical Informatics and Applications 1 International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 1 Dynamical Systems 1 Multiscale Modeling & Simulation 1 Analysis in Theory and Applications 1 Analysis and Applications (Singapore) 1 Journal of Function Spaces and Applications 1 Mediterranean Journal of Mathematics 1 Journal of Geometry and Symmetry in Physics 1 Transactions of National Academy of Sciences of Azerbaijan. Series of Physical-Technical and Mathematical Sciences 1 Tbilisi Mathematical Journal 1 Science China. Mathematics 1 Chinese Journal of Mathematics ...and 1 more Serials all top 5 Cited in 40 Fields 105 Number theory (11-XX) 50 Dynamical systems and ergodic theory (37-XX) 38 Partial differential equations (35-XX) 32 Measure and integration (28-XX) 32 Calculus of variations and optimal control; optimization (49-XX) 30 Harmonic analysis on Euclidean spaces (42-XX) 26 Approximations and expansions (41-XX) 26 Operator theory (47-XX) 22 Ordinary differential equations (34-XX) 22 Computer science (68-XX) 22 Systems theory; control (93-XX) 13 Operations research, mathematical programming (90-XX) 12 Real functions (26-XX) 12 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 11 General topology (54-XX) 10 Special functions (33-XX) 9 Functional analysis (46-XX) 8 Sequences, series, summability (40-XX) 8 Numerical analysis (65-XX) 7 Mechanics of deformable solids (74-XX) 6 Convex and discrete geometry (52-XX) 4 Abstract harmonic analysis (43-XX) 4 Probability theory and stochastic processes (60-XX) 4 Information and communication theory, circuits (94-XX) 3 Functions of a complex variable (30-XX) 2 Mathematical logic and foundations (03-XX) 2 Combinatorics (05-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 2 Statistics (62-XX) 2 Quantum theory (81-XX) 2 Biology and other natural sciences (92-XX) 1 General and overarching topics; collections (00-XX) 1 History and biography (01-XX) 1 Field theory and polynomials (12-XX) 1 Commutative algebra (13-XX) 1 Topological groups, Lie groups (22-XX) 1 Integral transforms, operational calculus (44-XX) 1 Algebraic topology (55-XX) 1 Optics, electromagnetic theory (78-XX) 1 Mathematics education (97-XX) Citations by Year