Edit Profile (opens in new tab) Hartman, Philip Co-Author Distance Author ID: hartman.philip Published as: Hartman, Philip; Hartman, P.; Hartman, Philipp; Hartman, Ph. more...less External Links: MGP · Wikidata · GND · IdRef Documents Indexed: 272 Publications since 1937, including 5 Books Co-Authors: 15 Co-Authors with 135 Joint Publications 278 Co-Co-Authors all top 5 Co-Authors 137 single-authored 112 Wintner, Aurel 8 Kershner, Richard B. 6 Van Kampen, Egbert Rudolf 4 Putnam, Calvin R. 2 Calabi, Eugenio 1 Chern, Shiing-Shen 1 Czeslaw, O. 1 D’Archangelo, James 1 Nirenberg, Louis 1 Onuchic, Nelson 1 Sacksteder, Richard 1 Stampacchia, Guido 1 Valentine, Frederick Albert 1 Watson, Geoffrey S. 1 Wilcox, Calvin H. all top 5 Serials 131 American Journal of Mathematics 19 Transactions of the American Mathematical Society 17 Duke Mathematical Journal 13 Proceedings of the American Mathematical Society 7 Rendiconti del Circolo Matemàtico di Palermo. Serie II 6 Journal of Differential Equations 6 SIAM Journal on Mathematical Analysis 5 Pacific Journal of Mathematics 4 Mathematische Annalen 3 Archive for Rational Mechanics and Analysis 3 Canadian Journal of Mathematics 3 Mathematische Zeitschrift 3 Quarterly of Applied Mathematics 3 Journal of the London Mathematical Society 2 American Mathematical Monthly 2 Journal of Mathematical Analysis and Applications 2 Annales Polonici Mathematici 2 Commentarii Mathematici Helvetici 2 Proceedings of the National Academy of Sciences of the United States of America 2 Bollettino della Unione Matematica Italiana. Series III 2 Bulletin of the American Mathematical Society 1 Communications on Pure and Applied Mathematics 1 Zeitschrift für Angewandte Mathematik und Mechanik (ZAMM) 1 Acta Mathematica 1 Annali di Matematica Pura ed Applicata. Serie Quarta 1 The Annals of Probability 1 Annali della Scuola Normale Superiore di Pisa. Classe di Scienze. Serie IV 1 Archiv der Mathematik 1 Boletín de la Sociedad Matemática Mexicana. Segunda Serie 1 Indiana University Mathematics Journal 1 Revista. Serie A. Matematica y Fisica Teorica 1 Journal of Mathematics and Mechanics 1 Physical Review, II. Series 1 Classics in Applied Mathematics 1 Annals of Mathematical Statistics 1 Boletín Matemático 1 The Quarterly Journal of Mathematics. Oxford Series 1 Nonlinear Analysis. Theory, Methods & Applications all top 5 Fields 38 Ordinary differential equations (34-XX) 7 Differential geometry (53-XX) 4 Partial differential equations (35-XX) 4 Probability theory and stochastic processes (60-XX) 3 Abstract harmonic analysis (43-XX) 2 Dynamical systems and ergodic theory (37-XX) 2 Difference and functional equations (39-XX) 2 Integral transforms, operational calculus (44-XX) 2 Fluid mechanics (76-XX) 1 History and biography (01-XX) 1 Number theory (11-XX) 1 Real functions (26-XX) 1 Special functions (33-XX) 1 Integral equations (45-XX) 1 Functional analysis (46-XX) 1 Convex and discrete geometry (52-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 217 Publications have been cited 6,914 times in 6,125 Documents Cited by ▼ Year ▼ Ordinary differential equations. Zbl 0125.32102 Hartman, P. 2,268 1964 On some non-linear elliptic differential functional equations. Zbl 0142.38102 Hartman, P.; Stampacchia, G. 570 1966 Ordinary differential equations. 2nd ed. Reprint. Zbl 0476.34002 Hartman, Philip 381 1982 Ordinary differential equations. 2nd ed., unabridged, corrected republication of the 1982 original. Zbl 1009.34001 Hartman, Philip 319 2002 On the asymptotic behavior of solutions of a differential equation in boundary layer theory. Zbl 0123.21502 Hartman, Philip 142 1964 On spherical image maps whose Jacobians do not change sign. Zbl 0094.16303 Hartman, Philip; Nirenberg, Louis 129 1959 On homotopic harmonic maps. Zbl 0148.42404 Hartman, P. 121 1967 On the local behavior of solutions of non-parabolic partial differential equations. Zbl 0052.32201 Hartman, Philip; Wintner, Aurel 110 1953 On local homeomorphisms of Euclidean spaces. Zbl 0127.30202 Hartman, P. 110 1960 Difference equations: disconjugacy, principal solutions, Green’s functions, complete monotonicity. Zbl 0409.39001 Hartman, Philip 108 1978 A lemma in the theory of structural stability of differential equations. Zbl 0132.31904 Hartman, P. 103 1960 On non-oscillatory linear differential equations of second order. Zbl 0048.06602 Hartman, Philip 94 1952 On functions representable as a difference of convex functions. Zbl 0093.06401 Hartman, Philip 87 1959 Ordinary differential equations. 2nd ed. with some corrections and additions. Zbl 0281.34001 Hartman, Philip 85 1973 Ordinary differential equations. (Obyknovennye differentsial’nye uravneniya.) Übersetzung aus dem Englischen von I.H.Sabitov und Yu.V.Egorov unter Redaktion von V.M.Alekseev. Zbl 0214.09101 Hartman, Philip 81 1970 On the local linearization of differential equations. Zbl 0115.29801 Hartman, P. 78 1963 On boundary value problems for systems of ordinary, nonlinear, second order differential equations. Zbl 0098.06101 Hartman, Philip 78 1960 On the law of the iterated logarithm. JFM 67.0460.03 Hartman, P.; Wintner, A. 68 1941 Asymptotic integrations of linear differential equations. Zbl 0064.08703 Hartman, Philip; Wintner, Aurel 64 1955 Geodesic parallel coordinates in the large. Zbl 0128.16105 Hartman, Philip 61 1964 On the law of the iterated logarithm. Zbl 0024.15802 Hartman, Philip; Wintner, Aurel 59 1941 On completely continuous Hankel matrices. Zbl 0090.09203 Hartman, Philip 55 1959 On hyperbolic partial differential equations. Zbl 0048.33302 Hartman, Philip; Wintner, Aurel 52 1952 On an oscillation criterion of Liapounoff. Zbl 0043.08704 Hartman, Philip; Wintner, Aurel 48 1951 On the infinitesimal generators of integral convolutions. Zbl 0063.01951 Hartman, P.; Wintner, A. 45 1942 On boundary value problems for superlinear second order differential equations. Zbl 0365.34032 Hartman, Philip 45 1977 The spectra of Toeplitz’s matrices. Zbl 0056.11301 Hartman, Philip; Wintner, Aurel 41 1954 Umbilical points and \(W\)-surfaces. Zbl 0055.39601 Hartman, Philip; Wintner, Aurel 40 1954 On N-parameter families and interpolation problems for nonlinear ordinary differential equations. Zbl 0222.34017 Hartman, Philip 38 1971 On dichotomies for solutions of \(n\)-th order linear differential equations. Zbl 0119.07302 Hartman, Ph. 36 1962 ’Normal’ distribution functions on spheres and the modified Bessel functions. Zbl 0305.60033 Hartman, Philip; Watson, Geoffrey S. 36 1974 On the smoothness of isometries. Zbl 0203.54304 Calabi, E.; Hartman, P. 35 1970 Linear differential and difference equations with monotone solutions. Zbl 0051.07105 Hartman, Philip; Wintner, Aurel 35 1953 On the isometric immersions in Euclidean space of manifolds with nonnegative sectional curvatures. II. Zbl 0194.22702 Hartman, Philip 32 1970 On global asymptotic stability of solutions of differential equations. Zbl 0109.06003 Hartman, P.; Czeslaw, O. 32 1962 Unrestricted \(n\)-parameter families. Zbl 0085.04505 Hartman, Philip 30 1958 Differential equations with non oscillatory eigenfunctions. Zbl 0031.30606 Hartman, Philip 29 1948 Self-adjoint, non-oscillatory systems of ordinary, second order, linear differential equations. Zbl 0077.08701 Hartman, Philipp 29 1957 On solutions of the Helmholtz equation in exterior domains. Zbl 0096.07601 Hartman, Philip; Wilcox, Calvin 29 1961 Oscillation criteria for self-adjoint second-order differential systems and ”Principal sectional curvatures”. Zbl 0443.34029 Hartman, Philip 26 1979 On invariant sets and on a theorem of Wazewski. Zbl 0272.34049 Hartman, Philip 23 1972 On the asymptotic integration of ordinary differential equations. Zbl 0188.46102 Hartman, P.; Onuchic, N. 22 1963 On stability in the large for systems of ordinary differential equations. Zbl 0103.05901 Hartman, Philip 22 1961 On the fundamental equations of differential geometry. Zbl 0039.16802 Hartman, Philip; Wintner, Aurel 22 1950 On complete hypersurfaces of nonnegative sectional curvatures and constant mth mean curvature. Zbl 0412.53027 Hartman, Philip 21 1978 Principal solutions of diconjugate \(n\)-th order linear differential equations. Zbl 0184.11603 Hartman, P. 21 1969 On the spectra of Toeplitz’s matrices. Zbl 0035.35903 Hartman, Philip; Wintner, Aurel 21 1950 On the local behavior of solutions of non-parabolic partial differential equations. III. Approximation by spherical harmonics. Zbl 0066.08001 Hartman, Philip; Wintner, Aurel 20 1955 On the third fundamental form of a surface. Zbl 0050.37805 Hartman, Philip; Wintner, Aurel 20 1953 On the local uniqueness of geodesics. Zbl 0039.16803 Hartman, Philip 19 1950 On a comparison theorem for self-adjoint partial differential equations of elliptic type. Zbl 0067.07903 Hartman, Philip; Wintner, Aurel 19 1955 On the non-increasing solutions of \(y"=f(x,y,y')\). Zbl 0042.32601 Hartman, Philip; Wintner, Aurel 19 1951 On uniform Dini conditions in the theory of linear partial differential equations of elliptic type. Zbl 0067.32602 Hartman, Philip; Wintner, Aurel 18 1955 On the problems of geodesics. in the small. Zbl 0042.15605 Hartman, Philip; Wintner, Aurel 18 1951 The number of \(L^2\)-solutions of \(x''+q(t)x=0\). Zbl 0044.31202 Hartman, Philip 17 1951 Asymptotic integrations of ordinary nonlinear differential equations. Zbl 0066.06902 Hartman, Philip; Wintner, Aurel 17 1955 On an ordinary differential equation involving a convex function. Zbl 0196.10703 Hartman, P. 16 1969 On disconjugate differential systems. Zbl 0075.07701 Hartman, Philip; Wintner, Aurel 16 1956 On the asymptotic curves of a surface. Zbl 0042.15701 Hartman, Philip; Wintner, Aurel 16 1951 On isometric immersions in Euclidean space of manifolds with non-negative sectional curvatures. Zbl 0137.14702 Hartman, P. 16 1965 On the bounded slope condition. Zbl 0149.32001 Hartman, Philip 15 1966 A characterization of the spectra of one-dimensional wave equations. Zbl 0035.18303 Hartman, Philip 15 1949 On isometries and on a theorem of Liouville. Zbl 0097.38203 Hartman, Philip 15 1958 A criterion for the non-degeneracy of the wave equation. Zbl 0035.18202 Hartman, Philip; Wintner, Aurel 14 1949 On the assignment of asymptotic values for the solutions of linear differential equations of second order. Zbl 0064.33205 Hartman, Philip; Wintner, Aurel 13 1955 On non-oscillatory linear differential equations. Zbl 0051.06503 Hartman, Philip; Wintner, Aurel 12 1953 A separation theorem for continuous spectra. Zbl 0033.27301 Hartman, Philipp; Wintner, Aurel 12 1949 On sine series with monotone coefficients. Zbl 0050.07206 Hartman, Philip; Wintner, Aurel 12 1953 On disconjugacy criteria. Zbl 0191.38301 Hartman, P. 11 1970 An oscillation theorem for continuous spectra. Zbl 0031.02704 Hartman, Philip; Wintner, Aurel 11 1947 On the solutions of the equation of heat conduction. Zbl 0038.25801 Hartman, Philip; Wintner, Aurel 11 1950 On linear second order differential equations with small coefficients. Zbl 0045.36401 Hartman, Philip 11 1951 The existence of large or small solutions of linear differential equations. Zbl 0102.30301 Hartman, Philip 11 1961 On the products of solutions of second order disconjugate differential equations and the Whittaker differential equations. Zbl 0353.34016 Hartman, Philip 11 1977 On the existence of similar solutions of some boundary layer problems. Zbl 0258.34015 Hartman, Philip 10 1972 On the embedding problem in differential geometry. Zbl 0038.33403 Hartman, Philip; Wintner, Aurel 10 1950 Criteria of non-degeneracy for the wave equation. Zbl 0035.18201 Hartman, Philip; Wintner, Aurel 10 1948 On a theorem of Milloux. Zbl 0035.18204 Hartman, Philip 10 1948 On the linear logarithmico-exponential differential equation of the second order. Zbl 0035.18302 Hartman, Philip 10 1948 The least cluster point of the spectrum of boundary value problems. Zbl 0035.18304 Hartman, Philip; Putnam, Calvin R. 10 1948 On an oscillation criterion of De la Vallée Poussin. Zbl 0066.06404 Hartman, Philip; Wintner, Aurel 10 1955 On monotone solutions of systems of non-linear differential equations. Zbl 0056.08403 Hartman, Philip; Wintner, Aurel 10 1954 On isothermic coordinates. Zbl 0056.40206 Chern, Shiing-shen; Hartman, Philip; Wintner, Aurel 10 1954 Oscillatory and non-oscillatory linear differential equations. Zbl 0040.34002 Hartman, Philip; Wintner, Aurel 9 1949 Unrestricted solution fields of almost-separable differential equations. Zbl 0031.39801 Hartman, Philip 9 1948 On geodesic coordinates. Zbl 0044.17306 Hartman, Philip 9 1951 The divergence of non-harmonic gap series. Zbl 0063.01946 Hartman, Philip 9 1942 On differential equations and the function \({J_\mu}^2 + {Y_\mu}^2\). Zbl 0096.27001 Hartman, Philip 9 1961 Completely monotone families of solutions of \(n\)-th order linear differential equations and infinitely divisible distributions. Zbl 0386.34016 Hartman, Philip 9 1976 Boundary value problems for second order, ordinary differential equations involving a parameter. Zbl 0255.34012 Hartman, Philip 8 1972 On two-point boundary value problems for nonlinear second order systems. Zbl 0297.34015 Hartman, Philip 8 1974 On nonoscillation linear differential equations of second order. Zbl 0412.34017 Hartman, Philip 7 1977 The gaps in the essential spectra of wave equations. Zbl 0038.24804 Hartman, Philip; Putnam, Calvin R. 7 1950 Gaussian curvature and local embedding. Zbl 0044.18402 Hartman, Philip; Wintner, Aurel 7 1951 On the essential spectra of singular eigenvalue problems. Zbl 0054.03902 Hartman, Philip; Wintner, Aurel 7 1950 Normal distributions and the law of the iterated logarithm. JFM 67.0460.04 Hartman, P. 6 1941 On the spherical approach to the normal distribution law. JFM 66.0515.02 Hartman, P.; Wintner, A. 6 1940 Asymptotic integration of ordinary differential equations. Zbl 0545.34038 Hartman, Philip 6 1983 On differential equations, Volterra equations and the function \(J^2_\mu+Y^2_\mu\). Zbl 0277.34007 Hartman, Philip 6 1973 On unbounded Toeplitz matrices. Zbl 0198.46702 Hartman, Philip 6 1963 Ordinary differential equations. 2nd ed., unabridged, corrected republication of the 1982 original. Zbl 1009.34001 Hartman, Philip 319 2002 Asymptotic integration of ordinary differential equations. Zbl 0545.34038 Hartman, Philip 6 1983 Remarks on geodesics. Zbl 0526.53015 Hartman, Philip 1 1983 Ordinary differential equations. 2nd ed. Reprint. Zbl 0476.34002 Hartman, Philip 381 1982 Comparison theorems for self-adjoint second order systems and uniqueness of eigenvalues of scalar boundary value problems. Zbl 0549.34037 Hartman, Philip 1 1981 On the maximum principles of A. D. Alexandrov in the uniqueness theory for hypersurfaces. Zbl 0455.53002 Hartman, Philip 1 1980 Oscillation criteria for self-adjoint second-order differential systems and ”Principal sectional curvatures”. Zbl 0443.34029 Hartman, Philip 26 1979 Uniqueness of principal values, complete monotonicity of logarithmic derivatives of principal solutions, and oscillation theorems. Zbl 0387.34031 Hartman, Philip 3 1979 Some singular nonoscillatory boundary value problems. Zbl 0422.34019 Hartman, Philip 1 1979 Difference equations: disconjugacy, principal solutions, Green’s functions, complete monotonicity. Zbl 0409.39001 Hartman, Philip 108 1978 On complete hypersurfaces of nonnegative sectional curvatures and constant mth mean curvature. Zbl 0412.53027 Hartman, Philip 21 1978 Monotony properties and inequalities for Green’s functions for multipoint boundary value problems. Zbl 0389.34015 Hartman, Philip 3 1978 Linear second order systems of ordinary differential equations and geodesic flows. Zbl 0446.34013 Hartman, Philip 2 1978 On boundary value problems for superlinear second order differential equations. Zbl 0365.34032 Hartman, Philip 45 1977 On the products of solutions of second order disconjugate differential equations and the Whittaker differential equations. Zbl 0353.34016 Hartman, Philip 11 1977 On nonoscillation linear differential equations of second order. Zbl 0412.34017 Hartman, Philip 7 1977 Completely monotone families of solutions of \(n\)-th order linear differential equations and infinitely divisible distributions. Zbl 0386.34016 Hartman, Philip 9 1976 Some characterizations of the Euclidean sphere. Zbl 0361.53002 Hartman, Philip 1 1976 Positive and monotone solutions of linear ordinary differential equations. Zbl 0328.34008 Hartman, Philip 6 1975 Infinite convolutions on locally compact Abelian groups and additive functions. Zbl 0355.60006 Hartman, Philip 2 1975 Integration of ordinary linear differential equations by Laplace- Stieltjes transforms. Zbl 0305.34010 D’Archangelo, James; Hartman, Philip 1 1975 ’Normal’ distribution functions on spheres and the modified Bessel functions. Zbl 0305.60033 Hartman, Philip; Watson, Geoffrey S. 36 1974 On two-point boundary value problems for nonlinear second order systems. Zbl 0297.34015 Hartman, Philip 8 1974 On solutions of disconjugate differential equations. Zbl 0297.34027 Hartman, Philip 3 1974 Logarithmic derivatives of solutions of disconjugate differential equations. Zbl 0293.34017 Hartman, Philip 1 1974 Ordinary differential equations. 2nd ed. with some corrections and additions. Zbl 0281.34001 Hartman, Philip 85 1973 On differential equations, Volterra equations and the function \(J^2_\mu+Y^2_\mu\). Zbl 0277.34007 Hartman, Philip 6 1973 On invariant sets and on a theorem of Wazewski. Zbl 0272.34049 Hartman, Philip 23 1972 On the existence of similar solutions of some boundary layer problems. Zbl 0258.34015 Hartman, Philip 10 1972 Boundary value problems for second order, ordinary differential equations involving a parameter. Zbl 0255.34012 Hartman, Philip 8 1972 On the swirling flow problem. Zbl 0258.34016 Hartman, Philip 5 1972 Convex functions and mean value inequalities. Zbl 0247.26009 Hartman, Philip 3 1972 On N-parameter families and interpolation problems for nonlinear ordinary differential equations. Zbl 0222.34017 Hartman, Philip 38 1971 The swirling flow problem in boundary layer theory. Zbl 0222.34018 Hartman, Philip 6 1971 Corrigendum and addendum: Principal solutions of disconjugate \(n\)-th order linear differential equations. Zbl 0222.34027 Hartman, Philip 3 1971 On third order, non-linear, singular, boundary value problems. Zbl 0204.40202 Hartman, P. 3 1971 Disconjugacy and Wronskians. Zbl 0263.34037 Hartman, Philip 3 1971 Ordinary differential equations. (Obyknovennye differentsial’nye uravneniya.) Übersetzung aus dem Englischen von I.H.Sabitov und Yu.V.Egorov unter Redaktion von V.M.Alekseev. Zbl 0214.09101 Hartman, Philip 81 1970 On the smoothness of isometries. Zbl 0203.54304 Calabi, E.; Hartman, P. 35 1970 On the isometric immersions in Euclidean space of manifolds with nonnegative sectional curvatures. II. Zbl 0194.22702 Hartman, Philip 32 1970 On disconjugacy criteria. Zbl 0191.38301 Hartman, P. 11 1970 Frobenius theorem under Caratheodory type conditions. Zbl 0188.14204 Hartman, P. 2 1970 Principal solutions of diconjugate \(n\)-th order linear differential equations. Zbl 0184.11603 Hartman, P. 21 1969 On an ordinary differential equation involving a convex function. Zbl 0196.10703 Hartman, P. 16 1969 Disconjugate \(n\)-th order differential equations and principal solutions. Zbl 0162.39102 Hartman, P. 6 1968 On disconjugate differential equations. Zbl 0164.38704 Hartman, P. 5 1968 Convex sets and the bounded slope condition. Zbl 0157.37701 Hartman, P. 4 1968 On a class of perturbations of the harmonic oscillator. Zbl 0157.15201 Hartman, P. 2 1968 On homotopic harmonic maps. Zbl 0148.42404 Hartman, P. 121 1967 On quasilinear elliptic functional-differential equations. Zbl 0161.31301 Hartman, P. 3 1967 Interpolating families and generalized convex functions. Zbl 0182.38402 Hartman, P. 1 1967 On some non-linear elliptic differential functional equations. Zbl 0142.38102 Hartman, P.; Stampacchia, G. 570 1966 On the bounded slope condition. Zbl 0149.32001 Hartman, Philip 15 1966 On isometric immersions in Euclidean space of manifolds with non-negative sectional curvatures. Zbl 0137.14702 Hartman, P. 16 1965 Generalized Lyapunov functions and functional equations. Zbl 0196.38201 Hartman, Philip 2 1965 Ordinary differential equations. Zbl 0125.32102 Hartman, P. 2,268 1964 On the asymptotic behavior of solutions of a differential equation in boundary layer theory. Zbl 0123.21502 Hartman, Philip 142 1964 Geodesic parallel coordinates in the large. Zbl 0128.16105 Hartman, Philip 61 1964 On the local linearization of differential equations. Zbl 0115.29801 Hartman, P. 78 1963 On the asymptotic integration of ordinary differential equations. Zbl 0188.46102 Hartman, P.; Onuchic, N. 22 1963 On unbounded Toeplitz matrices. Zbl 0198.46702 Hartman, Philip 6 1963 On uniqueness and differentiability of solutions of ordinary differential equations. Zbl 0116.06502 Hartman, P. 5 1963 A differential equation with non-unique solutions. Zbl 0113.29202 Hartman, P. 1 1963 On dichotomies for solutions of \(n\)-th order linear differential equations. Zbl 0119.07302 Hartman, Ph. 36 1962 On global asymptotic stability of solutions of differential equations. Zbl 0109.06003 Hartman, P.; Czeslaw, O. 32 1962 Aurel Wintner (08.04.1903 - 15.01.1958). Zbl 0106.00401 Hartman, P. 1 1962 On solutions of the Helmholtz equation in exterior domains. Zbl 0096.07601 Hartman, Philip; Wilcox, Calvin 29 1961 On stability in the large for systems of ordinary differential equations. Zbl 0103.05901 Hartman, Philip 22 1961 The existence of large or small solutions of linear differential equations. Zbl 0102.30301 Hartman, Philip 11 1961 On differential equations and the function \({J_\mu}^2 + {Y_\mu}^2\). Zbl 0096.27001 Hartman, Philip 9 1961 On local homeomorphisms of Euclidean spaces. Zbl 0127.30202 Hartman, P. 110 1960 A lemma in the theory of structural stability of differential equations. Zbl 0132.31904 Hartman, P. 103 1960 On boundary value problems for systems of ordinary, nonlinear, second order differential equations. Zbl 0098.06101 Hartman, Philip 78 1960 On spherical image maps whose Jacobians do not change sign. Zbl 0094.16303 Hartman, Philip; Nirenberg, Louis 129 1959 On functions representable as a difference of convex functions. Zbl 0093.06401 Hartman, Philip 87 1959 On completely continuous Hankel matrices. Zbl 0090.09203 Hartman, Philip 55 1959 On exterior derivatives and solutions of ordinary differential equations. Zbl 0104.06904 Hartman, Philip 5 1959 On solutions of \(\Delta V + V =\) in an exterior region. Zbl 0092.31402 Hartman, Philip 4 1959 On the ratio \(f(t+cf^{-\alpha}(t))/f(t)\). Zbl 0086.07001 Hartman, Philip 2 1959 On oscillators with large frequencies. Zbl 0086.07002 Hartman, Philip 1 1959 Unrestricted \(n\)-parameter families. Zbl 0085.04505 Hartman, Philip 30 1958 On isometries and on a theorem of Liouville. Zbl 0097.38203 Hartman, Philip 15 1958 Hölder continuity and non-linear elliptic partial differential equations. Zbl 0079.31403 Hartman, Philip 4 1958 On elliptic partial differential equations and uniqueness theorems for closed surfaces. Zbl 0196.24702 Hartman, P. 3 1958 On integrating factors and on conformal mappings. Zbl 0080.07606 Hartman, Philip 2 1958 Self-adjoint, non-oscillatory systems of ordinary, second order, linear differential equations. Zbl 0077.08701 Hartman, Philipp 29 1957 Perturbation of spectra and Krein extensions. Zbl 0083.11302 Hartman, Philipp 5 1957 Remarks on a uniqueness theorem for closed surfaces. Zbl 0090.38001 Hartman, Philip 5 1957 On maximum principles for non-hyperbolic partial differential operators. Zbl 0085.08301 Hartman, Philip; Sacksteder, Richard 3 1957 On Laurent operators on \(l_ p\). Zbl 0077.10602 Hartman, Philip 2 1957 On disconjugate differential systems. Zbl 0075.07701 Hartman, Philip; Wintner, Aurel 16 1956 On linear and nonlinear perturbations of linear systems of ordinary differential equations with constant coefficents. Zbl 0070.31201 Hartman, Philip; Wintner, Aurel 1 1956 Asymptotic integrations of linear differential equations. Zbl 0064.08703 Hartman, Philip; Wintner, Aurel 64 1955 On the local behavior of solutions of non-parabolic partial differential equations. III. Approximation by spherical harmonics. Zbl 0066.08001 Hartman, Philip; Wintner, Aurel 20 1955 On a comparison theorem for self-adjoint partial differential equations of elliptic type. Zbl 0067.07903 Hartman, Philip; Wintner, Aurel 19 1955 On uniform Dini conditions in the theory of linear partial differential equations of elliptic type. Zbl 0067.32602 Hartman, Philip; Wintner, Aurel 18 1955 Asymptotic integrations of ordinary nonlinear differential equations. Zbl 0066.06902 Hartman, Philip; Wintner, Aurel 17 1955 On the assignment of asymptotic values for the solutions of linear differential equations of second order. Zbl 0064.33205 Hartman, Philip; Wintner, Aurel 13 1955 On an oscillation criterion of De la Vallée Poussin. Zbl 0066.06404 Hartman, Philip; Wintner, Aurel 10 1955 On linear, second order differential equations in the unit circle. Zbl 0065.07303 Hartman, Philip; Wintner, Aurel 2 1955 ...and 117 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 6,369 Authors 46 Hartman, Philip 35 Agarwal, Ravi P. 29 Yao, Jen-Chih 28 Henderson, Johnny Lee 27 Erbe, Lynn Harry 24 Gesztesy, Fritz 23 Dang Van Hieu 23 Kumam, Poom 22 Peterson, Allan C. 22 Valls Anglés, Cláudia 20 Barreira, Luis Manuel 20 Özbekler, Abdullah 20 Šimon Hilscher, Roman 20 Wong, James S. W. 19 Schmitt, Klaus 18 Diblík, Josef 18 Giesl, Peter 18 Marini, Mauro 18 O’Regan, Donal 18 Papageorgiou, Nikolaos S. 18 Pinto, Manuel 18 Zafer, Ağacık 17 Došlý, Ondřej 17 Eloe, Paul W. 17 Kashchenko, Sergeĭ Aleksandrovich 17 Li, Deli 17 Rosalsky, Andrew 16 Trench, William F. 15 Došlá, Zuzana 15 Šepitka, Peter 15 Tisdell, Christopher C. 15 Xia, Yonghui 14 Akhmet, Marat Ubaydulla 14 Cecchi, Mariella 14 Džurina, Jozef 14 Kiguradze, Ivan Tarielovich 14 Mustafa, Octavian G. 13 Aseev, Sergei M. 13 Atkinson, Frederick Valentine 13 Llibre, Jaume 13 Mawhin, Jean 13 Staněk, Svatoslav 12 Çakmak, Devrim 12 Dragičević, Davor 12 Fonda, Alessandro 12 Gálvez, Jose Antonio 12 Huang, Nan-Jing 12 Khailov, Evgenii N. 12 Kwong, Man Kam 12 Naito, Manabu 12 Wei, Zhongli 11 Chen, Shaozhu 11 Grigorieva, Ellina V. 11 Kong, Qingkai 11 Minguzzi, Ettore 11 Mirzoev, Karakhan Agakhan 11 Miyamoto, Yasuhito 11 Putnam, Calvin R. 11 Rachůnková, Irena 11 Samet, Bessem 11 Tiryaki, Aydin 10 Boccardo, Lucio 10 Fečkan, Michal 10 Gustafson, Grant B. 10 Hallam, Thomas G. 10 Hornung, Peter 10 Jitpeera, Thanyarat 10 Knowles, Ian Walker 10 Lakshmikantham, Vangipuram 10 Meng, Fanwei 10 Rogovchenko, Yuri V. 10 Simon, Barry 10 Slyusarchuk, Vasyl Yukhimovich 10 Thompson, Harold Bevan 10 Xu, Zhiting 10 Yang, Xiaojing 10 Zanolin, Fabio 9 Ali, Rehan 9 Barton, Paul I. 9 Bebernes, Jerrold W. 9 Browder, Felix Earl 9 Cubiotti, Paolo 9 Dong, Yujun 9 Donnelly, Harold 9 Eastham, Michael S. P. 9 Grigoryan, Gevorg Avagovich 9 Kiguradze, Tariel I. 9 Lutz, Donald A. 9 Mira, Pablo 9 Muldowney, James S. 9 Pašić, Mervan 9 Qian, Dingbian 9 Ramos, Juan I. 9 Tanaka, Satoshi 9 Taras’ev, Aleksandr Mikhaĭlovich 9 Zettl, Anton 9 Zhang, Wenmeng 8 Backes, Lucas H. 8 Cho, Yeol Je 8 Coffman, Charles V. ...and 6,269 more Authors all top 5 Cited in 672 Serials 411 Journal of Mathematical Analysis and Applications 399 Journal of Differential Equations 181 Proceedings of the American Mathematical Society 145 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 132 Transactions of the American Mathematical Society 101 Nonlinear Analysis. Theory, Methods & Applications 98 Archive for Rational Mechanics and Analysis 98 Applied Mathematics and Computation 91 Computers & Mathematics with Applications 91 Annali di Matematica Pura ed Applicata. Serie Quarta 84 Mathematische Zeitschrift 74 Applied Mathematics Letters 68 Mathematical Notes 66 Mathematische Annalen 66 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 65 Journal of Optimization Theory and Applications 65 Journal of Mathematical Sciences (New York) 59 Journal of Functional Analysis 44 Czechoslovak Mathematical Journal 41 Communications in Mathematical Physics 40 The Journal of Geometric Analysis 39 Physica D 38 Rocky Mountain Journal of Mathematics 38 Journal of Computational and Applied Mathematics 38 Journal of Inequalities and Applications 37 Ukrainian Mathematical Journal 37 Advances in Mathematics 37 Tôhoku Mathematical Journal. Second Series 36 Mathematical Methods in the Applied Sciences 36 Siberian Mathematical Journal 35 Journal of Dynamics and Differential Equations 33 Applicable Analysis 33 Bulletin of the American Mathematical Society 31 Abstract and Applied Analysis 30 Differential Equations 29 Optimization 29 Calculus of Variations and Partial Differential Equations 29 Journal of Difference Equations and Applications 28 Inventiones Mathematicae 28 Stochastic Processes and their Applications 28 Proceedings of the Steklov Institute of Mathematics 27 Bulletin of the Australian Mathematical Society 27 Mathematica Slovaca 27 Zeitschrift für Wahrscheinlichkeitstheorie und Verwandte Gebiete 27 Annales de l’Institut Henri Poincaré. Analyse Non Linéaire 26 Discrete and Continuous Dynamical Systems. Series B 25 Mathematical and Computer Modelling 24 Results in Mathematics 24 Advances in Difference Equations 23 Journal of Applied Mathematics and Mechanics 23 Systems & Control Letters 22 Journal of Mathematical Physics 22 Mathematical Biosciences 22 Automatica 22 Journal of Global Optimization 22 Nonlinear Analysis. Real World Applications 21 ZAMP. Zeitschrift für angewandte Mathematik und Physik 21 Archiv der Mathematik 21 Communications in Partial Differential Equations 20 Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica 20 Integral Equations and Operator Theory 20 Journal of Economic Theory 20 Statistics & Probability Letters 20 Annals of Global Analysis and Geometry 20 Qualitative Theory of Dynamical Systems 20 Boundary Value Problems 19 Journal of Geometry and Physics 19 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 18 Manuscripta Mathematica 18 Mathematische Nachrichten 18 Numerische Mathematik 18 Discrete and Continuous Dynamical Systems 18 Acta Mathematica Sinica. English Series 18 Journal of Fixed Point Theory and Applications 17 Duke Mathematical Journal 17 Rendiconti del Circolo Matemàtico di Palermo. Serie II 17 Linear Algebra and its Applications 16 Journal d’Analyse Mathématique 16 Mathematical Proceedings of the Cambridge Philosophical Society 16 Applied Mathematics and Optimization 16 Functional Analysis and its Applications 16 Monatshefte für Mathematik 16 Mathematical Programming. Series A. Series B 15 Journal of Mathematical Biology 15 Journal of Soviet Mathematics 15 Fixed Point Theory and Applications 14 International Journal of Control 14 Israel Journal of Mathematics 14 Nonlinearity 14 Chaos, Solitons and Fractals 14 Annales de l’Institut Fourier 14 Journal of Approximation Theory 14 Journal of Nonlinear Science 14 Communications in Contemporary Mathematics 14 Comptes Rendus. Mathématique. Académie des Sciences, Paris 13 Ergodic Theory and Dynamical Systems 13 Zeitschrift für Analysis und ihre Anwendungen 13 Aequationes Mathematicae 13 Journal de Mathématiques Pures et Appliquées. Neuvième Série 13 European Series in Applied and Industrial Mathematics (ESAIM): Control, Optimization and Calculus of Variations ...and 572 more Serials all top 5 Cited in 59 Fields 2,277 Ordinary differential equations (34-XX) 1,098 Partial differential equations (35-XX) 695 Operator theory (47-XX) 669 Dynamical systems and ergodic theory (37-XX) 573 Differential geometry (53-XX) 549 Calculus of variations and optimal control; optimization (49-XX) 319 Numerical analysis (65-XX) 310 Probability theory and stochastic processes (60-XX) 296 Global analysis, analysis on manifolds (58-XX) 261 Biology and other natural sciences (92-XX) 251 Operations research, mathematical programming (90-XX) 244 Systems theory; control (93-XX) 237 Difference and functional equations (39-XX) 207 Fluid mechanics (76-XX) 177 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 137 Real functions (26-XX) 114 Mechanics of particles and systems (70-XX) 104 Mechanics of deformable solids (74-XX) 99 Functions of a complex variable (30-XX) 99 Functional analysis (46-XX) 84 Statistics (62-XX) 76 Quantum theory (81-XX) 75 Manifolds and cell complexes (57-XX) 63 Several complex variables and analytic spaces (32-XX) 62 Integral equations (45-XX) 61 Special functions (33-XX) 60 Computer science (68-XX) 59 Relativity and gravitational theory (83-XX) 58 Harmonic analysis on Euclidean spaces (42-XX) 50 General topology (54-XX) 47 Statistical mechanics, structure of matter (82-XX) 39 Approximations and expansions (41-XX) 39 Optics, electromagnetic theory (78-XX) 37 Measure and integration (28-XX) 35 Potential theory (31-XX) 33 Convex and discrete geometry (52-XX) 32 Algebraic geometry (14-XX) 31 Linear and multilinear algebra; matrix theory (15-XX) 29 Classical thermodynamics, heat transfer (80-XX) 23 Information and communication theory, circuits (94-XX) 22 Number theory (11-XX) 18 Combinatorics (05-XX) 16 Algebraic topology (55-XX) 15 Topological groups, Lie groups (22-XX) 13 Mathematical logic and foundations (03-XX) 13 Nonassociative rings and algebras (17-XX) 13 Astronomy and astrophysics (85-XX) 13 Geophysics (86-XX) 10 History and biography (01-XX) 10 Integral transforms, operational calculus (44-XX) 9 Abstract harmonic analysis (43-XX) 9 Geometry (51-XX) 8 General and overarching topics; collections (00-XX) 7 Group theory and generalizations (20-XX) 6 Sequences, series, summability (40-XX) 5 Field theory and polynomials (12-XX) 4 Category theory; homological algebra (18-XX) 3 Order, lattices, ordered algebraic structures (06-XX) 2 Mathematics education (97-XX) Citations by Year Wikidata Timeline The data are displayed as stored in Wikidata under a Creative Commons CC0 License. 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