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47E05 Ordinary differential operators (33 articles)

• Attalienti, Antonio; Rasa, Ioan: Shape-preserving properties and asymptotic behaviour of the semigroup generated by the Black-Scholes operator. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 2, pp. 457-467
• Ibrahim, Sobhy El-sayed: The spectra of general differential operators in the direct sum spaces. (English). Czechoslovak Mathematical Journal, vol. 54 (2004), issue 1, pp. 9-29
• Ra'ed, Hatamleh: A functional model for a family of operators induced by Laguerre operator. (English). Archivum Mathematicum, vol. 39 (2003), issue 1, pp. 11-25
• Hilscher, Roman: Spectral properties of general self-adjoint, even order differential operators. (English). Mathematica Slovaca, vol. 50 (2000), issue 2, pp. 165-186
• Tunca, Gülen Başcanbaz; Bairamov, Elgiz: Discrete spectrum and principal functions of non-selfadjoint differential operator. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 4, pp. 689-700
• Ibrahim, Sobhy El-sayed: On $L^2_w$-quasi-derivatives for solutions of perturbed general quasi-differential equations. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 4, pp. 877-890
• Brown, R. C.; Hinton, D. B.: Two separation criteria for second order ordinary or partial differential operators. (English). Mathematica Bohemica, vol. 124 (1999), issue 2, pp. 273-292
• Lazhari, M. N.: Paley-Wiener theorems for the Schrodinger operator on $\Bbb R$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 39 (1998), issue 2, pp. 227-235
• Barnovská, Maria; Tikhomirov, Viktor Vasiľevich: О базисности Рисса корневых векторов нелокальных задач для системы дифференциальных уравнений. (Russian) [On the Riesz basis property of the root vectors of nonlocal problems for a system of differential equations]. Mathematica Slovaca, vol. 43 (1993), issue 2, pp. 193-205
• Rovderová, Eva: Existence of solution to nonlinear boundary value problem for ordinary differential equation of the second order in Hilbert space. (English). Mathematica Bohemica, vol. 117 (1992), issue 4, pp. 415-424
• Moiseev, Evgenij Ivanovich; Barnovská, Mária: О безусловной базисности системы собственных и присоединенных функций дифференциального оператора первого порядка в пространствах вектор—функций. (Russian) [Unconditional basis property of the system of eigen- and associated functions for a first-order differential operator in spaces of vector functions]. Mathematica Slovaca, vol. 40 (1990), issue 3, pp. 325-336
• Chiappinelli, Raffaele: Estimates on the eigenvalues for some nonlinear ordinary differential operators. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 30 (1989), issue 3, pp. 441-446
• Avgerinos, Evgenios P.; Papageorgiou, Nikolaos S.: Non-convex perturbations of evolution equations with $m$-dissipative operators in Banach spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 30 (1989), issue 4, pp. 657-664
• Herrmann, Leopold: A study of an operator arising in the theory of circular plates. (English). Aplikace matematiky, vol. 33 (1988), issue 5, pp. 337-353
• Horová, Ivana: Linear positive operators and their applications to differential equations. (English). Archivum Mathematicum, vol. 20 (1984), issue 1, pp. 1-8
• Vencková, Magdalena: Oscillation of a forced nonlinear differential equation. (English). Archivum Mathematicum, vol. 20 (1984), issue 2, pp. 59-68
• Brown, Richard C.; Tvrdý, Milan; Vejvoda, Otto: Duality theory for linear $n$-th order integro-differential operators with domain in $L^p_m$ determined by interface side conditions. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 2, pp. 183-196
• Rzepecki, Bogdan: On measures of noncompactness in topological vector spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 23 (1982), issue 1, pp. 105-116
• Everitt, William Norrie; Wray, S. D.: A singular spectral identity and inequality involving the Dirichlet integral of an ordinary differential expression. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 4, pp. 589-607
• Wrobel, Volker: Tensor products of linear operators in locally convex spaces. (English). In: Frolík, Zdeněk (ed.): Proceedings of the 10th Winter School on Abstract Analysis. Circolo Matematico di Palermo, Palermo, 1982. pp. [299]-315
• Brown, Richard C.; Tvrdý, Milan: Generalized boundary value problems with abstract side conditions and their adjoints. II. (English). Czechoslovak Mathematical Journal, vol. 31 (1981), issue 4, pp. 501-509
• Janovský, V.; Marek, I.; Neuberg, J.: Maxwell's equations with incident wave as a field source. (English). In: Greguš, Michal (ed.): Equadiff 5. Proceedings of the Fifth Czechoslovak Conference on Differential Equations and Their Applications held in Bratislava, August 24-28, 1981. BSB B.G. Teubner Verlagsgesellschaft, Leipzig, 1982. pp. 237-240
• Levin, Anatoliĭ: Факторизация и непонижение осцилляции на окружности. (Russian) [Factorization and nonlowering of oscillations at the boundary]. In: Greguš, Michal (ed.): Equadiff 5. Proceedings of the Fifth Czechoslovak Conference on Differential Equations and Their Applications held in Bratislava, August 24-28, 1981. BSB B.G. Teubner Verlagsgesellschaft, Leipzig, 1982. pp. 226-227
• Brown, Richard C.; Tvrdý, Milan: Generalized boundary value problems with abstract side conditions and their adjoints. I. (English). Czechoslovak Mathematical Journal, vol. 30 (1980), issue 1, pp. 7-(27)
• Elschner, Johannes; Silbermann, Bernd: Eine Klasse entarteter gewöhnlicher Differentialgleichungen und das Kollokationsverfahren zu ihrer Lösung. (German) [A class of degenerate ordinary differential equations and the collocation method for their solution]. Czechoslovak Mathematical Journal, vol. 29 (1979), issue 4, pp. 551-563
• Brown, Richard C.; Tvrdý, Milan: Generalized boundary value problems with abstract side conditions and their adjoints. I. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 20 (1979), issue 1, pp. 191
• Coddington, E. A.: Differential subspaces associated with pairs of ordinary differential operators. (English). In: Fábera, Jiří (ed.): Equadiff IV. Czechoslovak Conference on Differential Equations and Their Applications. Proceedings, Prague, August 22-26, 1977. Springer-Verlag, Berlin, 1979. pp. [64]-72
• Suchomel, Jaromír: Разложение линейных однородных дифференциальных операторов на сомножители 1-го порядка. (Russian) [Decomposition of linear homogeneous differential operators into first order factors]. Archivum Mathematicum, vol. 12 (1976), issue 4, pp. 191-198
• Barnovská, Mária: О спектре несамосопряженного дифференциального оператора второго порядка с комплекснозначным переменным коэффициентом при старшей производной на полуоси. (Russian) [The spectrum of a nonselfadjoint second order differential operator on the half-axis, with a complex-valued variable coefficient for the highest derivative]. Czechoslovak Mathematical Journal, vol. 24 (1974), issue 3, pp. 349-358
• Everitt, William Norrie; Giertz, Magnus: On limit-point and separation criteria for linear differential expressions. (English). In: Ráb, Miloš and Vosmanský, Jaromír (eds.): Proceedings of Equadiff III. 3rd Czechoslovak Conference on Differential Equations and Their Applications. Brno, Czechoslovakia, August 28 - September 1, 1972. Univ. J. E. Purkyně - Přírodovědecká fakulta, Brno, 1973. pp. 31-42
• Suchomel, Jaromír: Über die Zerlegungen von linearen homogenen Differentialoperatoren in Operatoren erster Ordnung. (German) [Partition of linear homogeneous differential equations into operators of first order]. Časopis pro pěstování matematiky, vol. 97 (1972), issue 2, pp. 198-200
• Suchomel, Jaromír: Über die Zerlegungen von linearen homogenen Differentialoperatoren. (German) [On decompositions of linear homogeneous differential operators]. Czechoslovak Mathematical Journal, vol. 21 (1971), issue 4, pp. 696-699
• Kratochvíl, Alexander; Nečas, Jindřich: О дискретности спектра нелинейного уравнения Штурма - Лиувилля четвертого порядка. (Russian) [The discreteness of the spectrum of a nonlinear Sturm-Liouville equation of fourth order]. Commentationes Mathematicae Universitatis Carolinae, vol. 12 (1971), issue 4, pp. 639-653