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Comparison theorems for second order delay differential equations
Project Euclid | 1971|Keywords: 34C15 -
On the oscillation of Bôcher's pairs with respect to half-linear differential equations and systems
National licenceSpringer Verlag | 1976|Keywords: Secondary 34C15 -
Einige Existenz- und Einschließungssätze für Fixpunkte expandierender Integraloperatoren
National licenceSpringer Verlag | 1977|Keywords: Secondary 34B15, 34C15, 34A50 -
Families of periodic orbits: local continuability does not imply global continuability
Project Euclid | 1981|Keywords: 34C15 -
On second order sublinear oscillation
National licenceSpringer Verlag | 1984|Keywords: Primary 34C15 -
Maintenance of oscillations under the effect of a strongly bounded forcing term
Project Euclid | 1987|Keywords: 34C15 -
On oscillatory properties of the first order differential equations with one or two retarded arguments
Project Euclid | 1988|Keywords: 34C15 -
Oscillations in second order differential equations with alternating coefficients
National licenceSpringer Verlag | 1988|Keywords: Primary 34C15 -
The existence of limit cycles of nonlinear oscillation equations
Project Euclid | 1990|Keywords: 34C15 -
On bifurcation of limit cycles from centers
National licenceSpringer Verlag | 1990|Keywords: 34C15 -
Homoclinic bifurcation at resonant eigenvalues
National licenceSpringer Verlag | 1990|Keywords: 34C15 -
Persistence of invariant tori in systems of coupled oscillators. I. Regular and singular problems
Project Euclid | 1991|Keywords: 34C15
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