Keywords: 34C15; 34C25; 58F; Boundary value problem; Periodic nonlinearity; Rabinowitz's Saddle Point theorem;
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Keywords: 34C05; 34C29; 34C25; Phase portrait; Homoclinic loop; Bifurcation;
Keywords: 34C25; Kepler problem; Periodic solutions; Rotational symmetric systems;
Keywords: 15B48; 34D23; 34C25; 37C65; 92D25; Dynamical systems; Periodic forcing; Seasonality; Population dynamics;
Keywords: 34C25; 37B30; 37J45; Asymptotically linear Hamiltonian systems; Rotating periodic solutions; Morse theory;
Keywords: 34B16; 34C25; 65G40; 37M20; Brillouin focusing beam equation; Computer-assisted proof; Fold bifurcation; Periodic solutions; Non-autonomous singular ODEs;
Keywords: 34C15; 34C25; 70F10; 3-body problems with 2 fixed centers; Variational minimization; Newtonian potentials; Circular solutions;
Keywords: Analytical solution; Strongly nonlinear oscillator; Homotopy perturbation method; Variational approach; 34A34; 34C15; 34C25; 35L65; 37N30; 74S25;
Keywords: primary; 34A36; 34C07; 34C25; 34C29; 34M35; 37G15; Polynomial vector field; Periodic orbit; Uniform isochronous center;
Keywords: 34C15; 34C25; 70F07; Four-body problem; Convex central configurations; Isosceles trapezoid; Triangle areas;
Keywords: Generalized Nonsmooth Saddle Point Theorem; Impact; Periodic bouncing solution; Second order Hamiltonian systems; 70H05; 49J35; 58E30; 34C25; 74M20; 74G35;
Keywords: primary; 34C15; 34C25; Center; Limit cycle; Averaging method; Phase portrait; Generalized Kukles system;
Keywords: 58E05; 34C25; Periodic solution; Hamiltonian system; Resonance; Critical group; Maslov-type index;
Keywords: 34C25; 34K13; 70K40; 34C40; Retarded functional differential equations; Multiplicity of periodic solutions; Forced motion on manifolds; Degree of a tangent vector field;
Keywords: 34C25; 35Q84; 60H10; Fokker-Planck equations; Stochastic differential equations; Periodic solutions; Halanay's criterion; Lyapunov's functions;
Keywords: 37J25; 37J45; 37C27; 34C25; Hamiltonian dynamics; Periodic orbits; Asymptotic stability with phase;
Keywords: 34C25; 34B16; 34B18; 47H11; Singular differential equation; Indefinite singularity; Periodic solution; Degree theory;
Keywords: primary; 35R09; secondary; 34B10; 34C25; 47H11; Nonlocal diffusion; Second order integro-partial differential equation; Approximation solvability method; Periodic solution; Nonlocal condition; Degree theory;
Keywords: 34B18; 34B15; 34C25; 47H11; Superlinear indefinite problems; Positive periodic solutions; Multiplicity results; Subharmonic solutions; Neumann boundary value problems; Coincidence degree;
Keywords: Galactic potential; Family of periodic orbits; Averaging theory; 34C10; 34C25;
Keywords: Limit cycle; Abelian integral; Nilpotent singular point; Hyper-elliptic Hamiltonian system; Heteroclinic loop34C05; 34C29; 34C25
Keywords: 34C20; 34C25; 92E20Autocatalytic chemical systems; Microbial growth and competition; Traveling wave
Keywords: 34C25; 34C23; Periodic solutions; Hopf bifurcation; Routh-Hurwitz criterion; Sustainability; Bendixson's negative criterion;
Keywords: 34C25; 49S05Periodic solution; Lagrange system; Minimal curve; Action potential
Keywords: 34C14; 34C15; 34C25; Symmetric solution; Symmetry; Odd solution; Periodic solution; Anti-periodic solution; Averaging;
Keywords: 35Q35; 34C25; Camassa-Holm equation; Traveling wave solution; Wave length; Wave height; Center; Critical period;
Keywords: 34C23; 34C25; 34A60; 47H04Global bifurcation; Differential inclusion; Differential variational inequality; Differential complementarity problem; Guiding function; Periodic solution
Keywords: 34C25; 34B15; 34D15Impulsive differential equation; Periodic solutions; Poincaré–Birkhoff theorem; Partial twist fixed point theorem
Keywords: 34C20; 34C25; 92E20Microbial growth in a flow reactor; Isothermal chemical systems with decay; Traveling wave; Existence; Non-existence
Keywords: primary; 34C25; secondary; 37C27; 37K10; 42A10; 42B05; Harmonic Balance Method; Period function; Hamiltonian potential system; Fourier series;
Keywords: 34C25; 34C07; Abel equation; Composition condition; Periodic orbits; Centers;
Keywords: 58F05; 58E05; 34C25; 58F10; Hamiltonian system; Boundary value problem; Delay differential system;
Keywords: 34C25; 57M25; 70K65
Existence of periodic solutions for a class of second-order p-Laplacian systems
Keywords: Periodic solution; Critical point; Sobolev's inequality; Primary 34K13; 34C25; 35B38;
No periodic orbits in the Bianchi models B
Keywords: 34C05; 34C25; 34C60; Bianchi cosmological models; Periodic orbits; Invariant hyperplanes;
New periodic solutions for some planar N+3-body problems with Newtonian potentials
Keywords: 34C15; 34C25; 58F; N+3-body problems; Periodic solutions; Winding numbers; Variational minimizers;
On anti-periodic solutions for neutral shunting inhibitory cellular neural networks with time-varying delays and D operator
Keywords: Neutral shunting inhibitory cellular neural networks; Anti-periodic solution; Exponential stability; D operator; Time-varying delays; 34C25; 34K13; 34K25;
A criticality result for polycycles in a family of quadratic reversible centers
Keywords: 34C07; 34C23; 34C25; Center; Period function; Critical periodic orbit; Bifurcation; Criticality;
Existence and uniqueness of solutions to Orlicz Minkowski problems involving 0â¯<â¯pâ¯<â¯1
Keywords: 34B16; 34C25; 52A40; Orlicz Minkowski problem; Variational method;
The band spectrum of the periodic Airy-Schrödinger operator on the real line
Keywords: 34C25; 34E05; 34L40; 81Q80; Semiclassical analysis; Periodic Schrödinger operators; Airy equation; Spectral bands; Spectral gaps;
Global exponential convergence of neutral-type Hopfield neural networks with multi-proportional delays and leakage delays
Keywords: Neutral-type Hopfield neural networks; Exponential convergence; Leakage delay; Proportional delay; 34C25; 34K13; 34K25;
On a singular periodic Ambrosetti-Prodi problem
Keywords: 34C25; Periodic solutions; Multiplicity results; Lower and upper solutions; Singularities; Rotating solutions;
The existence of minimum speed of traveling wave solutions to a non-KPP isothermal diffusion system
Keywords: 34C20; 34C25; 92E20; Traveling wave; Minimum speed; Isothermal diffusion system; Existence;
Center problem for trigonometric Liénard systems
Keywords: primary; 34C25; secondary; 37C10; 37C27; Center problem; Trigonometric Liénard equation; Trigonometric polynomial;
Limit cycles of the classical Liénard differential systems: A survey on the Lins Neto, de Melo and Pugh's conjecture
Keywords: primary; 34C05; 34C23; secondary; 34C25; 34C29; Liénard system; Limit cycle; Conjecture of Lins Neto, de Melo and Pugh;
A new index theory for GL+(2)-paths with applications to asymptotically linear systems
Keywords: 58E05; 34A30; 34C25; Index theory; General matrix path; Periodic solution; Asymptotically linear systems;
An avoiding cones condition for the Poincaré-Birkhoff Theorem
Keywords: 34C25; 37C27; Poincaré-Birkhoff Theorem; Avoiding cones condition; Hamiltonian systems; Periodic solutions;
Existence and asymptotic behavior of nontrivial solutions to the Swift-Hohenberg equation
Keywords: 34C25; 35A24; 35B38; 65L03; Critical point theory; Higher-order ordinary differential equations; Swift-Hohenberg equation;
Existence of solitary waves and periodic waves for a perturbed generalized BBM equation
Keywords: 34C25; 34C60; 37C27BBM equation; Traveling wave; Picard–Fuchs equation; Abelian integral
Floquet theory based on new periodicity concept for hybrid systems involving q-difference equations
Keywords: Floquet; Hybrid system; Lyapunov; Periodicity; Shift operators; Stability34K13; 34C25; 39A13; 34N05