Found 50 Documents (Results 1–50)
Principal eigenvalues of elliptic problems with singular potential and bounded weight function. (English) Zbl 1538.35138
Boundedness and stability of global solutions for some superlinear and nonautonomous heat equations. (English) Zbl 1518.35124
Liouville type theorems and periodic solutions for the nonhomogeneous parabolic systems. (English) Zbl 1518.35170
Characterizing the existence of positive periodic solutions in the weighted periodic-parabolic degenerate logistic equation. (English) Zbl 1501.35022
Singular curve and critical curve for doubly nonlinear Lane-Emden type equations. (English) Zbl 1473.35349
Asymptotics of the principal eigenvalue for a linear time-periodic parabolic operator. II: Small diffusion. (English) Zbl 1465.35032
Nonexistence of global positive solutions of weakly coupled systems of semilinear parabolic equations with time-periodic coefficients. (English. Russian original) Zbl 1444.35094
Differ. Equ. 56, No. 6, 721-733 (2020); translation from Differ. Uravn. 56, No. 6, 732-744 (2020).
Global structure of the periodic positive solutions for a general class of periodic-parabolic logistic equations with indefinite weights. (English) Zbl 1435.35026
Principal eigenvalue and maximum principle for cooperative periodic-parabolic systems. (English) Zbl 1404.35248
Reaction-diffusion problems on time-dependent Riemannian manifolds: stability of periodic solutions. (English) Zbl 1404.35032
Positive periodic solutions of the weighted \(p\)-Laplacian with nonlinear sources. (English) Zbl 1396.35043
Almost periodic solutions of sublinear heat equations. (English) Zbl 1378.35151
Reviewer: Dian K. Palagachev (Bari)
Spectral theory for nonlocal dispersal operators with time periodic indefinite weight functions and applications. (English) Zbl 1362.45002
On the existence and uniqueness of time periodic solutions for a semilinear heat equation in the whole space. (English) Zbl 1357.35021
Instability of positive periodic solutions for semilinear pseudo-parabolic equations with logarithmic nonlinearity. (English) Zbl 1358.35063
Reviewer: Georg Hetzer (Auburn)
Periodic-parabolic eigenvalue problems with a large parameter and degeneration. (English) Zbl 1382.35121
Liouville theorems, universal estimates and periodic solutions for cooperative parabolic Lotka-Volterra systems. (English) Zbl 1515.35054
Periodic solutions of the evolutionary \(p\)-Laplacian with nonlinear sources. (English) Zbl 1207.35203
Reviewer: Peter Lindqvist (Trondheim)
Global bifurcation of periodic solutions in nonlinear evolution problems with periodic forcing. (English) Zbl 1180.35088
Some results on principal eigenvalues for periodic parabolic problems with weight. (English) Zbl 1136.35427
A semilinear parabolic system for migration and selection in population genetics. (English) Zbl 1006.35046
Reviewer: Jan Cholewa (Katowice)
On principal eigenvalues for periodic parabolic problems with optimal condition on the weight function. (English) Zbl 0988.35067
Reviewer: Ion Onciulescu (Iaşi)
Existence and stability of periodic quasisolutions in nonlinear parabolic systems with discrete delays. (English) Zbl 0970.35004
Reviewer: Ion Onciulescu (Iaşi)
On positive solutions of some periodic parabolic eigenvalue problem with a weight function. (English) Zbl 0937.35005
Reviewer: Ivan Ginchev (Varna)
Periodic-parabolic eigenvalue problems with indefinite weight functions. (English) Zbl 0874.35075
Reviewer: X.-P.Wang (Nantes)
Existence of stable and unstable solutions for semilinear parabolic problems with a jumping nonlinearity. (English) Zbl 0902.35057
Change of stability for Schrödinger semigroups. (English) Zbl 0838.35050
Reviewer: J.Diblík (Brno)
MSC:
35K20
Positive unstable periodic solutions for superlinear parabolic equations. (English) Zbl 0828.35063
Reviewer: G.Aniculaesei (Iaşi)
The singular perturbation problem for the periodic-parabolic logistic equation with indefinite weight functions. (English) Zbl 0807.35008
Existence of unstable periodic solutions for semilinear parabolic equations. (English) Zbl 0814.35058
Reviewer: S.Tersian (Russe)
A construction of stable subharmonic orbits in monotone time-periodic dynamical systems. (English) Zbl 0813.35037
Asymptotics in semilinear periodic diffusion equations with Dirichlet or Robin boundary conditions. (English) Zbl 0746.35005
Reviewer: W.Hoh (Erlangen)
On an abstract competition model and applications. (English) Zbl 0743.35033
Reviewer: M.Kracht (Düsseldorf)
Positive periodic solutions of predator-prey reaction-diffusion systems. (English) Zbl 0743.35030
Reviewer: M.Kracht (Düsseldorf)
Convergence to equilibrium on invariant \(d\)-hypersurfaces for strongly increasing discrete-time semigroups. (English) Zbl 0744.47037
Diffusive logistic equations with indefinite weights: Population models in disrupted environments. (English) Zbl 0711.92020
Discrete order preserving semigroups and stability for periodic parabolic differential equations. (English) Zbl 0698.35075
Reviewer: D.Tătaru
Criticality and ground states for second-order elliptic equations. (English) Zbl 0697.35036
Reviewer: Y.Pinchover
An isoperimetric inequality for the principal eigenvalue of a periodic-parabolic problem. (English) Zbl 0629.35050
Reviewer: C.Bandle
Spatial homogeneity of stable solutions of some periodic-parabolic problems with Neumann boundary conditions. (English) Zbl 0619.35059
Reviewer: P.Polacik
On the spectrum of elliptic operators with respect to indefinite weights. (English) Zbl 0621.47026
Reviewer: J.-C.Nosmas
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