Dynamic Systems and Applications

Volume 3, 1994


CONTENTS

A. N. V. Rao & Chris P. Tsokos
Optimal feedback control of a class of linear stochastic systems with random
coefficients under constraints
 


1

N. U. Ahmed
Evolution equations on Folk spaces over Gaussian random fields
 


25

Jurgen Appell, Nguyen Van Minh & Petr P. Zabrejko
General exponent and dichotomy in stochastic differential equations
 


39

T. E. Govindan
Autonomous semilinear stochastic Volterra integro-differential
equations in Hilbert space
 


51
 

Junji Kato
Stability criteria for difference equations related with Liapunov
functions for delay-differential equations
 

75

S. R. Grace & B. S. Lalli
Oscillation theorems for certain neutral functional differential
equations with periodic coefficients
 

85

John R. Graef & Paul W. Spikes
Asymptotic decay of oscillatory solutions of forced nonlinear
difference equations
 

95

Lawrence R. Williams
Bounded point evaluations and the local spectra of cyclic hyponormal operators
 


103

S. Leela, S. G. Rajalakshmi & A. S. Vatsala
Global results via perturbing Lyapunov functions
 


113

C. S. Chen & A. S. Muleshkov
Critical lengths for some nonlinear differential equations
 


121

R. D. Blakley & S. G. Pandit
On a sharp linear comparison result and an application to
nonlinear Cauchy problem
 


135

A. Drozdov
Stability of viscoelastic bars under nonconservative loading
 


141

V. S. Afraimovich and Shui-Nee Chow
Existence of evolution operators group for infinite Lattice of coupled
ordinary differential equation
 


155

S. Murakami and T. Yoshizawa
Asymptotic behavior in a system of Volterra integro-differential equations
with diffusion
 


175

D. O'Regan and S. J. Smith
The maximum principle for continuous age-structured populations with
unconstrained harvest rates
 

189

V. Capasso, A. Di Liddo, and L. Maddalena
Asymptotic behaviour of a nonlinear model for the geographical diffusion
of innovations
 

207

A. Buttu
A construction of the evolution operator for a class of abstract
parabolic equations
 

221

V. Anuradha, R. Shivaji, and J. Zhu
Positive solutions for classes of positone problems when a parameter is negative
 

235

S. Carl and S. Heikkila
Extremal solutions of quasilinear parabolic boundary value problems
with discontinuous nonlinearities
 

251

E. De Pascale and G. Marino
On the proof of abstract Cauchy-Kowalewska type theorems:
some improvements
 

259

J.V. Concalves and F.J.S.A. Correa
A remark on existence monotonicity and symmetry of positive
solutions for discontinuous elliptic problems
 

267

J. M. Mazon and J. Toledo
Asymptotic behavior of solutions of the filtration equation in
bounded domain
 

275

E. Liz and J.J. Nieto
Periodic boundary value problem for integro-differential equations with
general kernel
 


297

F. Battelli
Perturbing diffeomorphisms which have heteroclinic orbits with semi-
hyperbolic fixed points
 


305

R. Naulin and M. Pinto
Dichotomies for differential systems with unbounded coefficients
 


333

C.E. Chidume
An iterative method for nonlinear demiclosed monotone-type operators
 


349

X. Liu
Periodic boundary value problems for differential equations with finite delay
 


357

M. Dambrine and J. P. Richard
Stability and stability domains analysis for nonlinear differential-difference
equations
 

369

H. M. Rodrigues and J. G. Ruas-Filho
Homoclinics and subharmonics of nonlinear two dimensional systems
 


379

D. Bainov, Yu. Domshlak, and S. Milusheva
Method of partially-additive averaging for impulsive differential equations
with supremum
 

395

J. Henderson and E.R. Kaufmann
Integral conditions for disfocality of a linear differential equation
 


405

P. N. Vlahos
Oscillation and stability of an equation with piecewise constant
quadratic nonlinearity
 

413

E. Feireisl
Convergence to an equilibrium for semilinear wave equations on
unbounded interval
 

423

A. F. Neves
Stability of the sucker rod's periodic solution
 


435

S. T. Zavalishchin
Impulse dynamic systems and applications to mathematical economics
 


443

J. C. Robinson
Erratum: Integral manifolds and the cone conditions
 


451

F. Bucci
Regularization and approximation of the wave equation with boundary
input: an abstract approach
 

453

R. Soranzo
A priori estimates and existence of positive solutions of a superlinear
polyharmonic equation
 

465

J. B. De M. Xavier
A priori estimates and multipicity results for equations of the
form - u = f(x,u,Du)
 


489

M. Zuluaga
A nonlinear elliptic systems at resonance
 


501

M. Carlos Cabezas
A multiplicity result of a semilinear elliptic eigenvalue problem
 


511

A.I.Avila and P.L. Felmer
Periodic and subharmonic solutions for a class of second order
Hamiltonion systems
 


519

L. Jeanjean
Existence of connecting orbits in a potential well
 


537

G.S.Ladde and S. Sathananthan
Stochastic integro-differential equations with random parameters-II
 


563

T. A. Burton and T. Furumochi
Periodic solutions of Volterra equations and attractivity
 


583