1999

SISUKORD 
CONTENTS 
Number 1

In English. Summaries in Estonian 
 Problems of isomorphy concerning the algebraic representation of
affine MDScodes; 3–11
 Jörn QUISTORFF
 Compactness of operators acting from an Orlicz sequence space to a
Lorentz sequence space; 12–21
 Jelena AUSEKLE
 Rational spline interpolation to monotonic data; 22–30
 Peeter OJA
 On robust control and nice stability via reflection coefficients;
31–47
 Ülo NURGES
 Radiation hydrodynamics and radiating spheres in general relativity;
48–59
 Roberto O. AQUILANO
CHRONICLE
 Jaan Einasto 70; 60–62
 Instructions to authors; 63–65

Number 2

In English. Summaries in Estonian 
 Foreword; 67–68
 Arvet PEDAS
 Spline collocation method for weakly singular integral equations;
69–78
 Arvet PEDAS and Gennadi VAINIKKO
 Periodization of integral equations on open arcs; 79–89
 Jukka SARANEN and Gennadi VAINIKKO
 The numerical solution of weakly singular firstkind Volterra
integral equations with delay arguments; 90–100
 Hermann BRUNNER
 Singular solutions of singular integral equations and their
applications; 101–110
 Ivan K. LIFANOV
 Stability analysis of some twodimensional finitedifference
schemes; 111–122
 Raimondas CIEGIS and Olga ŠTIKONIENE
 Complexity for some classes of wellposed problems; 123–132
 Sergei G. SOLODKY
 On the a posteriori parameter choice in regularization methods;
133–145
 Uno HÄMARIK and Toomas RAUS
 Some approximate methods for solving nonlinear illposed problems;
146–151
 Otu VAARMANN
CHRONICLE
 Ülo Lumiste 70; 152
 Ülo Jaaksoo 60; 153
ESTONIAN PHYSICAL SOCIETY
 Annual award of the Estonian Physical Society; 155
 Instructions to authors; 156–158
 Copyright Transfer Agreement; 159

Number 3/4

In English. Summaries in Estonian 
 Preface; 163–164
 Mati KUTSER
 On the "analytic continuation" of continuum mechanics; 165–173
 Gérard A. MAUGIN
 Continuous and discrete elastic structures; 174–188
 Manfred BRAUN
 Morphological instability of grain boundaries in solids; 189–198
 Michael GRINFELD
 Scaling laws for turbulence at very large Reynolds numbers; 199–205
 G. I. BARENBLATT and A. J. CHORIN
 Nonlinear effects in bichromatic surface waves; 206–229
 E. van GROESEN, ANDONOWATI, and E. SOEWONO
 Joint evolution of generalized and classical spectra in the kinetic
theory; 230–238
 Tarmo SOOMERE
 Nonlinear acceleration waves in approximately constrained elastic
bodies; 239–251
 Franco PASTRONE and Maria Luisa TONON
 Nonlinear interaction of longitudinal waves in elastic material;
252–264
 Arvi RAVASOO and Andres BRAUNBRÜCK
 Decay estimates for parabolic conservation laws; 265–267
 Alan JEFFREY
 Hyperbolic wave features of an exact solution to a model for nerve
pulse transmission; 268–277
 Domenico FUSCO and Natale MANGANARO
 Mathematical modelling of cardiac phenomena: arrhythmias, cell
energetics, and contraction; 278–287
 Olav KONGAS and Marko VENDELIN
 Mathematical formulation of optimal competitive running by
Pontryagin's minimum principle; 288–295
 Matti A. RANTA and Raimo von HERTZEN
 The wonderful Hooke's law: history, theory, and story; 296–305
 Andras SZEKERES
CHRONICLE
 Jüri Engelbrecht 60; 306–308
 Instructions to authors; 309–311
 Contents of volume 48; 312
