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Number 5, October 1982
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Ch O Annaberdyev
G I Arkhipov and A A Karatsuba
A A Borubaev
Yu Kh Bregman
A A Butov
N N Chentsova
I V Denisov
I V Evstigneev
S N Fedin
R F Galeeva, V V Pelipenko and Dmitrii D Sokolov
V D Golovin
L A Gutnik
B D Kotlyar
S M Kozlov
S B Kuksin
A A Nechaev
Nguen Ming Chyong
O A Oleinik and G A Iosif'yan
E G Pytkeev
V A Romanov
N I Shakenko
A A Tuganbaev
V V Vlasov
E B Vul and K M Khanin
A N Kolmogorov, Sergei M Nikol'skii, V A Skvortsov and P L Ul'yanov
S P Novikov
CONTENTS Introduction § 1. The Hamiltonian formalism. Simplest examples. Systems of Kirchhoff type. Factorization of the Hamiltonian formalism for the B-phase of 3He § 2. The Hamiltonian formalism of systems of hydrodynamic origin § 3. What is Morse (LSM) theory? § 4. Equations of Kirchhoff type and the Dirac monopole § 5. Many-valued functional and an analogue of Morse theory. The periodic problem for equations of Kirchhoff type. Chiral fields in an external field § 6. Many-valued functions on finite-dimensional manifolds. An analogue of Morse theory References
A M Sedletskii
CONTENTS Introduction Chapter I. Non-harmonic Fourier series (behaviour on the initial interval) § 1.1. Minimal systems of exponentials § 1.2. Expansions of functions in , § 1.3. Expansions of functions in Comments and supplements Chapter II. Non-harmonic Fourier series (the behaviour on the real axis) § 2.1. Extension of convergence of quasi-polynomials § 2.2. Continuation of functions from the initial interval § 2.3. Convergence and summability of non-harmonic Fourier series in the -norm () on every segment Comments and supplements Chapter III. Properties of the system § 3.1. Basis properties § 3.2. Angles between subspaces of exponentials Comments and supplements References
Yu A Dubinskii
CONTENTS Introduction § 1. The test space § 2. The space of generalized functions § 3. The algebra of pseudodifferential operators with analytic symbol § 4. Applications to problems in the whole Euclidean space § 5. The Cauchy problem § 6. Applications to boundary-value problems References