\documentstyle{SibMatJ} \issueyear{2000} \issuenumber{1} \pageno=-1 \toc \title\bf Akbar~Kh.~Begmatov \unskip\rm,\quad \it A Perturbed Integral Geometry Problem in Three-Dimensional Space \page{1}\rpage{3} \endtitle \title\bf E.M. Bronshtein\unskip\rm,\quad \it Typical Convex Sets \page{13}\rpage{15} \endtitle \title\bf S.K. Vodopyanov\unskip\rm,\quad \it Topological and~Geometrical Properties of Mappings with~Summable Jacobian in Sobolev Classes.~{\rm I} \page{19}\rpage{23} \endtitle \title\bf N.S. Dairbekov\unskip\rm,\quad \it On Mappings with Bounded Distortion on the Heisenberg Group \page{40}\rpage{49} \endtitle \title\bf M.K. Dauylbaev\unskip\rm,\quad \it The Asymptotic Behavior of Solutions to Singularly Perturbed Nonlinear Integro-Differential Equations \page{49}\rpage{60} \endtitle \title\bf O.B. Dolgopolova and \`E.I. Zverovich\unskip\rm,\quad \it Explicit Construction of a~Global Uniformization for an~Algebraic Correspondence \page{61}\rpage{72} \endtitle \title\bf Kiyatkin V.R.\unskip\rm,\quad \it Inference Rules with Metavariables and Logical Equations in the~Pretabular Modal Logic PM\,$1$ \page{74}\rpage{88} \endtitle \title\bf A.P. Kopylov\unskip\rm,\quad \it On Regularity of Solutions to Systems of Partial Differential Equations Which Are Locally Close to Elliptic Systems of Linear Equations with Constant Coefficients.~{\rm II} \page{81}\rpage{98} \endtitle \title\bf M.V. Korobkov\unskip\rm,\quad \it On One Generalization of the Darboux Theorem to the Multidimensional Case \page{100}\rpage{118} \endtitle \title\bf K.~Zh.~Kudaibergenov\unskip\rm,\quad \it On the~Independence Property \page{113}\rpage{134} \endtitle \title\bf L.G. Kurakin and V.I. Yudovich\unskip\rm,\quad \it Application of the Lyapunov--Schmidt Method to~the Problem of the Branching of a~Cycle from a~Family of Equilibria in a~System with Multicosymmetry \page{114}\rpage{136} \endtitle \title\bf Yu.Yu. Linke and A.I. Sakhanenko\unskip\rm,\quad \it Asymptotically Normal Estimation of a~Parameter in a~Linear-Fractional Regression Problem \page{125}\rpage{150} \endtitle \title\bf N. V. Litvinov\unskip\rm,\quad \it On~the Resemblance and Recursive Isomorphism Types of Partial Recursive Functions \page{138}\rpage{164} \endtitle \title\bf S.V. Lyudkovskii\unskip\rm,\quad \it $\kappa $-Normed Topological Vector Spaces \page{141}\rpage{167} \endtitle \title\bf A.~Z. Mokhonko and V.D. Mokhonko\unskip\rm,\quad \it Asymptotic Estimates for the Growth of~Meromorphic Solutions to Differential Equations in~Angular Domains \page{155}\rpage{185} \endtitle \title\bf Yu.G. Nikonorov\unskip\rm,\quad \it On One Class of Homogeneous Compact Einstein Manifolds \page{168}\rpage{200} \endtitle \vfill\eject \title\bf E.G.~Smirnova \unskip\rm,\quad \it The~Width of a~Power of a~Free Nilpotent Group of Nilpotency Class~$2$ \page{173--179}\rpage{206} \endtitle \title\bf V.N.~Tyutyunov \unskip\rm,\quad \it Characterization of $r$-Solvable Groups \page{180}\rpage{214} \endtitle \title\bf E.V.~Yakovlev \unskip\rm,\quad \it On~Mutual Commutants of Generalized Carpet Subgroups \page{188}\rpage{224} \endtitle \title \bf Letters to the Editor\endtitle \title\bf V.R.~Kireitov\unskip\rm,\quad \it Corrections to the article ``The Multivelocity Peierls Potential in the~Problem of Refining the~Classical Fundamental Acoustic Potential Near the~Source of Sound in a~Homogeneous Maxwellian Gas'' \page{197}\rpage{234} \endtitle \endtoc \vskip2cm \begingroup\leftskip=1in \rightskip=1in\tenit\noindent The Russian press date (podpisano k pechati) of this issue was 30/12/1999. Publication therefore did not occur prior to this date, but must be assumed to have taken place reasonably soon thereafter. \par\endgroup \issuenumber{2} \pageno=-1 \toc \title\bf Yu.G. Abakumov, N.A. Zabelina, and O.~N. Shestakova\unskip\rm,\quad \it On Sequences of Linear Functionals and~Some Operators of~the~Class~$S_{2m}$ \page{199}\rpage{247} \endtitle \title\bf I.~K. Babenko and I.A. Taimanov\unskip\rm,\quad \it On Nonformal Simply-Connected Symplectic Manifolds \page{204}\rpage{253} \endtitle \title\bf A.I.~Budkin and L.V.~Taranina\unskip\rm,\quad \it On~Levi Quasivarieties Generated by Nilpotent Groups \page{218}\rpage{270} \endtitle \title\bf Yu. M. Vazhenin and V. Yu. Popov \unskip\rm,\quad \it On Positive and Critical Theories of Some Classes of Rings \page{224}\rpage{278} \endtitle \title\bf V.A. Vasilev and G.M. Koshkin\unskip\rm,\quad \it Nonparametric Estimation of the Ratios of Derivatives of a~Multivariate Distribution Density from Dependent Observations \page{229}\rpage{284} \endtitle \title\bf E. P. Vdovin \unskip\rm,\quad \it Large Normal Nilpotent Subgroups of Finite Groups \page{246}\rpage{304} \endtitle \title\bf A.V. Gavrilov\unskip\rm,\quad \it An~Explicit Interpolation Formula for the Hardy Space \page{252}\rpage{311} \endtitle \title\bf N.S. Dairbekov\unskip\rm,\quad \it The Limit Theorem for Mappings with Bounded Distortion on the Heisenberg Group and the Local Homeomorphism Theorem \page{257}\rpage{316} \endtitle \title\bf A. Kh. Zhurtov \unskip\rm,\quad \it On Regular Automorphisms of Order~$3$ and Frobenius Pairs \page{268}\rpage{329} \endtitle \title\bf O.V.~Isaeva and N.~Ya.~Medvedev\unskip\rm,\quad \it Coverings in the~Lattice of Quasivarieties of~$ \ell $-Groups \page{276}\rpage{339} \endtitle \title\bf O.M. Kisel\"ev\unskip\rm,\quad \it Perturbation of a~Solitary Wave of the Nonlinear Klein--Gordon Equation \page{281}\rpage{345} \endtitle \title\bf Kondratev~A. S. and Mazurov~V. D. \unskip\rm,\quad \it Recognition of Alternating Groups of Prime Degree from Their Element Orders \page{294}\rpage{359} \endtitle \title\bf A.N. Konovalov\unskip\rm,\quad \it Iterative Methods for~Operator Equations with~Adjoint Factorization \page{303}\rpage{370} \endtitle \title\bf V.I. Kuzminov and I.A. Shvedov\unskip\rm,\quad \it Separation of Variables in~the~Problems of Normal and~Compact Solvability of~the~Operator of Exterior Derivation \page{317}\rpage{385} \endtitle \title\bf N.V.~Litvinov\unskip\rm,\quad \it On Resemblance and Recursive Isomorphism Types of Bounded Partial Recursive Functions \page{327}\rpage{397} \endtitle \title\bf S.~Luckhaus and P.I.~Plotnikov\unskip\rm,\quad \it Entropy Solutions to the Buckley--Leverett Equations \page{329}\rpage{400} \endtitle \title\bf Yu.G. Nikonorov\unskip\rm,\quad \it On the Ricci Curvature of Homogeneous Metrics on Noncompact Homogeneous Spaces \page{349}\rpage{421} \endtitle \title\bf Pinus A.G.\unskip\rm,\quad \it Invariants of Rational Equivalence \page{357}\rpage{430} \endtitle \title\bf A.I.~Sozutov\unskip\rm,\quad \it Residually Finite Groups with Nontrivial Intersection of Every Subgroup Pair \page{362}\rpage{437} \endtitle \vfill\eject \title\bf E.I. Timoshenko\unskip\rm,\quad \it On Tame Automorphisms of Some Metabelian Groups \page{366}\rpage{442} \endtitle \title\bf E.I. Khukhro\unskip\rm,\quad \it Finite Soluble and Nilpotent Groups with a~Restriction on the Rank of the Centralizer of an~Automorphism of Prime Order \page{373}\rpage{451} \endtitle \title\bf P. A. Schreiner \unskip\rm,\quad \it On a~Fragment of Intuitionistic Logic Which Is Complete with Respect to the~Kripke Frames with Finite Domains \page{389}\rpage{470} \endtitle \endtoc \vskip2cm \begingroup\leftskip=1in \rightskip=1in\tenit\noindent The Russian press date (podpisano k pechati) of this issue was 6/03/2000. Publication therefore did not occur prior to this date, but must be assumed to have taken place reasonably soon thereafter. \par\endgroup \issuenumber{3} \pageno=-1 \toc \title\bf B.A. Aliev and I.V. Aliev\unskip\rm,\quad \it Completeness of the System of Root Functions of~Boundary Value Problems for Elliptic Equations with Bitsadze--Samarskii Type Boundary Conditions \page{397}\rpage{489} \endtitle \title\bf D.R. Akhmetov\unskip\rm,\quad \it A~Criterion for Existence of $L_1$-Norms for Higher-Order Derivatives of Solutions to a~Homogeneous Parabolic Equation \page{405}\rpage{498} \endtitle \title\bf Ya. V. Bazaikin \unskip\rm,\quad \it Double Quotients of Lie Groups with Integrable Geodesic Flow \page{419}\rpage{513} \endtitle \title\bf E.V. Vorob\"eva and R.K. Romanovskii\unskip\rm,\quad \it The Method of Characteristics for~Hyperbolic Boundary Value Problems on the~Plane \page{433}\rpage{531} \endtitle \title\bf E.I. Ganzha\unskip\rm,\quad \it On Approximation of Solutions to Some $(2+1)$-Dimensional Integrable Systems by B\"acklund Transformations \page{442}\rpage{541} \endtitle \title\bf I.M. Guseinov, A.A. Nabiev, and R.T. Pashaev\unskip\rm,\quad \it Transformation Operators and~Asymptotic Formulas for the Eigenvalues of a~Polynomial Pencil of Sturm--Liouville Operators \page{453}\rpage{554} \endtitle \title\bf N.S. Dairbekov\unskip\rm,\quad \it Mappings with Bounded Distortion on Heisenberg Groups \page{465}\rpage{567} \endtitle \title\bf O.Yu. Dinariev\unskip\rm,\quad \it On the Dynamics of a~Nonlinear Multidimensional Oscillator with Memory \page{487}\rpage{591} \endtitle \title\bf P.~L. Komarov\unskip\rm,\quad \it Stability of a Solution to an~Integral Geometry Problem in~Sobolev Norms \page{497}\rpage{602} \endtitle \title\bf Ya.A.~Kopylov and V.I.~Kuzminov\unskip\rm,\quad \it On the~$\Ker $-$\Coker $-Sequence in a~Semiabelian Category \page{509}\rpage{615} \endtitle \title\bf V.B. Korotkov\unskip\rm,\quad \it On Nonintegrality of Functions of~Some Integral~and Partially Integral Operators \page{518}\rpage{625} \endtitle \title\bf A.V.~Krotov\unskip\rm,\quad \it The Euler Characteristic of Varieties Realized as the Complete Intersection of Toric Hypersurfaces \page{521}\rpage{629} \endtitle \title\bf V.V. Kuznetsov\unskip\rm,\quad \it On Existence of a~Boundary Layer near a~Three-Phase Contact Point \page{526}\rpage{635} \endtitle \title\bf Yu.M. Laevsky\unskip\rm,\quad \it On the Structure of Solutions to Elliptic Problems with~Strong Anisotropy \page{538}\rpage{648} \endtitle \title\bf A. I. Sozutov \unskip\rm, \it On a~Generalization of the Baer--Suzuki Theorem \page{561}\rpage{674} \endtitle \title\bf B. Ya. Solon \unskip\rm,\quad \it $e$-Immune Sets \page{563}\rpage{676} \endtitle \vfill\eject \title\bf S.I. Suslov\unskip\rm,\quad \it Characterization of Strongly Exposed Points in~$L_2(T,X)$ \page{575}\rpage{692} \endtitle \title\bf V.I. Ursu \unskip\rm,\quad \it Recursive Inseparability of the~Sets of Identically Valid and Finitely Refutable Formulas of Some Elementary Theories of Varieties \page{578}\rpage{696} \endtitle \title\bf N.B. Uskova\unskip\rm,\quad \it On Estimates for Spectral Projections of Perturbed Selfadjoint Operators \page{592}\rpage{712} \endtitle \endtoc \vskip2cm \begingroup\leftskip=1in \rightskip=1in\tenit\noindent The Russian press date (podpisano k pechati) of this issue was 5/05/2000. Publication therefore did not occur prior to this date, but must be assumed to have taken place reasonably soon thereafter. \par\endgroup \issuenumber{4} \pageno=-1 \toc \title\bf S.V. Astashkin\unskip\rm,\quad \it Fourier--Rademacher Coefficients of Functions in~Rearrangement-Invariant Spaces \page{601}\rpage{729} \endtitle \title\bf G.A. Bazhenova \unskip\rm,\quad \it Closure of One Class of Groups Under Free Product \page{611}\rpage{740} \endtitle \title\bf A. M. Blokhin and A.S.~Bushmanova \unskip\rm,\quad \it Asymptotical Stability of an Equilibrium for the Gasdynamical Model of Carrier Transport in Semiconductors \page{614}\rpage{744} \endtitle \title\bf I.~B. Bryskin, O.V. Lelond, and E.M. Sem\"enov\unskip\rm,\quad \it Multipliers of the Fourier--Haar Series \page{626}\rpage{758} \endtitle \title\bf A.L. Bukhgeim, N.I. Kalinina, and V.B. Kardakov\unskip\rm,\quad \it Two Methods for the Inverse Problem of Memory Reconstruction \page{634}\rpage{767} \endtitle \title\bf V.V. Voronin\unskip\rm,\quad \it Estimation of the Condition Number of a~Matrix in the Direct Discretization of the Symm Equation on~a~Quasi-Uniform Grid \page{643}\rpage{777} \endtitle \title\bf M.V. Korobkov\unskip\rm,\quad \it On Stability of Classes of Lipschitz Mappings Generated by Compact Sets of the Space of Linear Mappings \page{656}\rpage{792} \endtitle \title\bf K. Zh. Kudaibergenov \unskip\rm,\quad \it Homogeneous Models and Generic Extensions \page{671}\rpage{811} \endtitle \title\bf V.V. Kuznetsov\unskip\rm,\quad \it On the~Problem of the~Marangoni-to-Prandtl Boundary Layer Transition \page{679}\rpage{822} \endtitle \title\bf V.B. Levenshtam\unskip\rm,\quad \it The Averaging Principle in the Case of the Cauchy Problem for~Quasilinear Parabolic Equations with~Variable Principal Part \page{694}\rpage{839} \endtitle \title\bf S.V. Lenyuk \unskip\rm,\quad \it Filters in Lattices of Group Quasivarieties Closed Under the~Wreath Product \page{712}\rpage{858} \endtitle \title\bf A.S. Leonov\unskip\rm,\quad \it A~Generalization of the Maximal Entropy Method for Solving Ill-Posed Problems \page{716}\rpage{863} \endtitle \title\bf K.S. Matviichuk\unskip\rm,\quad \it On Conditions for Engineering Stability of Dynamical Systems with Variable Structure \page{725}\rpage{873} \endtitle \title\bf K.V.~Matyushichev \unskip\rm,\quad \it On $e$-Compactifications and $e$-Compactifiable Spaces \page{737}\rpage{886} \endtitle \title\bf S.A. Nazarov\unskip\rm,\quad \it On the Asymptotics of~the~Spectrum of~a~Thin Plate Problem of~Elasticity \page{744}\rpage{895} \endtitle \title\bf Yu.G. Nikonorov\unskip\rm,\quad \it Tessellations of Many-Dimensional Parallelepipeds \page{760}\rpage{913} \endtitle \title\bf V. M. Petrogradskii\unskip\rm,\quad \it On Invariants of the~Action of a~Finite Group on a~Free Lie Algebra \page{763}\rpage{917} \endtitle \title\bf \`E. A. Tomberg and V. A. Yakubovich \unskip\rm,\quad \it On One Problem of Smale \page{771}\rpage{926} \endtitle \title\bf I. V. Chirkov \unskip\rm,\quad \it The Small Index Property for Algebras \page{774}\rpage{929} \endtitle \vfill\eject \title\bf V.B. Sherstyukov\unskip\rm,\quad \it On a~Question About $\gamma $-Sufficient Sets \page{778}\rpage{935} \endtitle \title\bf O.Yu. \`Emanuilov\unskip\rm,\quad \it Boundary Controllability of Hyperbolic Equations \page{785}\rpage{944} \endtitle \title\bf A.R.~Mirotin\unskip\rm,\quad \it Letter to the Editor \page{800}\rpage{960} \endtitle \endtoc \vskip2cm \begingroup\leftskip=1in \rightskip=1in\tenit\noindent The Russian press date (podpisano k pechati) of this issue was 30/06/2000. Publication therefore did not occur prior to this date, but must be assumed to have taken place reasonably soon thereafter. \par\endgroup \issuenumber{5} \pagenomo \toc \title\bf V.V. Aseev and D.~G. Kuzin\unskip\rm,\quad \it Continua of~Bounded Turning: Chain Condition and~Infinitesimal Connectedness \page{801}\rpage{984} \endtitle \title\bf A.A.~Borovkov\unskip\rm,\quad \it Estimates for the Distribution of Sums and Maxima of Sums of Random Variables Without the Cramer Condition \page{811}\rpage{997} \endtitle \title\bf E.G. Grigoreva\unskip\rm,\quad \it On Existence of Spacelike Surfaces with Prescribed Boundary \page{849}\rpage{1039} \endtitle \title\bf A.A.~Egorov and M.V.~Korobkov\unskip\rm,\quad \it Stability of Classes of Lipschitz Mappings, the Darboux Theorem, and Quasiconvex Sets \page{855}\rpage{1046} \endtitle \title\bf T.I. Zelenyak and N.A. Lyulko\unskip\rm,\quad \it On a~Method for Solving a~Classical Variational Problem \page{866}\rpage{1060} \endtitle \title\bf V.K. Ionin\unskip\rm,\quad \it Closed Geodesics in~Simply Connected Riemannian Spaces of Negative Curvature \page{880}\rpage{1076} \endtitle \title\bf S.L.~Krushkal \unskip\rm,\quad \it Quasiconformal Maps Decreasing the $L_p$ Norm \page{884}\rpage{1081} \endtitle \title\bf N.K. Mamadaliev\unskip\rm,\quad \it On Representation of a~Solution to a~Modified Cauchy Problem \page{889}\rpage{1087} \endtitle \title\bf G.A. Mikhailov and A. V. Burmistrov \unskip\rm,\quad \it A New Monte Carlo Method for Solving a~Stationary Diffusion Equation \page{900}\rpage{1098} \endtitle \title\bf V.N. Monakhov\unskip\rm,\quad \it On a Variational Method for Solving Hydrodynamical Free Boundary Problems \page{907}\rpage{1106} \endtitle \title\bf V. Yu. Popov \unskip\rm,\quad \it On Connection Between the~Word Problem and Decidability of the~Equational Theory \page{921}\rpage{1122} \endtitle \title\bf S.G.~Pyrkin\unskip\rm,\quad \it Complete Description for $m$-Equivalence Types of Superatomic $I$-Algebras \page{924}\rpage{1126} \endtitle \title\bf G.A. Rudykh and \`E.I. Sem\"enov\unskip\rm,\quad \it Existence and Construction of~Anisotropic Solutions to the Multidimensional Equation of~Nonlinear Diffusion.~{\rm I} \page{940}\rpage{1144} \endtitle \title\bf Falaleev M.V.\unskip\rm,\quad \it Fundamental Operator-Functions of Singular Differential Operators in~Banach Spaces \page{960}\rpage{1167} \endtitle \title\bf G.~Fremiot and J.~Sokolowski\unskip\rm,\quad \it The Structure Theorem for the Eulerian Derivative of~Shape Functionals Defined in~Domains with Cracks \page{974}\rpage{1183} \endtitle \vfill\eject \title\bf A. Jaikin~Zapirain and E.I.~Khukhro \unskip\rm,\quad \it On Connection Between Nilpotent Groups and Lie Rings \page{994}\rpage{1203} \endtitle \issuenumber{6} \pagenomo \toc \title\bf K.~Aydin, H. Bulgak, and G.V. Demidenko\unskip\rm,\quad \it Numeric Characteristics for Asymptotic Stability of Solutions to Linear Difference Equations with~Periodic Coefficients \page{1005}\rpage{1227} \endtitle \title\bf I.A. Antipova\unskip\rm,\quad \it Application of the Logarithmic Differential to~the Holomorphic Extension Problem for $CR$-Hyperfunctions \page{1015}\rpage{1238} \endtitle \title\bf A.V.~Badeev\unskip\rm,\quad \it On the~Specht Property of Varieties of Commutative Alternative Algebras over a~Field of Characteristic~{\rm 3} and Commutative Moufang Loops \page{1027--1041}\rpage{1252} \endtitle \title\bf Yu.~F. Borisov\unskip\rm,\quad \it Vector Curvature of a~Surface in Hilbert Space and~the Gauss Theorem \page{1042}\rpage{1269} \endtitle \title\bf A.A.~Borovkov\unskip\rm,\quad \it Large Deviation Probabilities for Random Walks with Semiexponential Distributions \page{1061}\rpage{1290} \endtitle \title\bf L.~B.~Vertgeim\unskip\rm,\quad \it Weighted Matrix Integral Geometry \page{1094}\rpage{1325} \endtitle \title\bf A.N. Grishkov\unskip\rm,\quad \it Representations of the~Lie Ring $sl_2(\bold Z)$ over the~Ring of Integers \page{1105}\rpage{1338} \endtitle \title\bf A.N.~D\"egtev and E.S.~Sakunova \unskip\rm,\quad \it On Reducibility of Partial Recursive Functions \page{1111}\rpage{1345} \endtitle \title\bf T.~Ishankulov\unskip\rm,\quad \it On the Possibility of Extending a~Function from a~Part of a~Domain to a~Generalized Analytic Function on This Domain \page{1115}\rpage{1350} \endtitle \title\bf S.N. Kiyasov\unskip\rm,\quad \it Study of Solvability and~Estimation of the Number of Solutions for One Class of Singular Integral Equations \page{1121}\rpage{1357} \endtitle \title\bf L.S. Maergoiz\unskip\rm,\quad \it An~Optimal Estimate for Extrapolation from a~Finite Set in~the Wiener Class \page{1126}\rpage{1363} \endtitle \title\bf N.Yu.~Makarenko\unskip\rm,\quad \it Rank Analogs of Hall's and Baer's Theorems \page{1137}\rpage{1376} \endtitle \title\bf J.~Mal\'y and S.P.~Ponomarev\unskip\rm,\quad \it On the Sobolev class $W_{{\loc }}^{1,p}$ and Quasiregularity \page{1141}\rpage{1381} \endtitle \title\bf A.E. Mironov\unskip\rm,\quad \it Commutative Rings of~Differential Operators Connected with~Two-Dimensional Abelian Varieties \page{1148}\rpage{1389} \endtitle \title\bf A.S.~Morozov\unskip\rm,\quad \it A $\Sigma $-Set of Natural Numbers Not Enumerable by Natural Numbers \page{1162}\rpage{1404} \endtitle \title\bf A.G.~Pinus\unskip\rm,\quad \it On~Functions Commuting with Semigroups of Transformations of Algebras \page{1166}\rpage{1409} \endtitle \title\bf S.G.~Pyatkov and N.L.~Abasheeva \unskip\rm,\quad \it Solvability of Boundary Value Problems for Operator-Differential Equations of Mixed Type \page{1174}\rpage{1419} \endtitle \title\bf H.~Sibert\unskip\rm,\quad \it Automorphic Objects in Categories \page{1188}\rpage{1436} \endtitle \tocbreak \title\bf E.I.~Timoshenko \unskip\rm,\quad \it Test Elements and Test Rank of a~Free Metabelian Group \page{1200}\rpage{1451} \endtitle \title\bf I.V.~Chirkov and M.A.~Shevelin \unskip\rm,\quad \it Determination of Endomorphisms of Free Metabelian Lie Algebras \page{1205}\rpage{1457} \endtitle \medbreak \leftline {\xiibf Index} \nobreak \smallskip \title \rm Author Index, Volume 41, Numbers 1--6, 2000 \page{1210}\rpage\endtitle \title \rm Tables of Contents, Volume 41, Numbers 1--6, 2000 \page{1212}\rpage\endtitle \endtoc \vskip2cm \begingroup\leftskip=1in \rightskip=1in\tenit\noindent The Russian press date (podpisano k pechati) of this issue was 10/11/2000. Publication therefore did not occur prior to this date, but must be assumed to have taken place reasonably soon thereafter. \par\endgroup