\documentstyle{SibMatJ} \issueyear{2007} \issuenumber{1} \pagenomo \toc \title\bf S. S. Kutateladze \unskip\rm,\quad \it Kantorovich's Phenomenon \page{1}\rpage{3} \endtitle \title\bf M.G.~Amaglobeli\unskip\rm,\quad \it Algebraic Sets and Coordinate Groups for a~Free Nilpotent Group of Nilpotency Class~$2$ \page{3}\rpage{5} \endtitle \title\bf Ya.~V. Bazaikin\unskip\rm,\quad \it On the New Examples of Complete Noncompact $\operatorname {Spin}(7)$-Holonomy Metrics \page{8}\rpage{11} \endtitle \title\bf A.V.~Borisov and I.S.~Mamaev\unskip\rm,\quad \it Isomorphism and Hamilton Representation of Some Nonholonomic Systems \page{26}\rpage{33} \endtitle \title\bf S.K.~Vodopyanov and D.V.~Isangulova\unskip\rm,\quad \it Differentiability of the Mappings of Carnot--Carath\'eodory Spaces in~the~Sobolev and $BV$-Topologies \page{37}\rpage{46} \endtitle \title\bf A.V.~Gavrilov\unskip\rm,\quad \it The Double Exponential Map and Covariant Derivation \page{56}\rpage{68} \endtitle \title\bf V.M.~Gichev and E.A.~Meshcheryakov\unskip\rm,\quad \it On Geometry of Flat Complete Strictly Causal Lorentzian Manifolds \page{62}\rpage{75} \endtitle \title\bf M.A.~Grechkoseeva\unskip\rm,\quad \it On Difference Between the Spectra of the Simple Groups $B_n(q)$~and~$C_n(q)$ \page{73}\rpage{89} \endtitle \title\bf S.E. Zhelezovskii\unskip\rm,\quad \it Study of Convergence of the Projection-Difference Method for Hyperbolic Equations \page{76}\rpage{93} \endtitle \title\bf M.A. Ignateva and A.P. Chupakhin\unskip\rm,\quad \it Integration of the Equations of Gas Dynamics for $2.5$-Dimensional Solutions \page{84}\rpage{103} \endtitle \title\bf N.Yu.~Makarenko \unskip\rm,\quad \it Graded Lie Algebras with Few Nontrivial Components \page{95}\rpage{116} \endtitle \title\bf S.P.~Odintsov\unskip\rm,\quad \it On~Extensions of Nelson's Logic Satisfying Dummett's Axiom \page{112}\rpage{138} \endtitle \title\bf A.A.~Perfilyev\unskip\rm,\quad \it Solution of the Problem of Describing Minimal Seifert Manifolds \page{126}\rpage{156} \endtitle \title\bf A.S.~Romanov\unskip\rm,\quad \it On the Traces of Sobolev Functions on the Boundary of a~Cusp with a~H\"older Singularity \page{142}\rpage{176} \endtitle \title\bf V.G.~Safonov\unskip\rm,\quad \it Characterization of the Soluble One-Generated Totally Saturated Formations of Finite Groups \page{150}\rpage{185} \endtitle \title\bf M.V.~Semenova\unskip\rm,\quad \it On Lattices Embeddable into Subsemigroup Lattices.~{\rm III:} Nilpotent Semigroups \page{156}\rpage{192} \endtitle \title\bf S.V.~Sudoplatov\unskip\rm,\quad \it Powerful Digraphs \page{165}\rpage{205} \endtitle \title\bf N.G.~Khisamiev\unskip\rm,\quad \it On Constructive Nilpotent Groups \page{172}\rpage{214} \endtitle \title\bf B.~Hu and W.~Guo\unskip\rm,\quad \it $c$-Semipermutable Subgroups of Finite Groups \page{180}\rpage{224} \endtitle \title\bf P.V. Chernikov\unskip\rm,\quad \it On Two Questions of the Theory of Retracts \page{189}\rpage{236} \endtitle \endtoc \vskip2cm \begingroup\leftskip=1in\rightskip=1in\tenpoint\noindent {\it Siberian Mathematical Journal\/} is abstracted or indexed in CompuMath Citation Index, SCOPUS, ISI Alerting Services, Science Citation Index Expanded. \par\endgroup \documentstyle{SibMatJ} \issueyear{2007} \issuenumber{2} \pagenomo \toc \title\bf E.~Alba\c {s}\unskip\rm,\quad \it On $\tau $-Centralizers of Semiprime Rings \page{191}\rpage{243} \endtitle \title\bf S.K.~Vodopyanov\unskip\rm,\ \ \it Differentiability of Mappings in the Geometry of Carnot Manifolds \page{197}\rpage{251} \endtitle \title\bf S.N. Glazatov\unskip\rm,\quad \it Some Problems for Nonlinear~Pseudoparabolic Equations in~Nontube Domains \page{214}\rpage{272} \endtitle \title\bf A.V. Greshnov\unskip\rm,\quad \it Local Approximation of Uniformly Regular Carnot--Carath\'eodory Quasispaces by Their Tangent Cones \page{229}\rpage{290} \endtitle \title\bf D.V.~Isangulova\unskip\rm,\quad \it The Class of Mappings with Bounded Specific Oscillation, and Integrability of Mappings with Bounded Distortion on Carnot Groups \page{249}\rpage{313} \endtitle \title\bf E.K. Leinartas\unskip\rm,\quad \it Multiple Laurent Series and Fundamental Solutions of Linear Difference Equations \page{268}\rpage{335} \endtitle \title\bf S.F.~Lukomskii\unskip\rm,\quad \it The Fourier--Walsh Series of the Functions Absolutely Continuous in the Generalized Restricted Sense \page{273}\rpage{341} \endtitle \title\bf D.V.~Lytkina \unskip\rm,\quad \it Structure of a Group with Elements of Order at Most~{\rm 4} \page{283}\rpage{353} \endtitle \title\bf V.S.~Monakhov \unskip\rm,\quad \it Finite Groups with Hall Supplements to Primitive Subgroups \page{288}\rpage{359} \endtitle \title\bf A.L.~Mylnikov\unskip\rm,\quad \it Finite Tangled Groups \page{295}\rpage{369} \endtitle \title\bf U.~M.~Pachev\unskip\rm,\quad \it On the Asymptotics of the Number of Reduced Integral Quadratic Forms with a~Condition of Divisibility of the First Coefficients \page{300}\rpage{376} \endtitle \title\bf J.~A.~Ryan\unskip\rm,\quad \it Automorphisms of Coxeter Groups of Type $K_{n}$ \page{311}\rpage{389} \endtitle \title\bf A.N.~Rutskii\unskip\rm,\quad \it An~Admissibility Criterion for Inference Rules with Metavariables in the~Modal Logic $S4.\alpha _N$ \page{317}\rpage{396} \endtitle \title\bf F.~I.~Soloveva and N. N. Tokareva\unskip\rm,\quad \it On Distance Nonregularity of Preparata Codes \page{327}\rpage{408} \endtitle \title\bf S.V.~Sudoplatov\unskip\rm,\quad \it On the Number of Countable Models of Complete Theories with Finite Rudin--Keisler Preorders \page{334}\rpage{417} \endtitle \title\bf B.~R.~Fedorishin\unskip\rm,\quad \it An~Explicit Basis for the Admissible Inference Rules in the G\"odel--L\"ob Logic~$GL$ \page{339--345}\rpage{423} \endtitle \title\bf S.~H.~Hong, S.~Y.~Xie, C.~G.~Zhang, and Z.~R.~He \unskip\rm,\quad \it Existence of Maximal and Minimal Solutions to a Boundary Value Problem for the Equation of the Bending of an~Elastic Beam \page{346}\rpage{431} \endtitle \title\bf A.L.~Shabunin \unskip\rm,\quad \it On the~$\alpha $-Superposition of Functions of a~$k$-Valued Logic \page{354}\rpage{441} \endtitle \title\bf V.B. Sherstyukov\unskip\rm,\quad \it Nontrivial Expansions of Zero and Representation of Analytic Functions by Series of Simple Fractions \page{369}\rpage{458} \endtitle \title\bf Z.~Ercan\ and S.~\"Onal\unskip\rm,\quad \it On the Sequential Order Continuity of the $C(K)$-Space \page{382}\rpage{474} \endtitle \endtoc \vskip2cm \begingroup\leftskip=1in\rightskip=1in\tenpoint\noindent {\it Siberian Mathematical Journal\/} is abstracted or indexed in CompuMath Citation Index, SCOPUS, ISI Alerting Services, Science Citation Index Expanded. \par\endgroup \documentstyle{SibMatJ} \issueyear{2007} \issuenumber{3} \pagenomo \toc \title\bf Yu. L. Ershov, S. S. Kutateladze, and I. A. Taimanov\unskip\rm,\quad \it Fifty Years of the Siberian Division of the Russian Academy of Sciences \page{385}\rpage{483} \endtitle \title\bf V.G.~Bardakov and R.~V.~Mikhailov \unskip\rm,\quad \it On the Residual Properties of Link Groups \page{387}\rpage{485} \endtitle \title\bf D.A.~Berdinsky and I.A.~Taimanov\unskip\rm,\quad \it Surfaces of Revolution in the Heisenberg Group and the Spectral Generalization of the Willmore Functional \page{395}\rpage{496} \endtitle \title\bf W.~Wang\unskip\rm,\quad \it On Stability of CR-Mappings Between Nilpotent Lie Groups of Step Two \page{408}\rpage{512} \endtitle \title\bf R.A.~Vikentev\unskip\rm,\quad \it On the Isomorphism Problem in the Class of Extensions of a~Free Group by an~Infinite Cyclic Group \page{428}\rpage{536} \endtitle \title\bf O.L.~Vinogradov \unskip\rm,\quad \it Sharp Error Estimates for the Numerical Differentiation Formulas on the Classes of Entire Functions of Exponential Type \page{430}\rpage{538} \endtitle \title\bf S.A.~Guda and V.I.~Yudovich \unskip\rm,\quad \it The Coupled Problem of a~Solid Oscillating in a~Viscous~Fluid Under the Action of an~Elastic Force \page{446}\rpage{556} \endtitle \title\bf V.S.~Guliyev and Sh.~A.~Nazirova\unskip\rm,\quad \it A Rearrangement Estimate for the Generalized Multilinear Fractional Integrals \page{463}\rpage{577} \endtitle \title\bf R.~del~Campo and E.~de~Amo\unskip\rm,\quad \it Sequential Density Techniques for an~Approximate Radon--Nikod\'ym Theorem \page{471}\rpage{586} \endtitle \title\bf M.~Kirane and N.~Tatar\unskip\rm,\quad \it Absence of Local and Global Solutions to an Elliptic System with Time-Fractional Dynamical Boundary Conditions \page{477}\rpage{593} \endtitle \title\bf K.V.~Kostousov\unskip\rm,\quad \it The Cayley Graphs of $\Bbb Z^d$ and the Limits of Vertex-Primitive Graphs of $HA$-Type \page{489}\rpage{606} \endtitle \title\bf V.I.~Kuzminov and I.A.~Shvedov \unskip\rm,\quad \it On the Operator of Exterior Derivation on the Riemannian Manifolds with Cylindrical Ends \page{500}\rpage{621} \endtitle \title\bf A.A.~Maksimenko and A.S.~Mamontov \unskip\rm,\quad \it The Local Finiteness of Some Groups Generated by a~Conjugacy Class of Order~{\rm 3} Elements \page{508--518}\rpage{631} \endtitle \title\bf A.M.~Meirmanov\unskip\rm,\quad \it Nguetseng's Two-Scale Convergence~Method for~Filtration and Seismic~Acoustic~Problems in Elastic Porous Media \page{519}\rpage{645} \endtitle \title\bf A.G.~Pinus \unskip\rm,\quad \it The Computability Potential Scale of All Finite Algebras \page{539}\rpage{668} \endtitle \title\bf A.N.~Skiba and O.V.~Titov \unskip\rm,\quad \it Finite Groups with $C$-Quasinormal Subgroups \page{544}\rpage{674} \endtitle \title\bf Yu.V.~Sosnovskii\unskip\rm,\quad \it The Hypercentral Structure of the Group of Unitriangular Automorphisms of a~Polynomial Algebra \page{555}\rpage{689} \endtitle \title\bf S.~Stevi\' c\unskip\rm,\quad \it Boundedness and~Compactness of~an~Integral Operator in a~Mixed Norm Space on the~Polydisk \page{559}\rpage{694} \endtitle \title\bf A.~Khosravi and B.~Khosravi\unskip\rm,\quad \it Quasirecognition by Prime Graph of the Simple Group~$^2G_2(q)$ \page{570}\rpage{707} \endtitle \endtoc \vskip2cm \begingroup\leftskip=1in\rightskip=1in\tenpoint\noindent {\it Siberian Mathematical Journal\/} is abstracted or indexed in CompuMath Citation Index, SCOPUS, ISI Alerting Services, Science Citation Index Expanded. \par\endgroup \documentstyle{SibMatJ} \issueyear{2007} \issuenumber{4} \pagenomo \toc \title\bf A.V.~Bagaev and N.I.~Zhukova \unskip\rm,\quad \it The Isometry Groups of Riemannian Orbifolds \page{579}\rpage{723} \endtitle \title\bf W.~Guo, A.N.~Skiba, and K.P.~Shum\unskip\rm,\quad \it $X$-Quasinormal Subgroups \page{593}\rpage{742} \endtitle \title\bf M.B. Ivirsin\unskip\rm,\quad \it Parametric Control of Solutions to~an~Evolution Problem in a~Neighborhood of an~Unstable Stationary Regime \page{606}\rpage{760} \endtitle \title\bf B.~Jovanovi\'c\unskip\rm,\quad \it The Cartan Model of the Canonical Vector Bundles over the Grassmannian Manifolds \page{616}\rpage{772} \endtitle \title\bf M.B.~Karmanova \unskip\rm,\quad \it Area and Coarea Formulas for the Mappings of Sobolev Classes with Values in a~Metric Space \page{621}\rpage{778} \endtitle \title\bf M.V.~Korobkov and E.Yu. Panov\unskip\rm,\quad \it Necessary and Sufficient~Conditions for a~Curve to Be the Gradient~Range of a~$C^1$-Smooth Function \page{629}\rpage{789} \endtitle \title\bf S.F.~Lukomskii\unskip\rm,\quad \it $\Lambda (\Psi)$-Fluctuation and the Fourier--Walsh Series of Bounded Functions \page{648}\rpage{811} \endtitle \title\bf A.A.~Makhnev and D.V.~Paduchikh \unskip\rm,\quad \it A~New Estimate for the Vertex Number of an~Edge-Regular Graph \page{653}\rpage{817} \endtitle \title\bf V.S.~Monakhov and V.N.~Tyutyanov \unskip\rm,\quad \it On Finite Groups with Some Subgroups of Prime Indices \page{666}\rpage{833} \endtitle \title\bf S.~Ponomarev and M.~Turowska\unskip\rm,\quad \it Lipschitz Mappings, Contingents, and Differentiability \page{669}\rpage{837} \endtitle \title\bf A.S.~Romanov \unskip\rm,\quad \it Traces of Functions of Generalized Sobolev Classes \page{678}\rpage{848} \endtitle \title\bf V.G.~Romanov\unskip\rm,\quad \it On the Problem of Determining the Structure of a~Layered Medium and the Shape of an~Impulse Source \page{694}\rpage{867} \endtitle \title\bf M.S.~Salakhitdinov and A.K.~Urinov\unskip\rm,\quad \it Eigenvalue Problems for a Mixed-Type Equation with Two Singular Coefficients \page{707}\rpage{882} \endtitle \title\bf M.V.~Semenova\unskip\rm,\quad \it On Lattices Embeddable into Subsemigroup Lattices. {\rm V.} Trees \page{718}\rpage{894} \endtitle \title\bf V.V.~Starkov \unskip\rm,\quad \it Locally Biholomorphic Mappings of Multiconnected Domains \page{733}\rpage{914} \endtitle \title\bf D.~G.~Fon-Der-Flaass\unskip\rm,\quad \it Perfect $2$-Colorings of a Hypercube \page{740}\rpage{923} \endtitle \tocbreak \title\bf A.A.~Shcheglova \unskip\rm,\quad \it Nonlinear Differential Algebraic Equations \page{746}\rpage{931} \endtitle \title\bf E.I.~Yashagin \unskip\rm,\quad \it An~Example of a~Maximal Unimodular Dirichlet Algebra \page{762}\rpage{949} \endtitle \endtoc \vskip2cm \begingroup\leftskip=1in\rightskip=1in\tenpoint\noindent {\it Siberian Mathematical Journal\/} is abstracted or indexed in CompuMath Citation Index, SCOPUS, ISI Alerting Services, Science Citation Index Expanded. \par\endgroup \documentstyle{SibMatJ} \issueyear{2007} \issuenumber{5} \pagenomo \toc \title\bf S. S. Kutateladze \unskip\rm,\quad \it Alexandrov Par Excellence \page{767}\rpage{961} \endtitle \title\bf E.P.~Aksenteva and F.N.~Garifyanov\unskip\rm,\quad \it Constructing an~Automorphic Form from the Orbit of a~Transformation \page{769}\rpage{963} \endtitle \title\bf Ya.~V. Bazaikin and I.V. Matvienko\unskip\rm,\quad \it On the Four-Dimensional $T^2$-Manifolds of Positive Ricci Curvature \page{778}\rpage{973} \endtitle \title\bf L.N. Bondar\unskip\rm,\quad \it The Behavior at Infinity of~a~Solution to a~Sobolev Type System \page{784}\rpage{980} \endtitle \title\bf A.M. Gaisin and D.I. Sergeeva\unskip\rm,\quad \it Entire Functions with a~Given Sequence of Zeros and of Regular Behavior on the Real Axis.~{\rm I} \page{798}\rpage{995} \endtitle \title\bf M.E.~Goncharov\unskip\rm,\quad \it The Classical Yang--Baxter Equation on~Alternative Algebras: The~Alternative D-Bialgebra~Structure on Cayley--Dickson Matrix Algebras \page{809}\rpage{1008} \endtitle \title\bf G.V.~Demidenko and I.I. Matveeva\unskip\rm,\quad \it Stability of Solutions to~Delay Differential Equations with Periodic Coefficients of~Linear Terms \page{824}\rpage{1025} \endtitle \title\bf A.L. Kazakov\unskip\rm,\quad \it The Generalized Cauchy Problem with Data on Two Surfaces for a~Quasilinear Analytic System \page{837}\rpage{1041} \endtitle \title\bf M.~Kirane and N.~Tatar\unskip\rm,\quad \it Nonexistence for the Laplace Equation with a~Dynamical Boundary Condition of~Fractional Type \page{849}\rpage{1056} \endtitle \title\bf A.I.~Kornev\unskip\rm,\quad \it Complete Radicals of Some Group Rings \page{857}\rpage{1065} \endtitle \title\bf A.M.~Kytmanov and S.G. Myslivets\unskip\rm,\quad \it On the Zeta-Function of Systems of Nonlinear Equations \page{863}\rpage{1073} \endtitle \title\bf A.S.~Morozov and M.A.~Lvova\unskip\rm,\quad \it On Computable Formal Concepts in Computable Formal Contexts \page{871}\rpage{1083} \endtitle \title\bf A.L.~Mylnikov \unskip\rm,\quad \it Minimal Non-Group-Like Twisted Subsets with Involutions \page{879}\rpage{1093} \endtitle \title\bf R.~Oinarov\unskip\rm,\quad \it Boundedness and Compactness of Volterra Type Integral Operators \page{884}\rpage{1100} \endtitle \title\bf N.I. Pogodaev\unskip\rm, \it On the Properties of Solutions to the Goursat--Darboux Problem with Boundary and Distributed Controls \page{897}\rpage{1116} \endtitle \title\bf R.K. Romanovskii and M.V. Mendziv\unskip\rm,\quad \it Stability of Solutions to the Cauchy Problem for a~Plane Hyperbolic~System with Time-Periodic Coefficients \page{913}\rpage{1134} \endtitle \title\bf A.A.~Ryabchenko \unskip\rm,\quad \it Isomorphisms of Cayley Graphs of a~Free Abelian Group \page{919}\rpage{1142} \endtitle \title\bf A.I.~Sozutov and M.V.~Yanchenko\unskip\rm,\quad \it The $F$-Local Subgroups of the Groups with a~Generalized Finite Element of Order~$2$ or~$4$ \page{923}\rpage{1147} \endtitle \title\bf A.Yu.~Trynin\unskip\rm,\quad \it Estimates for the Lebesgue Functions and the~Nevai Formula for the Sinc-Approximations of Continuous Functions on an~Interval \page{929}\rpage{1155} \endtitle \title\bf E.B.~Fokina\unskip\rm,\quad \it Index Sets of Decidable Models \page{939}\rpage{1167} \endtitle \title\bf G.A.~Chumakov\unskip\rm,\quad \it Dynamics of a System of Nonlinear Differential Equations \page{949}\rpage{1180} \endtitle \endtoc \vskip2cm \begingroup\leftskip=1in\rightskip=1in\tenpoint\noindent {\it Siberian Mathematical Journal\/} is abstracted or indexed in CompuMath Citation Index, SCOPUS, ISI Alerting Services, Science Citation Index Expanded. \par\endgroup \documentstyle{SibMatJ} \issueyear{2007} \issuenumber{6} \pagenomo \toc \title\bf S.K. Vodopyanov and I.M. Pupyshev\unskip\rm,\quad \it Traces of Sobolev Functions on the~Ahlfors Sets of~Carnot Groups \page{961}\rpage{1201} \endtitle \title\bf \"O.~G\"olba\c si and N.~Aydin\unskip\rm,\quad \it Orthogonal Generalized~$(\sigma ,\tau )$-Derivations of Semiprime Rings \page{979}\rpage{1222} \endtitle \title\bf D.V.~Isangulova\unskip\rm,\quad \it Local Stability of Mappings with~Bounded Distortion on~Heisenberg Groups \page{984}\rpage{1228} \endtitle \title\bf V.A.~Kolmykov\unskip\rm,\quad \it Monoids and Decay \page{998}\rpage{1246} \endtitle \title\bf A.S.~Kondratev \unskip\rm,\quad \it Quasirecognition by the Set of Element Orders of the Groups $E_6(q)$ and~${^2}E_6(q)$ \page{1001}\rpage{1250} \endtitle \title\bf M.V. Korobkov\unskip\rm,\quad \it Properties of the $C^1$-Smooth Functions with Nowhere Dense Gradient Range \page{1019}\rpage{1272} \endtitle \title\bf A.V.~Mironenko \unskip\rm,\quad \it Sharpness of Estimates for the Least Uniform Derivation from the Class of Functions with Bounded Second Derivative \page{1029}\rpage{1285} \endtitle \title\bf L.Yu.~Polyakova \unskip\rm,\quad \it Resolutions for Free Partially Commutative Monoids \page{1038--1045}\rpage{1295--1304} \endtitle \title\bf S.~Ponomarev\unskip\rm,\quad \it Some Properties of Von Koch's Curves \page{1046}\rpage{1305} \endtitle \title\bf S.V.~Pchelintsev\unskip\rm,\quad \it Exceptional Prime Alternative Algebras \page{1060}\rpage{1322} \endtitle \title\bf V.G. Romanov\unskip\rm,\quad \it Determining the Parameters of a~Stratified Piecewise Constant Medium for the Unknown Shape of an~Impulse Source \page{1074}\rpage{1338} \endtitle \title\bf V.G. Ryabykh\unskip\rm,\quad \it A~Necessary and Sufficient Condition for Existence of~Extremal Functions of a~Linear Functional on~$H_1$ \page{1085}\rpage{1351} \endtitle \title\bf V.I.~Ryazanov and E.A.~Sevostyanov\unskip\rm,\quad \it Equicontinuous Classes of Ring $Q$-Homeomorphisms \page{1093}\rpage{1361} \endtitle \title\bf J.~A.~Tussupov \unskip\rm,\quad \it An~Autostable~$2$ Nilpotent Group With No Scott Family of Finitary Formulas \page{1106}\rpage{1377} \endtitle \title\bf A.N.~Khisamiev \unskip\rm,\quad \it On Quasiresolvent Periodic Abelian Groups \page{1115}\rpage{1389} \endtitle \title\bf I.V. Shirokov\unskip\rm,\quad \it Differential Invariants of the Transformation Group of a~Homogeneous Space \page{1127}\rpage{1405} \endtitle \title\bf O.V. Shishkina\unskip\rm,\quad \it The Neumann Stability of High-Order Symmetric Schemes for Convection-Diffusion Problems \page{1141}\rpage{1422} \endtitle \tocbreak \medbreak \leftline {\xiibf Index} \nobreak \smallskip \title \rm Author Index, Volume 48, Numbers 1--6, 2007 \page{1147}\rpage{1429}\endtitle\nobreak \title \rm Tables of Contents, Volume 48, Numbers 1--6, 2007 \page{1151}\rpage\endtitle \endtoc \vskip2cm \begingroup\leftskip=1in\rightskip=1in\tenpoint\noindent {\it Siberian Mathematical Journal\/} is abstracted or indexed in CompuMath Citation Index, SCOPUS, ISI Alerting Services, Science Citation Index Expanded. \par\endgroup