conjecture # L$-functions of varieties over global fields; Birch - Swinnerton - Dyer    11G40  
conjecture, etc.) # isomorphism problems (reconstruction    05C60  
conjectures (intersection theorems) # homological    13D22  
conjectures, nonabelian class field theory # Langlands - Weil    11R39  
conjectures, nonabelian class field theory # Langlands - Weil    11S37  
conjugacy classes   20E45  
conjugate functions, conjugate series, singular integrals   42A50  
connected and locally connected spaces (general aspects)   54D05  
connected spaces (general aspects) # connected and locally    54D05  
connected with nontransversal intersection # bifurcations    37G25  
connectedness # higher-dimensional local    54F35  
connection problems (linear and nonlinear) # Stokes phenomena and    34M40  
connection with control problems # PDE in    35B37  
connection with logical questions # automata and formal grammars in    03D05  
connection with modular forms # Dirichlet series and functional equations in    11F66  
connections # linear and affine    53B05  
connections # other    53B15  
connections # projective    53B10  
connections and metrics on vector bundles (Hermite - Einstein - Yang - Mills) # special    53C07  
connections of semigroups with homological algebra and category theory   20M50  
connections with differential equations   31A35  
connections with differential equations   31B35  
connections with groups, algebras, and related topics   33C80  
connections with homological algebra and category theory   20Jxx  
connections with logic   11Uxx  
connections with logic   12Lxx  
connections with logic and set theory # other    28E15  
connections with other structures, applications   54Hxx  
connections with quantum groups, Chevalley groups, $p$-adic groups, Hecke algebras, and related topics   33D80  
connections with real algebraic geometry (fewnomials, desingularization, zeros of Abelian integrals, etc.)   34C08  
connections, general theory   53C05  
connective $K$-theory, cobordism   19L41  
connectivity   05C40  
Connes) # noncommutative geometry (\`a la    58B34  
consequences of geometric convexity # topological    32F27  
consequences of geometric convexity (vanishing theorems, etc.) # analytical    32F32  
conservation laws   35L65  
conservation laws # symmetries and    70S10  
conservation laws, reverse symmetries, invariant manifolds and their bifurcations, reduction # symmetries and    70H33  
conservation laws; groups of motions # gravitational energy and    83C40  
conservation of energy   531.62  
considerations # general    62C05  
considerations # metamathematical    20A10  
considered as particles # nuclei and atoms    539.723  
consistency and independence results   03E35  
consistency and independence results   54A35  
consistency and interpretations # relative    03F25  
constant coefficients # equations and systems with    35Exx  
constant coefficients # overdetermined systems with    35N05  
constants # best    41A44  
constants # elastic    531.381  
constants # evaluation of    11Y60  
constants # Tauberian    40E20  
constants and oscillation limits # Tauberian    40D10  
constitutive equations # effective    74Q15  
constitutive equations # linear    74D05  
constitutive equations # nonlinear    74D10  
constitutive functions # theory of    74A20  
constrained dynamics, Dirac's theory of constraints   70H45  
constraints # approximation with    41A29  
constraints # distribution of integers with specified multiplicative    11N25  
constraints # inference under    62F30  
constructible sheaves; intersection cohomology # stratifications;    32S60  
construction of graphs # theory and    511.5  
construction, monad or triad), algebras for a triple, homology and derived functors for triples # triples (=standard    18C15  
constructions # adjunction spaces and similar    54B17  
constructions # bar and cobar    57T30  
constructions # basic    54Bxx  
constructions # geometric    51M15  
constructions # other model    03C30  
constructions # rings and algebras arising under various    16Sxx  
constructions # Stone space and related    06E15  
constructions # ultraproducts and related    03C20  
constructions of spaces (spaces of ultrafilters, etc.) # special    54D80  
constructions, group-theoretic treatment # loop groups and related    22E67  
constructive and recursive analysis   03F60  
constructive functional analysis   46S30  
constructive geometry # combinatorial and    516.13  
constructive mathematics # other    03F65  
constructive mathematics # proof theory and    03Fxx  
constructive operator theory   47S30  
constructive quantum field theory   81T08  
constructive real analysis   26E40  
constructive systems # metamathematics of    03F50  
consumer behavior, demand theory   91B40  
consumer reports # buyers' guides and    005.30296  
contact   74M15  
contact and almost symplectic manifolds # almost    53D15  
contact manifolds # global theory of symplectic and    53D35  
contact manifolds, general   53D10  
contact systems   37J55  
contact topology # symplectic and    57R17  
contact with a solid surface # motion of a rigid body in    70E18  
contemporary   01A65  
content # collections of articles of miscellaneous specific    00B15  
contents, measures, outer measures, capacities   28A12  
context of convex polytopes, convexity in combinatorial structures, etc.) # matroids (realizations in the    52B40  
contingency tables   62H17  
continua # thermodynamics of    80A17  
continua and generalizations   54F15  
continua theory in dynamics   37B45  
continuation # analytic    30B40  
continuation # analytic    32Dxx  
continuation and prolongation of solutions of PDE   35B60  
continuation of analytic objects   32D15  
continued fraction calculations   11Y65  
continued fractions   11A55  
continued fractions   30B70  
continued fractions # convergence and divergence of    40A15  
continued fractions # metric theory of    11K50  
continued fractions and generalizations   11J70  
continuity # automatic    46H40  
continuity # weak and generalized    54C08  
continuity and differentiation questions   26B05  
continuity and related questions (modulus of continuity, semicontinuity, discontinuities, etc.)   26A15  
continuity and singularity of induced measures   60G30  
continuity properties of mappings   58C07  
continuity, dimension, limit   515.222  
continuity, dimension, limit   515.8222  
continuity, dimension, limit   515.9222  
continuity, semicontinuity, discontinuities, etc.) # continuity and related questions (modulus of    26A15  
continuous and differentiable maps   46T20  
continuous cohomology   22E41  
continuous families of measure-preserving transformations # one-parameter    28D10  
continuous families of measure-preserving transformations # one-parameter    37A10  
continuous functions # absolutely    26A46  
continuous functions, function algebras # Banach algebras of    46J10  
continuous functions, functions of bounded variation # absolutely    26B30  
continuous geometries and related topics   51D30  
continuous lattices and posets, applications   06B35  
continuous location   90B85  
continuous mappings # categories of topological spaces and    18B30  
continuous maps   54C05  
continuous parameter # Markov chains with    60J27  
continuous parameter # Markov processes with    60J25  
continuous parameter # martingales with    60G44  
continuous, $p$-adic and abstract analogues   11K41  
continuous, continuous, smooth) # maps of the interval (piecewise    37E05  
continuous, differentiable or analytic functions # Banach spaces of    46E15  
continuous, differentiable or analytic functions # Hilbert spaces of    46E20  
continuous, differentiable or analytic functions # lattices of    46E05  
continuous, differentiable or analytic functions # rings and algebras of    46E25  
continuous, differentiable or analytic functions # topological linear spaces of    46E10  
continuum # cardinal characteristics of the    03E17  
continuum hypothesis and Martin's axiom   03E50  
continuum limits   81T27  
continuum models (systems of particles, etc.)   82B21  
continuum models (systems of particles, etc.) # dynamic    82C21  
contraction # expansion and    536.41  
contraction of the boundary # method of    65N45  
contractions and nonselfadjoint operators # canonical models for    47A45  
contributions to mathematical education # philosophical and theoretical    97D20  
control # adaptive    93C40  
control # bibliographic analysis and    025.3  
control # dynamical systems in    37N35  
control # feedback    93B52  
control # fuzzy    93C42  
control # H^\infty$-   93B36  
control # optimal stochastic    93E20  
control # robot dynamics and    70E60  
control # stochastic learning and adaptive    93E35  
control # stochastic systems and    93Exx  
control # subject analysis and    025.4  
control # systems theory;    93-XX  
control # theory of communication and    003.5  
control and differential games # applications of optimal    49N90  
control and optimization # flow    76B75  
control and optimization # flow    76D55  
control and optimization # flow    76N25  
control and other statistical adjustements # quality    519.86  
control and rating # achievement    97D60  
control of mechanical systems   70Q05  
control of turbulent flows   76F70  
control problems   34H05  
control problems   34K35  
control problems # impulsive optimal    49N25  
control problems # linear optimal    49N05  
control problems # PDE in connection with    35B37  
control problems involving computers (process control, etc.)   93C83  
control problems involving differential inclusions # optimal    49J24  
control problems involving equations with retarded arguments # optimal    49J25  
control problems involving integral equations # optimal    49J22  
control problems involving ordinary differential equations # optimal    49J15  
control problems involving partial differential equations # optimal    49J20  
control systems, guided systems   93Cxx  
control theory   629.8312  
control theory # applications to    58E25  
control, etc.) # control problems involving computers (process    93C83  
control, switches and devices (``smart materials'')   74M05  
control; optimization # calculus of variations and optimal    49-XX  
controllability   93B05  
controllability of vector fields on $C^\infty$ and real-analytic manifolds   57R27  
controllability, observability, and system structure   93Bxx  
controls, bang-bang controls, etc.) # optimal solutions belonging to restricted classes (Lipschitz    49J30  
convection   536.25  
convection   76E06  
convection # diffusion and    76Rxx  
convection # forced    76R05  
convection # free    76R10  
convective instability and stability # absolute and    76E15  
convective turbulence   76F35  
convergence # acceleration of    65Bxx  
convergence and absolute convergence of Fourier and trigonometric series   42A20  
convergence and divergence of continued fractions   40A15  
convergence and divergence of infinite limiting processes   40Axx  
convergence and divergence of infinite products   40A20  
convergence and divergence of integrals   40A10  
convergence and divergence of series and sequences   40A05  
convergence and divergence of series and sequences of functions   40A30  
convergence factors and summability factors   40D15  
convergence in general topology (sequences, filters, limits, convergence spaces, etc.)   54A20  
convergence of Fourier and trigonometric series # convergence and absolute    42A20  
convergence of Fourier series and of inverse transforms   43A50  
convergence of numerical methods # stability and    65L20  
convergence of numerical methods # stability and    65M12  
convergence of numerical methods # stability and    65N12  
convergence of probability measures   60B10  
convergence spaces, ranked spaces, spaces with a metric taking values in an ordered structure more general than $ # other ``topological'' linear spaces (   46A19  
convergence, degree of approximation # rate of    41A25  
convergence, etc. # bornologies and related structures; Mackey    46A17  
convergence; relaxation # methods involving semicontinuity and    49J45  
convex and discrete geometry   52-XX  
convex bodies # lattices and    11H06  
convex bodies in $2$ dimensions # lattices and    52C05  
convex bodies in $n$ dimensions # lattices and    52C07  
convex complex spaces, reduction theory # holomorphically    32E05  
convex Fr\'echet spaces and (DF)-spaces # locally    46A04  
convex functions and convex programs   52A41  
convex hypersurfaces) # convex sets in $n$ dimensions (including    52A20  
convex polytopes, convexity in combinatorial structures, etc.) # matroids (realizations in the context of    52B40  
convex programming   90C25  
convex programs # convex functions and    52A41  
convex sets   516.08  
convex sets # approximation by    52A27  
convex sets (star-shaped, ($m,n$)-convex, etc.) # variants of    52A30  
convex sets and cones of operators   47L07  
convex sets and geometry of numbers (covering radius, etc.) # applications of the theory of    94B75  
convex sets and integral geometry # random    52A22  
convex sets in $2$ dimensions (including convex curves)   52A10  
convex sets in $3$ dimensions (including convex surfaces)   52A15  
convex sets in $n$ dimensions (including convex hypersurfaces)   52A20  
convex sets in topological linear spaces; Choquet theory   46A55  
convex sets in topological vector spaces   52A07  
convex sets without dimension restrictions   52A05  
convex spaces # general theory of locally    46A03  
convex spaces (metrizable topological linear spaces, locally bounded spaces, quasi-Banach spaces, etc.) # not locally    46A16  
convex surfaces \`a la A.D._Aleksandrov) # global surface theory (   53C45  
convexity # axiomatic and generalized    52A01  
convexity # bundle    32L15  
convexity # computational aspects related to    52B55  
convexity # general    52Axx  
convexity # geometric    32Fxx  
convexity # holomorphic    32Exx  
convexity # other notions of    32F17  
convexity # other problems of combinatorial    52A37  
convexity # polynomial    32E20  
convexity # spherical and hyperbolic    52A55  
convexity # topological consequences of geometric    32F27  
convexity (vanishing theorems, etc.) # analytical consequences of geometric    32F32  
convexity properties   35E10  
convexity, $q$-concavity # q$-   32F10  
convexity, generalizations   26A51  
convexity, generalizations   26B25  
convolution   44A35  
convolution type (Abel, Picard, Toeplitz and Wiener - Hopf type) # integral equations of the    45E10  
convolution, factorization   42A85  
convolutional codes   94B10  
cooperative games   91A12  
coordinate systems   516.16  
coordinates; event, impulse-energy, configuration, state, or phase space # generalized    70G10  
corpuscular theory   535.12  
correlation (association) analysis   519.537  
correlation, canonical correlation, etc.) # measures of association (   62H20  
correspondence analysis # factor analysis and principal components;    62H25  
correspondences # holomorphic mappings and    32Hxx  
correspondences # relations and    37F05  
correspondences and other transformation methods (e.g. Lie - B\"acklund)   58J72  
correspondences, closure operators # Galois    06A15  
correspondences, etc. # modular    11F32  
cosine functions and higher-order Cauchy problems # operator sine and    47D09  
cosmic rays   539.7223  
cosmology   83F05  
cosmology (phylosophy of nature)   113  
cosmology,   85A40  
counterexamples   54G20  
counters # in crystal conduction    539.776  
counters # in Geiger-Müller    539.774  
counters # in proportional    539.773  
counters # in scintillation    539.775  
counting functions for algebraic and topological structures # asymptotic results on    11N45  
counting solutions of Diophantine equations   11D45  
coupling of solid mechanics with other effects   74Fxx  
covariance # analysis of variance and    519.538  
covariance # analysis of variance and    62J10  
covariant wave equations   81R20  
covering # lattice packing and    11H31  
covering # packing and    05B40  
covering in $2$ dimensions # packing and    52C15  
covering in $n$ dimensions # packing and    52C17  
covering properties (paracompact, Lindel\"of, etc.) # noncompact    54D20