| Ladyzenskaja, O.A. | Linear and Quasilinear Equations of Parabolic Type | 35 Partial differential equations |
| Ladyzhenskaya, O.A. | The Mathematical Theory of Viscous Incompressible Flow | 35 Partial differential equations |
| Lagarias, Jeffrey | The Ultimate Challenge: The 3x+1 Problem | 11 Number theory |
| Lago, G.V. | Circuit and System Theory | 93 Systems theory; control |
| Lagrange, Rene | Polynomes et Fonctions de Legendre | 33 Special functions |
| Lakatos, Imre | Problems in the Philosophy of Mathematics; Proceedings of the International Colloquium in the Philosophy of Science, London, 1965; Volume 1 | 00 General and overarching topics; collections |
| Lakatos, Imre | Problems in the Philosophy of Science; Proceedings of the International Colloquium in the Philosophy of Science, London, 1965; Volume 3 | 00 General and overarching topics; collections |
| Lakatos, Imre | Proofs and Refutations: The Logic of Mathematical Discovery | 03 Mathematical logic and foundations |
| Lakin, William D. | Topics in Ordinary Differential Equations: A Potpourri | 34 Ordinary differential equations |
| Lallement, Gerard | Semigroups and Combinatorial Applications | 20 Group theory and generalizations |
| Lamadrid, Jesus | Almost Periodic Measures | 43 (42) Harmonic analysis |
| Lamb, J.D. | Surveys in Combinatorics, 1999 | 05 Combinatorics |
| Lamb , Sir H. | Hydrodynamics | 76 Fluid mechanics |
| Lambert, J.D. | Numerical Methods for Ordinary Differential Systems | 65 Numerical analysis |
| Lancaster, Peter | Theory of Matrices | 15 Linear and multilinear algebra; matrix theory |
| Lancoz, Cornelius | Spaces Through the Ages | 51 Geometry |
| Landau, Edmund | Aus der elementaren und additiven Zahlentheorie | 10 (11) Number theory |
| Landau, Edmund | Foundations of Analysis | 27 (28) Measure and integration |
| Lander, Eric S. | Calcuating the Secrets of Life | 92 Biology |
| Landman, Bruce | Ramsey Theory on the Integers | 05 Combinatorics |
| Lando, Sergei | Graphs on Surfaces and Their Applications | 05 Combinatorics |
| Lane, Ernest P. | A Treatise on Projective Differential Geometry | 53 Differential geometry |
| Lane, Ernest | Projective Differential Geometry of Curves And Surfaces | 51 Geometry |
| Lang, Serge | Eliptic Curves Diophantine Analysis | 10 (11) Number theory |
| Lang, Serge | A First Course in Calculus | 26 Real functions |
| Lang, Serge | Algebraic Functions | 14 Algebraic geometry |
| Lang, Serge | Algebra | 09 Abstract algebra |
| Lang, Serge | Geometry: A High School Course | 51 Geometry |
| Lang, Serge | Elliptic Functions | 33 Special functions |
| Lang, Serge | The Beauty of Doing Mathematics: Three Public Dialogues | 00 General and overarching topics; collections |
| Lang, Serge | Math!: Encounters with High School Students | 00 General and overarching topics; collections |
| Langlands, Robert P. | Base Change for GL(2) | 10 (11) Number theory |
| Lass, Harry | Vector and Tensor Analysis | 53 Differential geometry |
| Lasserre, Francois | The Birth of Mathematics in the Age of Plato | 01 History and biography |
| Lavrent'ev, M.M. | One-Dimensional Inverse Problems of Mathematical Physics | 35 Partial differential equations |
| Lavrent'ev, M.M. | Some Improperly Posed Problems of Mathematical Physics | 35 Partial differential equations |
| Lavrent'ev, M.M. | Ill-Posed problems of Mathematical Physics and Analysis | 35 Partial differential equations |
| Lavrenteev, M. | Ill-posed problems of mathematical physics and analysis | 35 Partial differential equations |
| Lawden, Derek | Elliptic Functions and Applications | 33 Special functions |
| Lawler, E.L. | The Traveling Salesman Problem | 90 Operations research, mathematical programming |
| Lawson, Charles L. | Solving Least Squares Problems | 93 Systems theory; control |
| Lawvere, F. | Conceptual Mathematics | 18 Category theory; homological algebra |
| Lax, P.D. | Partial Differential Equations | 35 Partial differential equations |
| Lax, Peter D. | Hyberbolic Systems of Conservation laws and the Mathematical Theory of Shock Waves | 35 Partial differential equations |
| Laywine, Charles | Discrete Mathematics Using Latin Squares | 05 Combinatorics |
| LeLionnais, F. | Great Currents of Mathematical Thought: Volume II | 01 History and biography |
| LeLionnais, F. | Great Currents of Mathematical Thought: Volume I | 01 History and biography |
| LeVeque, W.J. | Studies in Number Theory | 11 Number theory |
| Lebedeb, N | Special Functions and Their Applications | 33 Special functions |
| Lebedev, N.N. | Worked Problems in Applied Mathematics | 69 Mathematical physics and engineering |
| Lefschetz, Solomon | Stability of Nonlinear Control Systems | 93 Systems theory; control |
| Lefschetz, Solomon | Algebraic Topology | 55 Algebraic topology |
| Lefschetz, Solomon | Topology | 55 Algebraic topology |
| Lefschetz, Solomon | Lectures of Differential Equations | 34 Ordinary differential equations |
| Lefschetz, Solomon | Introduction to Topology | 54 General topology |
| Lefschetz, Solomon | Topics in Topology | 55 Algebraic topology |
| Lefschetz, Solomon | Algebraic Geometry | 14 Algebraic geometry |
| Leibowitz, Gerald | Lectures on Complex Function Algebras | 46 Functional analysis |
| Leighton, Walter | Introduction to the Theory of Differential Equations | 34 Ordinary differential equations |
| Lenstra, J.K. | Interfaces Between Computer Science and Operations Research | 68 Computer science |
| Lenstra, A.K. | The Development of the Number Field Sieve | 11 Number theory |
| Lesigne, Emmanuel | Heads or Tails: An Introduction to Limit Theorems in Probability | 60 Probability theory and stochastic processes |
| Lester, L. | Israel Journal of Mathematics | 00 General and overarching topics; collections |
| Letac, Gérard | Integration and Probability: Excercises and Solutions | 28 Measure and integration |
| Levitan, B | Almost periodic Functions and Differential Equations | 42 Harmonic analysis |
| Levy, Azriel | Hierarchy of Formulas in Set Theory | 03 Mathematical logic and foundations |
| Levy, Azriel | A Hierarchy of Formulas in Set Theory | 02 (03) Mathematical logic and foundations |
| Levy, Silvio | Flavors of Geometry | 51 Geometry |
| Levy, Silvio | Flavors of Geometry | 51 Geometry |
| Levy, H. | Numerical Solutions of Differential Equations | 34 Ordinary differential equations |
| Li, M | nan | 00 General and overarching topics; collections |
| Lickorish, W.B. | An Introduction to Knot Theory | 57 Manifolds and cell complexes |
| Lighthill, M | Fourier Analysis and Generalised Functions | 42 Harmonic analysis |
| Lindner, C.C. | Topics on Steiner Systems | 05 Combinatorics |
| Lions, J.L. | Differentielles Operationnelles Et Problemes Aux Limites | 35 Partial differential equations |
| Lions, J.L. | Equations Differentielles Operationnelles et Problemes aux Limites | 35 Partial differential equations |
| Lions, J.L. | Non-Homogeneous Boundary Value Problems and Applications III | 35 Partial differential equations |
| Lions, J.L. | Non-Homogeneous Boundary Value Problems and Applications II | 35 Partial differential equations |
| Lions, J.L. | Non-Homogeneous Boundary Value Problems and Applications I | 35 Partial differential equations |
| Lions, Pierre-Louis | Mathematical Topics in Fluid Mechanics | 76 Fluid mechanics |
| Lipschutz, Seymour | Discrete Mathematics | 05 Combinatorics |
| Lipschutz, Seymour | Schaum's Probability | 60 Probability theory and stochastic processes |
| Littlewood, Dudley | The Theory of Group Charaters and Matrix Representations | 20 Group theory and generalizations |
| Liu, Derong | Dynamical Systems with Saturation Nonlinearities | 93 Systems theory; control |
| Liverman, T.P.G. | Generalized Functions and Direct Operational Methods | 44 Integral transforms |
| Livingston, Charles | Knot Theory | 57 Manifolds and cell complexes |
| Livingston, Charles | Knot Theory | 55 Algebraic topology |
| Lloyd, E. | Surveys in Combinatorics; Invited Papers for the Ninth British Combinatorial Conference 1983 | 05 Combinatorics |
| Lloyd, G.E.R. | Early Greek Science: Thales to Aristotle | 01 History and biography |
| Lodge, Oliver | Pioneers of Science | 01 History and biography |
| Loomis, L.H. | An Introduction to Abstract Harmonic Analysis | 46 Functional analysis |
| Loos, Ottmar | Symmetric Spaces - Volume I | 22 Topological groups, Lie groups |
| Looss, Gerard | Elementary Stability and Bifurcation Theory | 34 Ordinary differential equations |
| Louchard, G. | Probability Theory and Computer Science | 60 Probability theory and stochastic processes |
| Lovasz, Laszlo | Algebraic Methods in Graph Theory (Vol I) | 05 Combinatorics |
| Lovasz, Laszlo | Algebraic Methods in Graph Theory (Vol II) | 05 Combinatorics |
| Love, A.E.H. | A Treatise on the Mathematical Theory of Elasticity | 73 (73) Mechanics of deformable solids |
| Lovitt, William | Linear Integral Equations | 45 Integral equations |
| Lovász, László | European Journal of Combinatorics: Special Issue on Homomorphisms and Limits | 05 Combinatorics |
| Lovász, László | An Algorithmic Theory of Numbers, Graphs, and Convexity | 68 Computer science |
| Loxton, J.H. | Number Theory and Cryptography | 94 Information and communication |
| Luebeck, Jennifer | Mathematics Teaching: Putting Research into Practive at All Levels | 97 Mathematics education |
| Luenberger, David | Optimization by Vector Space Methods | 90 Operations research, mathematical programming |
| Luenberger, David | Linear and Nonlinear Programming | 90 Operations research, mathematical programming |
| Luttrell, Wendy | Schoolsmart and Motherwise | 97 Mathematics education |
| Lutz, Frank | Triangulated Manifolds with Few Vertices and Vertex-Transitive Group Actions | 57 Manifolds and cell complexes |
| Lyapunov, A.M. | Lecture on The Theory of Mechanics | 70 Mechanics of particles and systems |
| Lyusternik, L.A. | Convex Figures and Polyhedra | 52 Convex and discrete geometry |