Jacobi, Carl Gustav Jakob --
Jacobi identity --
Jacobian --
Jacobian matrix --
Jacobson radical --
Jaco-Shalen-Johannson torus decomposition --
Janiszewski, Zygmunt --
Janko group --
Jaynes, Edwin Thompson --
Jensen's inequality --
Johnson solid --
Jones, Vaughan Frederick Randal --
Jordan, Camille --
Jordan curve theorem --
Jordan normal form --
Josephus permutation --
Julia, Gaston --
Julia set --
K-Hyperperfect number --
K-fold perfect number --
Kac --
Kac, Mark --
Kähler, Erich --
Kähler manifold --
Kaiser window --
Kalman filter --
Kanada, Yasumasa --
Kantorovich, Leonid Vitalyevich --
Karnaugh map --
Kastner, Abraham Gotthelf --
KdV equation --
Kêng-Chih, Tsu --
Kepler, Johannes --
Kepler's laws of planetary motion --
Kepler solid --
Kernel (algebra) --
Kernel (category theory) --
Kernel of a homomorphism --
Kernel trick --
Key --
Kidinnu --
Killing field --
Kinematics --
Kinetic energy --
Kirchoff's Laws --
Kleene algebra --
Kleene star --
Kleene, Stephen --
Kleene's recursion theorem --
Klein bottle --
Klein, Felix --
Klein four-group --
Klein quartic --
Knapsack problem --
Knaster-Tarski theorem --
Knight's tour --
Knot invariant --
Knot polynomial --
Knot theory --
Knuth, Donald --
Knuth -yllion --
Knuths up-arrow notation --
Koch snowflake --
Kodaira, Kunihiko --
Kolmogorov, Andrey Nikolaevich --
Kolmogorov-Arnold-Moser theorem --
Kolmogorov Smirnov test --
Kolmogorov space --
Kolmogorov's zero-one law --
König's lemma --
König's theorem --
Kontsevich, Maxim --
Korteweg, Diederik --
Kovalevskaya, Sofia --
Kovalevskaya, Sofia Vasilyevna --
Kowa, Seki --
Kramp, Christian --
Kronecker, Leopold --
Krull dimension --
Kruskal, Martin --
Kruskal's algorithm --
K-theory --
Kummer --
Kummer, Ernst --
Kummer, Ernst Eduard --
Kuratowski, Kazimierz --
Kuratowski closure axioms --
Kurtosis --
Kutta, Martin Wilhelm --
L-function --
L-system --
La Géometrie --
Lafforgue --
Lafforgue, Laurent --
Lagged Fibonacci generator --
Lagrange, Joseph-Louis de --
Lagrange's four-square theorem -
Lagrange inversion theorem --
Lagrange multiplier --
Lagrange polynomial --
Lagrange's theorem --
Lagrangian mechanics --
Lah, Ivo --
Lah number --
Lambda calculus --
Lambert, Johann Heinrich --
Lambert's cosine law --
Lambert's W function --
Lanczos, Cornelius --
Landau, Edmund --
Landau-Ramanujan constant --
Landau's function --
Langevin equation --
Langlands program --
Langlands, Robert --
Langton's ant --
Laplace, Pierre Simon --
Laplace operator --
Laplace transform --
Laplace's equation --
Laplace-Stieltjes transform --
Large number --
Largest remainder method --
Laser --
LaTeX --
Latin square --
Latitude --
Lattice --
Lattice model --
Laurent expansion theorem --
Laurent, Pierre-Alphonse --
Laurent series --
Law of cosines --
Law of large numbers --
Law of nature --
Law of sines --
Law of tangents --
Law of total expectation --
Law of total probability --
Law of total variance --
Laws of logic --
Lawson's conjecture --
Leaf node --
Lefschetz, Solomon --
Least common denominator --
Least common multiple --
Least squares --
Lebesgue, Henri Leon --
Lebesgue integration --
Lebesgue measure --
Lebesgue-Stieltjes Integral --
Leech lattice --
Lefschetz, Solomon --
Legendre, Adrien-Marie --
Legendre polynomials --
Legendre form --
Legendre symbol --
Legendre's constant --
Lehmann-Scheffé theorem --
Lehmer, Derrick Henry --
Lehmer number --
Leibniz, Gottfried --
Lemma --
Lemoine point --
Length --
Lenstra elliptic curve factorization --
Leray, Jean --
Levenberg --
Levenberg, Kenneth --
Levenberg-Marquardt nonlinear least squares fitting algorithm --
Levi-Civita connection --
Levi-Civita symbol --
Levinson recursion --
Levy flights --
L'Hôpital, Guillaume de --
L'Hopital's rule --
LHS --
Liar paradox --
Lie algebra --
Lie derivative --
Lie group --
Lie group decompositions --
Lie, Sophus --
Lifter --
Likelihood --
Likelihood-ratio test --
Limit (category theory) --
Limit cardinal --
Limit (mathematics) --
Limit of a function --
Limit of a sequence --
Limit ordinal --
Limit point --
Limit superior and limit inferior --
Lindemann, Carl Louis Ferdinand von --
Lindemann-Weierstrass theorem --
Line --
Line bundle --
Linear algebraic group --
Linear algebra/Basis for a vector space --
Linear algebra/Generating a vector space --
Linear algebra/Subspace --
Linear classifier --
Linear combination --
Linear complementarity problem --
Linear congruence theorem --
Linear congruential generator --
Linear dependence --
Linear differential equation --
Linear dynamic system --
Linear elasticity --
Linear equations --
Linear feedback shift register --
Linear functional --
Linear independence --
Linear map --
Linear model --
Linear operator --
Linear order --
Linear prediction --
Linear programming --
Linear regression --
Linear search --
Linear span --
Linear theory --
Linear transformation --
Linearithmic --
Linearity of differentiation --
Linearity of integration --
Linearly independent --
Linearly ordered group --
Link topology --
Linnik, Yuri Vladimirovich --
Linnik's theorem --
Lions, Jacques-Louis --
Liouville --
Liouville function --
Liouville, Joseph --
Liouville-Neumann series --
Liouville number --
Liouville's theorem --
Liouville's theorem (complex analysis --
Liouville's theorem (Hamiltonian) --
Lipschitz continuity --
Lipschitz, Rudolf --
LISP --
J
K
L
Little's law --
Littlewood, John Edensor --
Lituus --
Liu Hui --
Lobachevsky, Nikolai Ivanovich --
Local analysis --
Local compactness --
Local field --
Local homeomorphism --
Local quantum physics --
Local ring --
Local search --
Local zeta function --
Locality --
Localization of a ring --
Locally constant function --
Locally ringed space --
Logarithm --
Logarithmic identities --
Logarithmic integral --
Logarithmic scale --
Logarithmic spiral --
Logic --
Logical calculus --
Logical conjunction --
Logical disjunction --
Logical negation --
Logical operator --
Logistic curve --
Logistic map --
Logistics --
Logit --
Log-normal distribution --
Long division --
Long exact sequence --
Long line (topology) --
Longest-common subsequence problem --
Longitude --
Loop (knot) Talk:Loop (knot) --
Loop (mathematics) --
Lorentz, Hendrik --
Lorentz transformation equations --
Lorenz attractor --
Lorenz curve --
Lorentz group --
Lorenz, Edward --
Loss of significance --
Lower limit topology --
Lowest common denominator --
Löwenheim-Skolem theorem --
Lp space --
LU decomposition --
Lucas, François-Édouard-Anatole --
Lucas pseudoprime --
Lucasian professor --
Lucas-Lehmer primality test --
Lucifer cipher --
Lucky number --
Luhn formula --
Lvov school of mathematics --
Lyapunov, Aleksandr --
Lyapunov characteristic exponent --
Lyapunov characteristic number --
Lyapunov condition --
Lyapunov equation --
Lyapunov exponent --
Lyapunov fractal --
Lyapunov function --
Lyapunov stability --
Lyapunov test --
Lyapunov time --
Lyapunov's central limit theorem --
LZW --