Pseudogroup

An algebraic structure whose elements consist of selected Homeomorphisms between open subsets of aSpace, with the composition of two transformations defined on the largest possible domain. The ``germs'' of theelements of a pseudogroup form a Groupoid (Weinstein 1996).

References

Weinstein, A. ``Groupoids: Unifying Internal and External Symmetry.'' Not. Amer. Math. Soc. 43, 744-752, 1996.

• Lagrange Multiplier
• Lagrange Number (Diophantine Equation)
• Lagrange Number (Rational Approximation)
• Lagrange Polynomial
• Lagrange Remainder
• Lagrange Resolvent
• Lagrange's Continued Fraction Theorem
• Lagrange's Equation
• Lagrange's Four-Square Theorem
• Lagrange's Group Theorem
• Lagrange's Identity
• Lagrange's Interpolating Fundamental Polynomial
• Lagrange's Lemma
• Lagrange Spectrum
• Lagrangian Coefficient
• Lagrangian Derivative
• Laguerre Differential Equation
• Laguerre-Gauss Quadrature
• Laguerre Polynomial
• Laguerre Quadrature
• Laguerre's Method
• Laguerre's Repeated Fraction
• Laisant's Recurrence Formula
• Lakshmi Star
• Lal's Constant