Isomorphic Groups
Two Groups are isomorphic if the correspondence between them is One-to-One and the ``multiplication''table is preserved. For example, the Point Groups 
and 
are isomorphic Groups, written
or 
(Shanks 1993). Note that the symbol 
is also used to denote geometric Congruence.
References
Shanks, D. Solved and Unsolved Problems in Number Theory, 4th ed. New York: Chelsea, 1993.
- Linear Extension
- Linear Fractional Transformation
- Linear Group
- Linear Group Theorem
- Linearly Dependent Curves
- Linearly Dependent Functions
- Linearly Dependent Vectors
- Linearly Independent
- Linear Operator
- Linear Ordinary Differential Equation
- Linear Programming
- Linear Recurrence Sequence
- Linear Regression
- Linear Space
- Linear Stability
- Linear Transformation
- Line at Infinity
- Line Bisector
- Line Element
- Line Graph
- Line Integral
- Line of Curvature
- Line Segment
- Line Space
- L(infinity)-Norm