Tsallis Q-theory
As an application, In Tsallis' q-theory, one begins by defining the q-addition of two real numbers:
Q-addition is commutative, associative, has 0 as the identity element, and for q=1 becomes the usual sum of x and y. By inversion, q-subtraction is defined:
The q-product is defined as:
where is defined to mean x when and 0 when . Note that for, q-division by zero is allowed. By inversion, q-division is defined as:
Many q-functions may be defined using the above building blocks, such as the Tsallis q-exponential and its inverse, the Tsallis q-logarithm which are defined as:
Read more about this topic: q-analog