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Overview of symbols used.
| symbol | description |
|---|---|
| N | population size (fixed) |
| r | relative fitness of the mutated cell type |
| t | time step, N time steps are one generation |
| j,k | number of mutants |
| Tj→k | probability to go from j to k in one time step |
| Mj→kt | probability to go from j to k in t time steps |
| ct | number of mutants at time t conditioned upon no extinction, starting from 1 |
| 〈ct〉 | expected number of mutants at time t conditioned upon no extinction, starting from 1 |
| 〈ct2〉 | expected of the square of ct |
