This letter denotes ordinal numbers that are the fixed point of the exponential map. (15[1])The Galois group of a field extension is linked to the properties of elliptic curves in a conjecture denoted by this (-5[1])letter that was proved by Ken Ribet. (15[1])Transitions (15[2])denoted by this letter can be used to simplify the state diagram of a nondeterministic (15[1]-5[1])finite (15[1])automaton. (15[1])For any positive number denoted by this letter, there exists a positive (*) delta (10[3])that (10[2])a (10[1])function (10[1]-5[1])is arbitrarily closed (10[2])to (10[1])L (10[1])in a definition of the limit. (10[3])The identity (10[1])element of the concatenation operation is denoted by this letter. A quantity denoted (10[1])that characterizes the shapes of conic sections is called eccentricity. For 10 points, identify (10[1])this Greek letter that denotes (10[1])the empty strings, which can also denote an arbitrarily (10[1])small number. ■END■ (10[2]0[2])