Notations

Notations O

O ⁡ ( x )
order not exceeding; (2.1.3)
o ⁡ ( x )
order less than; (2.1.2)
O n ⁡ ( x )
Neumann’s polynomial; (10.23.12)
ω ⁡ ( z )
Wright ω-function; §4.13