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Table 1 Historical development of almost periodicity

From: Weighted Stepanov-like pseudo-almost automorphic mild solutions for semilinear fractional differential equations

Function Original reference
Almost periodic (AP) Bochner [1]
Asymptotic almost periodic (AAP) Fréchet [16]
Pseudo almost periodic (PAP) Zhang [17]
Weighted pseudo-almost periodic (WPAP) Diagana [18]
Stepanov-like almost periodic (\(S^{p}\)AP) Stepanov [19, 20]
Stepanov-like pseudo-almost periodic (\(S^{p}\)PAP) Diagana [21]
Weighted Stepanov-like pseudo-almost periodic (\(S^{p}\)WPAP) Diagana et al. [22]