On concepts of directional differentiability

Necessary Conditions for an Extremum

E. Polak, B. N. Pshenichnyĭ · Mathematics of Computation · 1972 · 383 citations

Natural Sciences, Mathematics, Optimization +6

Introduction to Minimax

J. R., V. F. Demyanov, V. N. Malozemov · Mathematics of Computation · 1976 · 358 citations

An Abstract Variational Theory with Applications to a Broad Class of Optimization Problems. I. General Theory

Lucien W. Neustadt · SIAM Journal on Control · 1966 · 166 citations

Natural Sciences, Mathematics, Optimization +14

The theory of differentiation in linear topological spaces

V. I. Averbukh, O. G. Smolyanov · Russian Mathematical Surveys · 1967 · 144 citations

Natural Sciences, Mathematics, Derivatives +15

The various definitions of the derivative in linear topological spaces

V. I. Averbukh, O. G. Smolyanov · Russian Mathematical Surveys · 1968 · 121 citations

Natural Sciences, Mathematics, Derivatives +6