Approximation Operator

best approximation operator

dual approximation operator

graded approximation operator

lower upper approximation operator

lower(upper) approximation operator

the expression of best approximation operator

Weak approximation operator

approximation by operator

best approximation property of interpolation operator

accounting-operator number identification(CAMA-ONI)operator

Bernstein-type operator (B-type operator)

lowering operator and raising operator

singular integral operator and potential operator

The Derived Operator of Kleene Implication Operator

the Wigner operator and the entangled Wigner operator

stationary state approximation; steady state approximation

steady state approximation; stationary state approximation

# operator