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math.CA2008
Searching optimal shapes for blades of a fan
Gianluca Argentini
A nonlinear differential equation about optimal shapes for blades of a fan. A boundary value differential problem from engineering, geometrical or physical bonds. A relation betwee…
math.CA2007★ 1 cited
A matrix generalization of Euler identity e^(ix) = cosx + i sinx
Gianluca Argentini
In this work we present a matrix generalization of the Euler identity about exponential representation of a complex number. The concept of matrix exponential is used in a fundament…