Elliptical distribution 4 Elliptical distributions 4 Robust estimation 4 Asymptotic behaviors 2 Bootstrap 2 Consistent 2 Covariance matrix 2 EM algorithm 2 Elliptical symmetry 2 Fisher-consistency 2 Fixed point equation 2 Functional data analysis 2 Functional principal component 2 Influence function 2 Numerical comparison 2 Numerical experiments 2 Principal components 2 Smoothing 2 Statistical tests 2 Testing 2 Underlying distribution 2 conditional test 2 elliptical symmetry 2 robust estimation 2