content_image/322213.jpg
from which (15) follows. 

## References 

<img src='content_image/322213.jpg'>

Ash, R. B. and Gardner, M. F. (1975). Topics in Stochastic Processes . Probability and Mathematical Statistics (Vol. 27). New York: Academic Press. 

Chiou, J.-M., M¨uller, H.-G., and Wang, J.-L. (2004). Functional response models. Sta- tistica Sinica 14 , 675–693. 

Cuevas, A., Febrero, M., and Fraiman, R. (2007). Robust estimation and classification for functional data via projection-based depth notions. Computational Statistics 22 , 481–496. 

Davison, A. C. and Hinkley, D. V. (1997). Bootstrap Methods and Their Application. Cambridge: Cambridge University Press. 

Fraiman, R., and Muniz, G. (2001). Trimmed means for functional data. Test 10 , 419– 440. 

Gervini, D. (2008). Robust functional estimation using the median and spherical princi- pal components. Biometrika 95 , 587–600. 

