We study estiuultion of regression parameters in heteroscedastic linear models when the ntunber of parameters is large. The results

A bstract We investigate a relationship between particular class of two-dimensional integrable non-linear σ -models and variations Hodge structures. Concretely, our aim is to study the classical dynamics λ -deformed G / model show that special solutions its equations motion precisely describes one-parameter variation find this obtained by identifying group-valued field -model with Weil operator...