?????? ?????? ??????? ????? ???? ????? ????? ?? ???? ?? ?????? ? ??????? ???????? . ????? ??? ?????? ?? ??? compressive ???????? . ??????? ?? ?????? ?????? ????? {???? ? ?????? ??????? . ???? ????? ??????? ??????? ????? ????? ??????? ??????? ???? ?????? ?? ???? ??????. ?????? ????? ?????, ??? ??