Wọ́n sọọ́ lórúkọ Blagovest Sendov.Conction yìí sọ pé fún polynomial pẹ̀lú gbogbo àwọn  R1, ..., rn inú unit |z| Adz| < 1, ìkankan àwọn ń root tí Oyev wọn kò ju ẹyọ kan láti ojú kan.Àwọn ìtọ́kasí Gò G.. 