Differential algebra of biquaternions. 4. Twistor and twistors fields

On base of differential biquaternions algebra and generalized functions theory the biquaternionic wave equation is considered under vector representation of its structural coefficient. Its generalized solutions are constructed, which describe nonstationary, time-harmonic and static twistors. Elementary harmohic twistors are determined, their biquaternions of energy-inpulse are calculated. By use of them polorized and unpolarized twistors field have been constructed.