BREMEN.- He is one of the most prominent artists of the 20th century, yet scarcely anyone knows his name. Art history views him as the pioneer of Art Informel painting, and yet the complexity of his artistic existence defies any categorization. In 1932, just nineteen years old, he leaves Germany to have his finger on the pulse of time in Paris. He gains access to bohemian circles there but continues to be a loner. For throughout his life he struggled for an existence beyond the middle-class, and in doing so not lastly slid into the vicissitudes of the National Socialist war against European culture. Alfred Otto Wolfgang Schulze, who began calling himself WOLS in 1937, is one of the most colorful artist personalities of the last century. In close contact with the great artists and poets in 1930s Paris, he launched his artistic career as a self-taught artist