At which university did Georgia O'Keeffe study with artist Arthur Wesley Dow?

Georgia O'Keeffe studied with Arthur Wesley Dow at Columbia University.

O'Keeffe attended Columbia University's Teachers College in New York, where she studied with Arthur Wesley Dow. Dow emphasized composition, design, and the expressive use of line, color, and shape rather than strict imitation of nature. His ideas had a lasting effect on O'Keeffe's approach to abstraction.

Her studies with Dow followed earlier training at the School of the Art Institute of Chicago and the Art Students League in New York. She later taught art in Texas and Virginia, where she began creating a series of abstract charcoal drawings that represented ideas and sensations through simplified forms.

O'Keeffe did not earn a conventional university degree from Columbia in the way the question's wording might suggest. The key identification is Columbia University's Teachers College, where Dow taught. His influence is frequently cited as an important bridge between O'Keeffe's academic training and her mature modernist style.