Steuart Pittman loves a hard edge. In all his pared-down abstract paintings, whether they’re large or small, oil or acrylic, ...

Uniformly painted gray, his conceptual works are frequently composed of simple geometic forms, such as a single triangle or rectangle broken into modular elements. “I want my paintings to be: abstract ...

Large, colorful abstract paintings by Pittsburgh-area artist Chuck Olson are displayed in an exhibition opening Sunday at the ...

Even abstract paintings such as Piet Mondrian's 1912 cubist Gray Tree, which doesn’t visually show treelike colours, can be identified as trees if a realistic value for α is used, researchers say.