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.

Yet Mondrian’s sketches reveal that “Blooming Apple Tree” and “Gray Tree” are the very same tree. Blooming Apple Tree by Piet Mondrian, 1912. [Image: Kunstmuseum Den Haag] ...

Piet Mondrian's 1911 work “De Grijze Boom” (“The Gray Tree”) is abstract but still clearly a tree. Alamy Stock Photo However, Mondrian’s 1912 “Bloeiende Appelboom” (“Blooming Apple ...

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.

But a year later, when he painted the same tree, those lines got a bit less tree-like. Piet Mondrian painted the same tree in "The gray tree" (left) and "Blooming apple tree" (right). ...

A 1922 painting by Piet Mondrian fetched $47.6 million at auction, becoming the Dutch artist’s third highest-selling work. Titled Composition With Large Red Plane, Bluish Gray, Yellow, Black and ...

Piet Mondrian's 1911 work “De Grijze Boom” (“The Gray Tree”) is abstract but still clearly a tree. Alamy Stock Photo However, Mondrian’s 1912 “Bloeiende Appelboom” (“Blooming Apple ...