Born in Buenos Aires, he relocated to Paris, where he joined a community of expatriate South American painters including Julio Le Parc and Jesús-Rafael Soto.
In 1960, Yvaral co-founded the Groupe de Recherche d’Art Visual (GRAV) with Julio Le Parc, François Morellet, Francisco Sobrino, Horacio Garcia Rossi and Joel Stein, seeking to develop a coherent abstract visual language composed of simple geometric elements.
Julio le Parc is a modern op artist and kinetic artist born in 1928 in Mendoza, Argentina.
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There is a strong group of Argentinian artists (Antonio Asis, Julio Le Parc, Louis Tomasello) as well as a strong group of Venezuelan artists (Soto, Carlos Cruz-Diez, Dario Perez-Flores, Narciso Debourg) working with the possibilities of vision, movement, and light.
In 1967, he met Jesús-Rafael Soto, Carlos Cruz-Diez and Julio Le Parc during an exhibition at the Kunstmuseum of Gothenburg.