Foundations

Foundations is an international, peer-reviewed, open access journal on mathematics, physics and chemistry published quarterly online by MDPI.

• Open Access free for readers, with article processing charges (APC) paid by authors or their institutions.
• Rapid Publication: manuscripts are peer-reviewed and a first decision is provided to authors approximately 24.3 days after submission; acceptance to publication is undertaken in 6.7 days (median values for papers published in this journal in the first half of 2026).
• Recognition of Reviewers: Reviewers whose reports are timely and of high quality receive an APC discount voucher for a future publication in an MDPI journal. Become a reviewer.
• Foundations is a companion journal of Molecules, Entropy and Mathematics.