Firdaus E. Udwadia

University of Southern California engineering researcher who, with co-author Thanapat Wanichanon, published "Hamel's Paradox and the Foundations of Analytical Dynamics" (Applied Mathematics and Computation, 2010) — the paper that coined the term "Hamel's paradox" and asserted that Georg Hamel's 1949 textbook left unexplained both why substituting a velocity constraint into the kinetic energy expression before forming Lagrange's equations produces false equations of motion, and under what conditions it does.

Matters to this vault as the originator of the eponymous claim that Robert Singer's 2026 preprint "The Myth of Hamel's Paradox" (arXiv:2609.35857) disputes as historically mistaken. Udwadia's 2010 paper, read directly by this vault rather than only through Singer's quotations, confirms Singer's quotations of it are accurate — Udwadia and Wanichanon do write what Singer says they write — even as the underlying dispute over what Hamel's own textbook says, a few pages further on, remains open. See question-corroborate-singer-2609-35857-hamels-paradox-myth for the single-source caveat on the wider cluster.

References

• claim-hamels-paradox-is-a-2010-coinage-not-hamels-own-question
• claim-udwadia-wanichanon-2010-paper-read-directly-confirms-singers-quotations