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Mar 13, 2023 at 23:07 comment added Tadashi Thank you for bringing up these important points. Indeed, I was originally referring to the question of equivalence between hyperbolic and semidefinite programs, but didn't notice that my comment was ambiguous.
Mar 12, 2023 at 23:29 comment added Pedro Lauridsen Ribeiro Regardless of the ensuing status of the generalized Lax conjecture, if correct the claim indeed settles the case whether both kinds of programming are equivalent or not (apparently, they should be).
Mar 12, 2023 at 23:18 comment added Pedro Lauridsen Ribeiro Either way, the authors do not actually claim they've solved the generalized Lax conjecture. To quote from Remark 14 on page 24 (see also earlier, on page 4), "it has yet to easily be seen that the result of Corollary 2 provides a solution to the generalized Lax conjecture. It is because the equivalence of hyperbolic and semidefinite programs might not directly imply the equality of their feasible sets." (Corollary 2, pp. 23 from Section 7 is the stated equivalence between hyperbolic programs and semidefinite programs)
Mar 12, 2023 at 23:06 comment added Pedro Lauridsen Ribeiro Thanks for the link. The preprint is quite fresh (it was posted on the arXiv last Thursday, March 9th), so it'd perhaps be wise to wait a bit until the claim is validated, no errors are found, etc..
Mar 12, 2023 at 18:25 comment added Tadashi It appears that the question has been resolved. In the 2023 pre-print titled "Sums of Squares Representations on Singular Loci", authored by Ngoc Hoang Anh Mai and Victor Magron, it is claimed that every hyperbolic program is equivalent to a semidefinite program.
Mar 1, 2016 at 10:47 history edited Pedro Lauridsen Ribeiro CC BY-SA 3.0
Small correction
Feb 26, 2016 at 14:38 history edited Pedro Lauridsen Ribeiro CC BY-SA 3.0
Added reference, small aesthetic improvement
Feb 26, 2016 at 13:31 history edited Pedro Lauridsen Ribeiro CC BY-SA 3.0
Small aesthetic adjustments
S Feb 26, 2016 at 11:27 history suggested kjetil b halvorsen CC BY-SA 3.0
fixing spelling of name
Feb 26, 2016 at 11:12 review Suggested edits
S Feb 26, 2016 at 11:27
Feb 26, 2016 at 2:52 history edited Pedro Lauridsen Ribeiro CC BY-SA 3.0
Added explanation
Feb 23, 2016 at 4:04 history edited Pedro Lauridsen Ribeiro CC BY-SA 3.0
Small correction
Feb 22, 2016 at 22:49 history edited Pedro Lauridsen Ribeiro CC BY-SA 3.0
Small corrections
Feb 22, 2016 at 22:16 history edited Pedro Lauridsen Ribeiro CC BY-SA 3.0
Added explanation
Feb 22, 2016 at 20:43 history edited Pedro Lauridsen Ribeiro CC BY-SA 3.0
Added explanation, slight rewording
Feb 22, 2016 at 20:37 history edited Pedro Lauridsen Ribeiro CC BY-SA 3.0
Added explanation, slight rewording
Feb 22, 2016 at 20:28 history answered Pedro Lauridsen Ribeiro CC BY-SA 3.0