The field of relational programming and polynomial optimization is witnessing significant developments, with a focus on improving the efficiency and scalability of existing methods. Researchers are exploring new approaches to synthesize loops with branches via algebraic geometry, and to represent positive semi-definite polynomials as sums of squares with rational coefficients. These advancements have the potential to impact various areas, including formal program verification and symbolic computation. Noteworthy papers in this area include:
- A paper that proposes a novel algorithm for constructing a sum-of-squares decomposition for positive semi-definite polynomials with rational coefficients, ensuring exact arithmetic in formal verification and symbolic computation.
- A paper that investigates the class of Boolean Promise Constraint Satisfaction Problems with polynomial threshold polymorphisms, obtaining complexity characterization results and hardness conditions.
- A paper that studies certificates of positivity for univariate polynomials with rational coefficients, improving the best-known bounds for computing rational weighted SOS representations and introducing perturbed SOS certificates.