Core Concepts
Weihrauch lattice equational theory with multiplication is studied using combinatorial descriptions and complexity analysis.
Abstract
The study focuses on the equational theory of the Weihrauch lattice with multiplication, providing insights into its structure and complexity. The authors investigate the distributive properties of lattice operations, highlighting connections to other structures. Combinatorial reductions between terms are used to determine universal validity of equations, showcasing the intricate relationships within the Weihrauch degrees. The content delves into axiom systems, completeness proofs, and complexity analysis for determining validity in this context.
Stats
"The problem 'is the inequality t ≤• u valid?' in the structure (W•, ⊓, ×) is Σp 2-complete."
"The problem 'is the inequality t ≤• u valid?' in the structure (W•, ⊓, ×, (−)∗) is Σp 2-complete."
"The problem 'is the inequality t ≤• u valid?' in the structure (W•, ⊓, ×, 1) is Σp 2-complete."
"The problem 'is the inequality t ≤• u valid?' in the structure (W•, ⊓, ×, 1) is Πp 3-complete."
"The problem 'is the inequality t ≤• u valid?' in the structure (W•, ⊓, ×, 1) is Πp 3-complete."
Quotes
"The Weihrauch degrees come with a rich algebraic structure."
"Deciding which equations are true in this sense is complete for the third level of the polynomial hierarchy."
"Our contributions focus on investigating equational theory aspects of Weihrauch degrees."