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math.CO updates on arXiv.org

Complement Submodular Information Measures for Balanced and Robust Data Selection A Proof of a Conjecture on Positive and Negative Square Energies of Unicyclic Graphs Laplacian Spectrum of the Weakly Zero-Divisor Graph of a Finite Commutative Ring An identity for second Eulerian numbers via lattice-point counting $t$-tone edge coloring of graphs Constructing Maximal Bumpless Pipedreams for Double Grothendieck Polynomials Mubayi's Polynomial-Ideal Conjecture and Cover-Ideal Turán Methods Implicit Binarization via Complex Phase Dynamics in Combinatorial Optimization The limits of Schur multipliers in Pólya conversion problems for the $q$-permanent function Universality theorems for generalized splines Framing Triangulations for Arbitrary Integer Flow Polytopes On the Common Generalization of Gentle Algebras and Framed Directed Acyclic Graphs The complexity of frugal digraph homomorphisms Chaotic and periodic behavior of jeu de taquin on infinite Young tableaux Enumerating Pattern Avoiding Parking Functions Incidence toric ideals and three-point functions Unique Winning Opening Move in Three-Row Chomp Strong majority colorings of graphs A Balancing Theorem for Spanning Trees of Rectangular Grid Graphs Spectral radius and edge-disjoint connected factors of graphs New invariants for rank metric codes, with applications to the classification of rank two semifields of order 256 Flexible DP-4-coloring of planar graphs without 4-cycles and intersecting triangles Balanced intersection size distributions in projective planes List Reconstruction Problem with List Size Two Is Dimensionality a Barrier for Retrieval Models? The INIEP: Irreducible and Positive Realizations The number of Pfaffian orientations on punctured polygonally cellulated surfaces Explicit Construction of Polytopes whose Ehrhart Polynomials Realize any Given Sign Pattern Finite-state enumeration of adjacency-constrained 132-avoiding permutations AMDS and quantum AMDS Constacyclic codes of length $4p^ς$ over $\mathbb{F}_{{p}^{m}}$
Polynomial graph invariants induced from the ${\mathfrak ...
N. Kodaneva, S. Lando · 2023-12-29 · via math.CO updates on arXiv.org

Weight systems are functions on chord diagrams satisfying so-called Vassiliev's $4$-term relations. They are closely related to finite type knot invariants introduced by Vassiliev. Certain weight systems can be derived from graph invariants. Another main source of weight systems are Lie algebras. In recent papers, the weight systems associated to Lie algebras ${\mathfrak gl}(N)$ were unified in a universal ${\mathfrak gl}$-weight system, which takes values in the ring of polynomials in infinitely many variables. The unification has been achieved by extending the ${\mathfrak gl}(N)$-weight systems from chord diagrams to arbitrary permutations. A natural question then arises, namely, which already known weight systems can be obtained from the universal ${\mathfrak gl}$ weight system. In addition to understanding the internal relationship between weight systems, knowing that a given weight system can be induced from the ${\mathfrak gl}$-weight system would immediately lead to extending the former to arbitrary permutations. To each chord diagram, one can associate a graph, called the intersection graph of the chord diagram. Certain weight systems are completely determined by the intersection graphs. In general, the relationship between Lie algebra weight systems and polynomial graph invariants looks rather complicated. Our main result in the present paper consists in showing that the well-known graph and delta-matroid invariant, the interlace polynomial, can be induced from the universal ${\mathfrak gl}$-weight system. We provide an explicit substitution making the ${\mathfrak gl}$-weight system into the interlace polynomial for chord diagrams and their intersection graphs.