This paper studies Jones-Wenzl idempotents in the twisted I-bundle over the Möbius band.
problem Understanding Jones-Wenzl idempotents in the Kauffman bracket skein module of the twisted I-bundle over the Möbius band.
method Analyzing the trace of Jones-Wenzl idempotents in the Kauffman bracket skein module of the twisted I-bundle over the Möbius band.
result Uncovering analog properties of Jones-Wenzl idempotents in the Kauffman bracket skein module of the twisted I-bundle over the Möbius band that differ from the annulus case.
Let p an integer. We define a family of idempotents (and nilpotents) in the Temperley - Lieb algebras at 4p-th roots of unity which generalize the usual Jones-Wenzl idempotents. These new idempotents correspond to finite dimentional simple and projective indecomposable representations of the restricted quantum group Uq…
Generalizes Kauffman-Vogel polynomials to oriented and unoriented 4-valent graphs.
problem Polynomial invariants of 4-valent rigid vertex graphs.
method Using A2 bracket and A2 clasps to generalize the one-variable Kauffman-Vogel polynomial. result New polynomial invariants for oriented and unoriented 4-valent graphs.
We use the Jones-Wenzl idempotents to construct a basis of Temperley-Lieb algebra TL_n. This allows a short calculation for a Gram determinant of Lickorish's bilinear form on the Temperley-Lieb algebra.
The Jones-Wenzl projectors play a central role in quantum topology, underlying the construction of SU(2) topological quantum field theories and quantum spin networks. We construct chain complexes whose graded Euler characteristic is the "classical" projector in the Temperley-Lieb algebra. We show that they are homotopy…
We show that the Kauffman bracket skein module of a cylinder over the torus embeds as a subalgebra of the noncommutative torus. Using this we derive nice formulas for the Jones-Wenzl idempotents and analyze the structure of the Kauffman bracket skein module of the unknot as a module over the Kauffman bracket skein modu…
Categorifies weight-preserving maps in sl(2) representations.
problem Categorifying weight-preserving linear maps between sl(2) representations.
method Introduces a quotient of the affine Temperley-Lieb category and studies diagrammatic idempotents.
result Categorifies the Kauffman bracket skein algebra of the annulus and Chebyshev polynomials of the first kind.
A sequence of Temperley-Lieb algebra elements corresponding to torus braids with growing twisting numbers converges to the Jones-Wenzl projector. We show that a sequence of categorification complexes of these braids also has a limit which may serve as a categorification of the Jones-Wenzl projector.
We generalize categorified Jones-Wenzl projectors in odd Khovanov homology.
problem Categorify Jones-Wenzl projectors for odd Khovanov homology.
method Develop grading multicategories to replace grading categories, proving existence and uniqueness of categorified projectors.
result Existence and uniqueness of categorified Jones-Wenzl projectors in odd Khovanov homology.
Jones-Wenzl projectors lifted to Khovanov spectra, proving knot conjectures.
problem Understanding Jones-Wenzl projectors in Khovanov spectra.
method Constructing and studying lifted projectors via maps and polynomial actions.
result Complete computation of 3-colored Khovanov spectrum of the unknot, proving conjectures.
Simplified proofs for splitting homotopy idempotents.
problem Understanding the splitting of homotopy idempotents.
method Simplified proofs for both pointed and unpointed cases.
result Homotopy idempotents split in specific categories.
The paper explores idempotents in quandle rings and their connections to quandle coverings.
problem Understanding idempotents in quandle rings and their relation to quandle coverings.
method Investigation of idempotents in quandle rings, proving properties of idempotents in free products and unions of quandles.
result Integral quandle rings of quandles of finite type that are non-trivial coverings over nice base quandles admit infinitely many non-trivial idempotents.
We explicitly describe a relationship between the Lie theoretic and topological categorification of the Jones-Wenzl projector The two categorifications appear in arXiv:1007.4680 and arXiv:1005.5117 respectively.
Study when idempotent barycenter map results in trivial bundle.
problem When does idempotent barycenter map yield a trivial bundle?
method Investigates idempotent barycenter map restricted to points with no-trivial fibers.
result Reveals conditions for the map to result in a trivial bundle.
Preprint proves quantum coideal Schur-Weyl duality and generalizes Jones-Wenzl projectors.
problem Quantum coideal Schur-Weyl duality and Jones-Wenzl projectors in type B/D.
method Combinatorial proofs and functional analytic arguments.
result Explicit proof of quantum coideal Schur-Weyl duality and generalization of Jones-Wenzl projectors.
Categorifies Hecke algebra subalgebra using sheaves and bimodules.
problem Categorify maximal commutative subalgebra of type A Hecke algebra.
method Construct monoidal functor from coherent sheaves on flag Hilbert scheme to Soergel bimodules, match Hochschild homology with sheaf Euler characteristics.
result Categorified projectors correspond to dg algebras of functions on affine charts of flag Hilbert schemes, conjecturally matching homology of glN projectors. Infinite braids' categorification proven using Khovanov homology.
problem Categorifying Jones-Wenzl projectors for infinite braids.
method Limiting Khovanov chain complex and homotopy types.
result Jones-Wenzl projectors categorified for infinite braids.
New link colorings using quandle rings and idempotents are stronger than existing methods.
problem Improving the quandle coloring invariant of links.
method Using quandle rings and their idempotents to enhance the quandle coloring invariant.
result The new invariants are stronger than the $\Hom$ quandle invariant for certain coloring quandles.
Paper shows idempotents in tangle categories split naturally.
problem Understanding structure of tangle categories.
method 3-manifold techniques to analyze tangle categories.
result Every idempotent morphism splits naturally.
Introduction 1. The two-eigenvalue problem 2. Hecke algebra representations of braid groups 3. Duality of Jones-Wenzl representations 4. Closed images of Jones-Wenzl sectors 5. Distribution of evaluations of Jones polynomials 6. Fibonacci representations
New identities link Frobenius elements to Jones-Wenzl projectors at roots of unity.
problem Understanding relationships between Frobenius elements and Jones-Wenzl projectors at roots of unity.
method Obtained skein identities relating Frobenius elements to Jones-Wenzl projectors in the Kauffman bracket skein module.
result Skein identities provide new proofs of the existence of the Chebyshev-Frobenius homomorphism.
Projectors defined in virtual Temperley-Lieb algebra with properties similar to Jones-Wenzl projectors.
problem Defining projectors in the virtual Temperley-Lieb algebra.
method Generalizing Jones-Wenzl projectors and defining new projectors with specific properties.
result Uniqueness of the projector fn and explicit formula for fn. The paper explores zero-divisors and idempotents in quandle rings, proving their absence in certain cases.
problem Understanding zero-divisors and idempotents in quandle rings.
method Development of quandle rings theory, definition of orderability, computation of idempotents, and analysis of automorphism groups.
result Quandle rings of left or right orderable quandles with semi-latin structure have no zero-divisors.
The paper classifies self-replicating 3D shapes using algebraic models.
problem Understanding self-replicating 3D shapes.
method Using idempotents in the (2+1)-cobordism category to classify 3-manifolds.
result A classification theorem for self-replicating 3-manifolds.
Study infinitesimal properties of idempotent sets in Banach algebras.
problem Investigate infinitesimal aspects of idempotent sets in Banach algebras.
method Introduce and study Stiefel bundles on flag manifolds, using connections on infinite-dimensional bundles.
result Developed new connections on infinite-dimensional bundles.
Formulates a new connection between topological and geometric categories.
problem No specific problem stated; focuses on category formulation.
method Formulates a connection between a topological and geometric category.
result Provides a more precise and improved version of a previous proposal.
We define and study the category of symmetric sl2-webs. This category is a combinatorial description of the category of all finite dimensional quantum sl2-modules. Explicitly, we show that (the additive closure of) the symmetric sl2-spider is (braided monoidally) equivalent to …
In this paper we study vector fields on the big phase space of Gromov-Witten theory which are idempotents of the quantum product. Such vector fields can be used to simplify universal equations for higher genus Gromov-Witten invariants.
We found a way to code meanders and show they are idempotent.
problem Understanding and coding meandric permutations.
method We established a bijection between meanders and Gauss diagrams, and used this to construct matrices that are idempotent.
result Meandric permutations are idempotent over the field GF(2).
New method uses quandle rings to distinguish knots and their mirrors.
problem Distinguishing knots and their mirror images.
method Combining idempotents in quandle rings with state sum invariants.
result Improved knot and mirror image distinction using fewer quandles.
The Bass trace conjectures are placed in the setting of homotopy idempotent selfmaps of manifolds. For the strong conjecture, this is achieved via a formulation of Geoghegan. The weaker form of the conjecture is reformulated as a comparison of ordinary and L^2-Lefschetz numbers.
New integrable systems are created using matrix operations and Lie algebra elements.
problem Generating coupled nonlinear integrable systems from zero curvature equation.
method Constructing Maurer-Cartan forms using Kronecker product and specific matrices (nilpotent, Hadamard, idempotent, k-idempotent).
result Found a closure property among chosen matrices crucial for coupling and nonlinearity.
Authors conjecture categorically diagonalizable complex for full twists.
problem Categorically diagonalizing the complex of Soergel bimodules for full twists.
method Utilizes categorical diagonalization theory.
result Proves conjecture in type A, categorifies Young idempotents.
We use a skein-theoretic version of the Hecke algebras of type A to present three-dimensional diagrammatic views of Gyoja's idempotent elements, based closely on the corresponding Young diagram. In this context we give straightforward calculations for the eigenvalues of two natural central elements in the Hecke algebra…
We construct complexes P1n of Soergel bimodules which categorify the Young idempotents corresponding to one-column partitions. A beautiful recent conjecture of Gorsky-Rasmussen relates the Hochschild homology of categorified Young idempotents with the flag Hilbert scheme. We prove this conjecture for P1n an…
Analytic structure found on manifold of idempotent operators.
problem Analyzing structure of idempotent operators in Banach spaces.
method Locally trivial analytic affine-Banach bundle over Grassmann manifold.
result Bi-analytic bijection between tangent bundle and idempotent manifold.
In this paper we study regular irreducible algebraic monoids over $\fldc$ equipped with the euclidean topology. It is shown that, in such monoids, the Green classes and the spaces of idempotents in the Green classes all have natural manifold structures. The interactions of these manifold structures and the semigroup st…
New homology theory for semi-groups with specific properties.
problem Developing a homology theory for semi-groups with self-distributivity or idempotency.
method Constructing a new homology theory and comparing it with existing theories.
result Comparison and connections with rack homology and knot theory.
We introduce a graphical calculus for computing morphism spaces between the categorified spin networks of Cooper and Krushkal. The calculus, phrased in terms of planar compositions of categorified Jones-Wenzl projectors and their duals, is then used to study the module structure of spin networks over the colored unknot…
The Hecke algebra H_n contains well known idempotents E_λ which are indexed by Young diagrams with n cells. They were originally described by Gyoja. A skein theoretical description of E_λ was given by Aiston and Morton. The closure of E_λ becomes an element Q_λ of the skein of the annulus. In this skein, they are known…
We study the representation theory of the smallest quantum group and its categorification. The first part of the paper contains an easy visualization of the 3j-symbols in terms of weighted signed line arrangements in a fixed triangle and new binomial expressions for the 3j-symbols. All these formulas are realized as gr…
Unified theories for colored sl(2) knot homology.
problem Equivalence of different models for colored sl(2) knot homology.
method Conceptualized properties into a Chebyshev system and proved its uniqueness.
result Equivalence of Khovanov and Cooper-Krushkal models for the unknot.
We propose a means by which some categorifications can be evaluated at a root of unity. This is implemented using a suitable localization in the context of prior work by the authors on categorification of the Jones-Wenzl projectors. Within this construction we define objects, invariant under handle slides, which decate…
In this paper, we define the eta cochain form and prove its regularity when the kernel of a family of Dirac operators is a vector bundle. We decompose the eta form as a pairing of the eta cochain form with the Chern character of an idempotent matrix and we also decompose the Chern character of the index bundle for a fi…
Categorifies Jones polynomial using Lie theory.
problem Categorifying the coloured Jones polynomial.
method Lie theoretic categorification with Jones-Wenzl projectors.
result Constructs a categorification of the coloured Jones polynomial.
Geometric interpretation of tangle invariants using immersed curves.
problem Understanding tangle invariants in Khovanov homology.
method Geometric interpretation of Bar-Natan's invariant using immersed curves.
result Recovery of Khovanov homology from immersed curves.
We describe a general method to construct completely bounded idempotent mappings on operator spaces, starting from amenable semigroups of completely bounded mappings. We then explore several applications of that method to injective operator spaces, fixed points of completely contractive mappings, Toeplitz operators, dy…
The stable Khovanov-Rozansky homology of torus knots has been conjecturally described as the Koszul homology of an explicit non-regular sequence of polynomials. We verify this conjecture against newly available computational data for sl(3)-homology. Special attention is paid to torsion. In addition, explicit conjectura…