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12243547 · May 202619922001200920172026
48 results for trace decategorification

Decategorifies higher actions in Heegaard Floer homology.

problem Understanding higher actions in Heegaard Floer homology.
method Decategorification of bordered Heegaard Floer strands algebras and identification with actions on exterior powers of homology groups.
result Identifies decategorifications with certain actions on exterior powers of homology groups of surfaces.

In two previous papers, the author showed how to decompose the Khovanov homology of a link L\mathcal{L} into the algebraic pairing of a type D structure and a type A structure (as defined in bordered Floer homology), whenever a diagram for L\mathcal{L} is decomposed into the union of two tangles. Since Khovanov homol…

2014-01-21abs ↗pdf ↗

We relate decategorifications of Ozsváth-Szabó's new bordered theory for knot Floer homology to representations of Uq(gl(11))\mathcal{U}_q(\mathfrak{gl}(1|1)). Specifically, we consider two subalgebras Cr(n,S)\mathcal{C}_r(n,\mathcal{S}) and Cl(n,S)\mathcal{C}_l(n,\mathcal{S}) of Ozsváth- Szabó's algebra B(n,S)\mathcal{B}(n,\mathcal{S}), an…

2016-11-23abs ↗pdf ↗

We introduce an sl(n) homology theory for knots and links in the thickened annulus. To do so, we first give a fresh perspective on sutured annular Khovanov homology, showing that its definition follows naturally from trace decategorifications of enhanced sl(2) foams and categorified quantum gl(m), via classical skew Ho…

2015-06-26abs ↗pdf ↗

We give a simple, combinatorial construction of a unital, spherical, non-degenerate \ast-planar algebra over the ring Z[q1/2,q1/2]\mathbb{Z}[q^{1/2},q^{-1/2}]. This planar algebra is similar in spirit to the Temperley-Lieb planar algebra, but computations show that they are different. The construction comes from the combinator…

2014-01-21abs ↗pdf ↗

Define quiver representation-valued invariants for classical and virtual knots

problem Define quiver representation-valued invariants for classical and virtual knots
method Define an infinite family of quiver representation-valued invariants of classical and virtual knots associated to a choice of data vector consisting of a biquandle, abelian group, set of biquandle arrows weights with values in the abelian group, coefficient ring and set of biquandle endomorphisms.
result Extract four new polynomial invariants as decategorifications

We define a homology HN\mathcal{H}_N for closed braids by applying Khovanov and Rozansky's matrix factorization construction with potential axN+1ax^{N+1}. Up to a grading shift, H0\mathcal{H}_0 is the HOMFLYPT homology defined in arXiv:math/0505056. We demonstrate that, for N1N \geq 1, HN\mathcal{H}_N is a $\mathbb{Z}_2\o…

2013-08-14abs ↗pdf ↗

Bordered Heegaard Floer homology is an invariant for 3-manifolds, which associates to a surface F an algebra A(Z), and to a 3-manifold Y with boundary, together with an orientation-preserving diffeomorphism φfrom F to \bdy Y, a module over A(Z). We study the Grothendieck group of modules over A(Z), and define an invari…

2012-12-18abs ↗pdf ↗

Khovanov and Rozansky's categorification of the HOMFLY-PT polynomial is invariant under braidlike isotopies for any link diagram and Markov moves for braid closures. To define HOMFLY-PT homology, they required a link to be presented as a braid closure, because they did not prove invariance under the other oriented Reid…

2016-07-01abs ↗pdf ↗

We reconsider the su(3) link homology theory defined by Khovanov in math.QA/0304375 and generalized by Mackaay and Vaz in math.GT/0603307. With some slight modifications, we describe the theory as a map from the planar algebra of tangles to a planar algebra of (complexes of) `cobordisms with seams' (actually, a `canopo…

2006-12-26abs ↗pdf ↗

Derives Selberg trace formula on Riemann surfaces and generalizes to other spaces.

problem Deriving and generalizing the Selberg trace formula.
method Supersymmetric localization principle and path integral derivation.
result Derives Selberg trace formula on arbitrary compact Riemann surfaces and generic compact locally symmetric spaces.

CausalSim corrects bias in trace-driven simulations for more accurate results.

problem Bias in trace-driven simulations due to system conditions during trace collection.
method CausalSim learns a causal model of system dynamics and latent factors from an RCT to remove bias from trace data.
result CausalSim reduces simulation errors by 53% and 61% compared to baselines, providing more accurate insights.

This paper investigates the strength of the trace field as a commensurability invariant of hyperbolic 3-manifolds. We construct an infinite family of two-component hyperbolic link complements which are pairwise incommensurable and have the same trace field, and infinitely many 1-cusped finite volume hyperbolic 3-manifo…

2007-08-08abs ↗pdf ↗

Clarifies a trace for Heisenberg operators on contact manifolds.

problem Calculating the index of Heisenberg elliptic operators on contact manifolds.
method Introduced a new trace on Heisenberg pseudodifferential operators and constructed a cocycle in periodic cyclic cohomology.
result Simplified the construction of the trace on Heisenberg pseudodifferential operators.

Researchers compute trace formula for magnetic Laplacian on hyperbolic surfaces.

problem Analyzing the magnetic Laplacian on compact hyperbolic surfaces.
method Computed the trace formula for magnetic Laplacian energies above the Mane critical level.
result Asymptotic behavior of trace formula coefficients near the Mane critical level.

Introduces expected eligibility traces for more efficient credit assignment in reinforcement learning.

problem Efficiently assigning credit to states and actions in reinforcement learning.
method Introduces expected eligibility traces, allowing updates to counterfactual sequences.
result Substantial improvements in temporal-difference learning can be achieved with expected traces.

We define a torsion invariant T for every balanced sutured manifold (M,g), and show that it agrees with the Euler characteristic of sutured Floer homology SFH. The invariant T is easily computed using Fox calculus. With the help of T, we prove that if (M,g) is complementary to a Seifert surface of an alternating knot, …

2009-03-30abs ↗pdf ↗

We study new invariants of elliptic partial differential operators acting on sections of a vector bundle over a closed Riemannian manifold that we call the relativistic heat trace and the quantum heat traces. We obtain some reduction formulas expressing these new invariants in terms of some integral transforms of the u…

2016-11-11abs ↗pdf ↗

New hyperbolic manifolds found with same trace ring.

problem Finding non-commensurable hyperbolic manifolds with identical trace rings.
method Proved existence of infinitely many non-commensurable manifolds with same ambient group and trace ring.
result Infinitely many non-commensurable hyperbolic manifolds with the same ambient group and trace ring.

Sub-Riemannian Selberg trace formulae for compact quotients of SL(2, R)

problem Computing zeta-regularized determinants of sub-Laplacians
method Using Fourier decomposition and Selberg trace formulae
result Compact determinant formula expressed in terms of base hyperbolic surface and relative Selberg product

Proposes GTTN for discovering all low-rank structures in deep multi-task learning.

problem Discovering all low-rank structures among tasks in deep multi-task models.
method Introduces GTTN, a convex combination of matrix trace norms of all tensor flattenings, to automatically determine the importance of components.
result Demonstrates the effectiveness of GTTN on real-world datasets.

A novel method for parallel transport and geodesics on submanifolds.

problem Understanding parallel transport and geodesics on submanifolds.
method Rolling tangent space to visualize and analyze parallel transport and geodesics.
result Conditions for parallel transport and geodesics are simplified and visualized in the tangent space.