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A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,742 papers · 148 categories

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24 results for T-bar T-deformation

The paper simulates Lévy processes and their extremum and hitting time.

problem Simulating Lévy processes and their extremum and hitting time accurately and efficiently.
method Using characteristic functions and conditional characteristic functions, with conformal deformations and precalculated values on multi-grids.
result Accurate and fast simulation of Lévy processes and their extremum and hitting time.

The paper connects knot homology, quantum 6j-symbols, and complements of knots.

problem Investigating the relationship between knot homology, quantum 6j-symbols, and knot complements.
method Developed a grading rule for HOMFLY-PT and Kauffman homology, found relationships between A-polynomials, and conjectured closed-form expressions for quantum 6j-symbols and knot complements.
result Closed-form expressions for SO(N) quantum 6j-symbols and conjectured expressions for (a,t)-deformed F_K for knot complements.

Adversarial domain adaptation reduces sample bias in high energy physics classifier.

problem Sample bias in high energy physics classifier training.
method Adversarial domain adaptation using neural networks with gradient reversal layer.
result Successful bias removal on simulated events at the LHC.

The paper connects quivers to knot complements and studies their BPS states and 3d N=2 theories.

problem Understanding the relationship between quivers and knot complements.
method Assigning quivers to knot complements and exploring their physical interpretation.
result Proposed a physical interpretation of quivers in terms of BPS states and 3d N=2 theories.

Reshetikhin-Turaev (a.k.a. Chern-Simons) TQFT is a functor that associates vector spaces to two-dimensional genus g surfaces and linear operators to automorphisms of surfaces. The purpose of this paper is to demonstrate that there exists a Macdonald q,t-deformation -- refinement -- of these operators that preserves the…

2015-04-10abs ↗pdf ↗

Somewhat unexpectedly, the study of the family of twisted knots revealed a hidden structure behind exclusive Racah matrices Sˉ\bar S, which control non-associativity of the representation product in a peculiar channel RRˉRRR\otimes \bar R \otimes R \longrightarrow R. These Sˉ\bar S are simultaneously symmetric and orthogo…

2019-06-24abs ↗pdf ↗

The paper studies holomorphic Poisson manifolds and their deformations under specific cohomology conditions.

problem Understanding deformations of holomorphic Poisson manifolds under certain cohomological assumptions.
method Investigates properties of Koszul-Brylinski homology and Dolbeault cohomology, proving formality of a DGLA.
result The DGLA is shown to be formal, and Maurer-Cartan elements induce complex structure deformations.

Simplified KR polynomial for bipartite links reduces to tensor products of vector spaces.

problem Complexity reduction of Khovanov-Rozansky polynomial for bipartite links.
method Local reduction of matrix factorizations to planar cycles and simplification to vector spaces.
result KR polynomial for bipartite links simplifies to tensor products of vector spaces.

We conjecture explicit evolution formulas for Khovanov polynomials for pretzel knots in some regions in the windings space. Our description is exhaustive for genera 1 and 2. As previously observed, evolution at T != -1 is not fully smooth: it switches abruptly at the boundaries between different regions. We reveal that…

2019-04-23abs ↗pdf ↗

We review a construction of a new class of algebraic curves, called super-A-polynomials, and their quantum generalizations. The super-A-polynomial is a two-parameter deformation of the A-polynomial known from knot theory or Chern-Simons theory with SL(2,C) gauge group. The two parameters of the super-A-polynomial encod…

2013-03-15abs ↗pdf ↗

The generalized volume conjecture relates asymptotic behavior of the colored Jones polynomials to objects naturally defined on an algebraic curve, the zero locus of the A-polynomial A(x,y)A(x,y). Another "family version" of the volume conjecture depends on a quantization parameter, usually denoted qq or \hbar; this quan…

2012-03-09abs ↗pdf ↗

The paper generalizes knot invariants and their connections to quivers and ideals.

problem Understanding knot complements and their invariants.
method Generalizing FKF_K invariants, knots-quivers correspondence, and AA-polynomials; associating FKF_K to branch of AA-polynomial; quiver generating series; RR-matrices; quantum aa-deformed AA-polynomial; 3d-5d theory.
result Explicit expressions for FKF_K invariants and their quiver representations for several simple knots.

We introduce and compute a 2-parameter family deformation of the A-polynomial that encodes the color dependence of the superpolynomial and that, in suitable limits, reduces to various deformations of the A-polynomial studied in the literature. These special limits include the t-deformation which leads to the "refined A…

2012-05-07abs ↗pdf ↗

Suppose MM is a complete n-dimensional manifold, n2n\ge 2, with a metric gˉij(x,t)\bar{g}_{ij}(x,t) that evolves by the Ricci flow tgˉij=2Rˉij\partial_t \bar{g}_{ij}=-2\bar{R}_{ij} in M×(0,T)M\times (0,T). For any 0<p<10<p<1, (p0,t0)M×(0,T)(p_0,t_0)\in M\times (0,T), qMq\in M, we define the $\Cal{L}_p$-length between p0p_0 and qq, $\Cal{L}_p$-geodesic,…

2006-08-08abs ↗pdf ↗

Improved rates for continual learning using SGD and last-iterate analysis.

problem Forgetting in overparameterized models after fitting multiple tasks.
method Developed novel SGD upper bounds for continual linear models and analyzed their performance.
result Established universal forgetting rates for continual learning.

Derives integral representations for a Lévy process and its extremum, hitting time, with fast evaluation.

problem Efficiently evaluating the joint probability density function of a Lévy process, its supremum, and hitting time.
method Integral representations, Laplace-Fourier transforms, summation by parts, conformal deformation, trapezoid rules, Gaver-Wynn-Rho algorithm.
result Explicit calculations and fast evaluation of the joint cpdf for Lévy processes.