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arXiv research

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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0111 · Dec 201219922001200920172026
9 results for K-complexes

We improve the bound on Kühnel's problem to determine the smallest nn such that the kk-skeleton of an nn-simplex Δn(k)Δ_n^{(k)} does not embed into a compact PL 2k2k-manifold MM by showing that if Δn(k)Δ_n^{(k)} embeds into MM, then n(2k+1)+(k+1)βk(M;Z2)n\leq (2k+1)+(k+1)β_k(M;\mathbb Z_2). As a consequence we obtain improved Radon and He…

2019-04-04abs ↗pdf ↗

RED detects sleep EEG events using deep neural networks, outperforming previous methods.

problem Manual detection of sleep EEG events is time-consuming and variable.
method Deep Recurrent Neural Networks (RNNs) with convolutional and recurrent components.
result RED outperforms state-of-the-art methods in sleep spindle and K-complex detection.

The paper proves embedding conditions for complexes in manifolds using matrix rank criteria.

problem Embedding kk-dimensional simplicial complexes into (k1)(k-1)-connected PL manifolds.
method Proves embedding conditions using a skew-symmetric matrix with low rank over Q\mathbb Q.
result Embedding conditions for kk-complexes in 2k2k-manifolds are equivalent to low-rank matrix conditions.

A simplified proof for embedding higher-dimensional complexes into manifolds.

problem Embedding higher-dimensional complexes into manifolds with constraints.
method A short and accessible proof for the Patak-Tancer theorem.
result A simplified proof for the Heawood inequality in higher dimensions.

In this article, we derive many properties of étale stacks in various contexts, and prove that étale stacks may be characterized categorically as those stacks that arise as prolongations of stacks on a site of spaces and local homeomorphisms. Moreover, we show that the bicategory of étale differentiable stacks and loca…

2012-12-11abs ↗pdf ↗

The abstract explores a new wave equation linking quantum mechanics and complex adaptive systems.

problem Understanding the underlying mechanism of distribution formation in complex quantum entanglement.
method Exploring the logical relationship between Schrödinger's wave equation and Shi's trading volume-price wave equation in finance.
result A non-localized wave equation in quantum mechanics reveals the invariance of interaction as a universal law.