Articles with "quantization" as a keyword



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The effect of quantization at different resolutions on the classification of lesion texture in dermoscopic images using support vector machine

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Published in 2022 at "International Journal of Imaging Systems and Technology"

DOI: 10.1002/ima.22759

Abstract: Dermoscopic images have been recently used for automated diagnosis of skin lesions with successful results and a potential for widescale applications. Cooccurrence matrix (COM) is a statistical method of texture feature extraction that remains possibly… read more here.

Keywords: classification; dermoscopic images; quantization; texture ... See more keywords
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Stabilization of switched nonlinear systems with dynamic output quantization and disturbances

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Published in 2020 at "International Journal of Robust and Nonlinear Control"

DOI: 10.1002/rnc.4847

Abstract: This paper studies the problem of quantized output feedback stabilization for a disturbed discrete‐time switched system. With the quantized output measurement, an extended state current estimator is constructed to estimate the state and disturbance. In… read more here.

Keywords: stabilization switched; nonlinear systems; quantization; switched nonlinear ... See more keywords
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Unitary quantization of a scalar charged field and Schwinger effect

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Published in 2020 at "Journal of High Energy Physics"

DOI: 10.1007/jhep04(2020)120

Abstract: Quantum field theory in curved spacetimes suffers in general from an infinite ambiguity in the choice of Fock representation and associated vacuum. In cosmological backgrounds, the requirement of a unitary implementation of the field dynamics… read more here.

Keywords: scalar charged; field; quantization scalar; quantization ... See more keywords
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Partition functions of Chern-Simons theory on handlebodies by radial quantization

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep07(2021)194

Abstract: Abstract We use radial quantization to compute Chern-Simons partition functions on handlebodies of arbitrary genus. The partition function is given by a particular transition amplitude between two states which are defined on the Riemann surfaces… read more here.

Keywords: partition; chern simons; partition functions; quantization ... See more keywords
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Commutativity of quantization and reduction for quiver representations

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Published in 2022 at "Mathematische Zeitschrift"

DOI: 10.1007/s00209-022-03028-1

Abstract: Given a finite quiver, its double may be viewed as its non-commutative “cotangent” space, and hence is a non-commutative symplectic space. Crawley-Boevey, Etingof and Ginzburg constructed the non-commutative reduction of this space while Schedler constructed… read more here.

Keywords: quantization; non commutative; commutativity quantization; quantization reduction ... See more keywords

The Simanca metric admits a regular quantization

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Published in 2019 at "Annals of Global Analysis and Geometry"

DOI: 10.1007/s10455-019-09680-x

Abstract: Let $g_S$ be the Simanca metric on the blow-up $\tilde{\mathbb{C}}^2$ of $\mathbb{C}^2$ at the origin. We show that $(\tilde{\mathbb{C}}^2,g_S)$ admits a regular quantization. We use this fact to prove that all coefficients in the Tian-Yau-Zelditch… read more here.

Keywords: admits regular; simanca metric; quantization; regular quantization ... See more keywords
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Velocity deception jamming discrimination using quantization effect

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Published in 2019 at "Analog Integrated Circuits and Signal Processing"

DOI: 10.1007/s10470-019-01447-5

Abstract: In this letter, the effects of number of quantization levels are studied in the airborne digital radio frequency memory (DRFM). The artificial signal, produced by DRFM, has quantized amplitude that results in different cross-correlations (with… read more here.

Keywords: jamming discrimination; deception jamming; velocity deception; quantization ... See more keywords
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The Angular Momentum Dilemma and Born–Jordan Quantization

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Published in 2017 at "Foundations of Physics"

DOI: 10.1007/s10701-016-0041-8

Abstract: The rigorous equivalence of the Schrödinger and Heisenberg pictures requires that one uses Born–Jordan quantization in place of Weyl quantization. We confirm this by showing that the much discussed “ angular momentum dilemma” disappears if… read more here.

Keywords: born jordan; jordan quantization; angular momentum; quantization ... See more keywords
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Entropy Quantization of Reissner-Nordström Black Hole

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Published in 2021 at "International Journal of Theoretical Physics"

DOI: 10.1007/s10773-021-04798-w

Abstract: The Hawking temperature and Entropy of Reissner-Nordstrom (RN) black hole can be derived from energy quantization of the test particle moving around different circular orbits which is analog to the Bohr’s atomic model. Energy transitions… read more here.

Keywords: entropy quantization; black hole; reissner; quantization ... See more keywords
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Algebraic field theory operads and linear quantization

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Published in 2019 at "Letters in Mathematical Physics"

DOI: 10.1007/s11005-019-01195-7

Abstract: We generalize the operadic approach to algebraic quantum field theory [arXiv:1709.08657] to a broader class of field theories whose observables on a spacetime are algebras over any single-colored operad. A novel feature of our framework… read more here.

Keywords: field; linear quantization; quantization; field theory ... See more keywords
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Product Markovian Quantization of a Diffusion Process with Applications to Finance

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Published in 2018 at "Methodology and Computing in Applied Probability"

DOI: 10.1007/s11009-018-9652-1

Abstract: We introduce a new methodology for the quantization of the Euler scheme for a d-dimensional diffusion process. This method is based on a Markovian and componentwise product quantization and allows us, from a numerical point… read more here.

Keywords: methodology; diffusion process; quantization; finance ... See more keywords