Results 21 to 30 of about 20,364 (303)

Apply the contour integral on multivalued function from the complex plane

open access: yes, 2022
This paper mainly intends to integrate the multivalued function on the complex plane by using contour integral. The improper integral of a single-valued function on the real plane is often difficult to solve directly.
Li, Yutong, Li, Haoru, Tang, Muyu
core   +1 more source

Contour integration with corners

open access: yesVision Research, 2016
Contour integration refers to the ability of the visual system to bind disjoint local elements into coherent global shapes. In cluttered images containing randomly oriented elements a contour becomes salient when its elements are coaligned with a smooth global trajectory, as described by the Gestalt law of good continuation. Abrupt changes of curvature
Malte, Persike, Günter, Meinhardt
openaire   +2 more sources

Study of Euler’s Belt Formula

open access: yesTribology Online, 2017
Euler’s belt formula for a fixed circular drum is well known and is an important formula for mechanical engineers. However, there is little book in which belt equation for a drum of any contour is discussed precisely.
Keiji Imado, Takefumi Otsu
doaj   +1 more source

The heat equation on time scales [PDF]

open access: yesOpuscula Mathematica, 2023
We present the use of a Fourier transform on time scales to solve a dynamic heat IVP. This is done by inverting a certain exponential function via contour integral. We include some specific examples and directions for further study.
Tom Cuchta, Rui A.C. Ferreira
doaj   +1 more source

A Meshless Method Based on the Laplace Transform for the 2D Multi-Term Time Fractional Partial Integro-Differential Equation

open access: yesMathematics, 2020
In this article, we propose a localized transform based meshless method for approximating the solution of the 2D multi-term partial integro-differential equation involving the time fractional derivative in Caputo’s sense with a weakly singular kernel ...
Kamran Kamran   +3 more
doaj   +1 more source

A QUADRUPLE INTEGRAL INVOLVING THE EXPONENTIAL LOGARITHM OF QUOTIENT RADICALS IN TERMS OF THE HURWITZ-LERCH ZETA FUNCTION

open access: yesUral Mathematical Journal, 2022
With a possible connection to integrals used in General Relativity, we used our contour integral method  to write a closed form solution for a quadruple integral involving exponential functions and  logarithm of quotient radicals.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

Reconstructing vectorised photographic images [PDF]

open access: yes, 2009
We address the problem of representing captured images in the continuous mathematical space more usually associated with certain forms of drawn ('vector') images.
C.D. Taylor   +5 more
core   +1 more source

Optimality of Human Contour Integration

open access: yesPLoS Computational Biology, 2012
For processing and segmenting visual scenes, the brain is required to combine a multitude of features and sensory channels. It is neither known if these complex tasks involve optimal integration of information, nor according to which objectives computations might be performed. Here, we investigate if optimal inference can explain contour integration in
Udo A. Ernst   +5 more
openaire   +4 more sources

High-precision numerical estimates of the Mellin-Barnes integrals for the structure functions based on the stationary phase contour [PDF]

open access: yesEPJ Web of Conferences, 2019
We present a recipe for constructing the effcient contour which allows one to calculate with high accuracy the Mellin-Barnes integrals, in particular, for the F3 structure function written in terms of its Mellin moments.
Sidorov Alexander   +2 more
doaj   +1 more source

A novel proof of two partial fraction decompositions

open access: yesAdvances in Difference Equations, 2021
In this paper, by constructing contour integral and using Cauchy’s residue theorem, we provide a novel proof of Chu’s two partial fraction decompositions.
Jun-Ming Zhu, Qiu-Ming Luo
doaj   +1 more source

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