Results 1 to 10 of about 3,576,028 (266)

Research on online advertising attention evaluation decision based on the stability of delay differential equations and Hopf bifurcation analysis

open access: yesMathematical Biosciences and Engineering, 2021
This paper uses the stability of the delay differential equation to study its impact on online advertising, helps analyze Hopf branch characteristics in a big data environment, helps companies make online advertising decisions, and maximizes the benefits
Xinzhou Xie   +4 more
doaj   +1 more source

Investigation of the Application of Complex Function Theory in Underground Mine Design: A Case Study

open access: yesApplied Sciences, 2023
This study, with the engineering background of the design of a stope involving a sublevel mining method in a certain underground metal mine, explored the application of stress-solving methods based on the complex variable function theory in actual ...
Lihai Tan   +3 more
doaj   +1 more source

Numerical Simulation Analysis of Difference from a Radial Resistivity Testing Method for Cylindrical Cores and a Conventional Testing Method

open access: yesMathematics, 2022
Rock resistivity is a major geophysical technical parameter in geological and geotechnical engineering, geothermal prospecting, and oil and gas exploration.
Jiahuan He   +7 more
doaj   +1 more source

Analytical Solution of the Interference between Elliptical Inclusion and Screw Dislocation in One-Dimensional Hexagonal Piezoelectric Quasicrystal

open access: yesCrystals, 2023
This study examines the interference problem between screw dislocation and elliptical inclusion in one-dimensional hexagonal piezoelectric quasicrystals.
Zhiguo Zhang, Xing Li, Shenghu Ding
doaj   +1 more source

The Possibility Using the Power Production Function of Complex Variable for Economic Forecasting [PDF]

open access: yesЭкономика региона, 2016
The possibility of dynamic analysis and forecasting production results using the power production functions of complex variables with real coefficients is considered.
Sergey Gennadyevich Svetunkov
doaj   +1 more source

Kannan Nonexpansive Mappings on Variable Exponent Function Space of Complex Variables with Some Applications

open access: yesJournal of Function Spaces, 2022
This paper establishes the reality of a fixed point of Kannan’s prequasinorm contraction mapping on the variable exponent function space of complex variables, demonstrating that it satisfies the property (R) and possesses a prequasinormal structure.
Elsayed A. E. Mohamed, Awad A. Bakery
doaj   +1 more source

Analysis of Elastic–Plastic Problems Using the Improved Interpolating Complex Variable Element Free Galerkin Method

open access: yesMathematics, 2021
A numerical model for the two-dimensional nonlinear elastic–plastic problem is proposed based on the improved interpolating complex variable element free Galerkin (IICVEFG) method and the incremental tangent stiffness matrix method.
Yajie Deng   +3 more
doaj   +1 more source

Extreme problem for a mosaic system of points on the open sets and nonoverlapping domains

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2023
In the geometric theory of functions of a complex variable, the well-known direction is relatedIn the geometric theory of functions of a complex variable, the well-known direction is related to the estimates of the products of the inner radii of pairwise
Andriy Leonidovych Targonskiy
doaj   +1 more source

The Griffith Crack and the Interaction between Screw Dislocation and Semi-Infinite Crack in Cubic Quasicrystal Piezoelectric Materials

open access: yesCrystals, 2022
The Griffith crack problem and the interaction between screw dislocation and semi-infinite crack in cubic quasicrystal piezoelectric materials are studied by using the complex variable function method.
Jiandong Pi, Lianhe Li
doaj   +1 more source

A criterion for topological equivalence of two variable complex analytic function germs [PDF]

open access: yes, 2008
We show that two analytic function germs $(\C^2,0) \to (\C,0)$ are topologically right equivalent if and only if there is a one-to-one correspondence between the irreducible components of their zero sets that preserves the multiplicites of these ...
Parusinski, Adam
core   +3 more sources

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