Results 21 to 30 of about 34,977 (256)
Impulsive Fractional Semilinear Integrodifferential Equations with Nonlocal Conditions
Journal of Function Spaces, 2021 This paper is devoted to a class of impulsive fractional semilinear integrodifferential equations with nonlocal initial conditions. Based on the semigroup theory and some fixed point theorems, the existence theory of PC-mild solutions is established ...
Xue Wang, Bo Zhu
doaj +1 more source
Existence of Positive Solutions for Second-Order Third-Point Semipositive BVP
Journal of Function Spaces, 2021 In this paper, we study the existence of positive solutions for the following nonlinear second-order third-point semi-positive BVP. We derive an explicit interval of positive parameters, which for any l,μ in this interval, the existence of positive ...
Hua Su, Jinmin Yu
doaj +1 more source
Discrete q-Exponential Limit Order Cancellation Time Distribution
Fractal and Fractional, 2023 Modeling financial markets based on empirical data poses challenges in selecting the most appropriate models. Despite the abundance of empirical data available, researchers often face difficulties in identifying the best fitting model.
Vygintas Gontis
doaj +1 more source
Supervised autoencoder MLP for financial time series forecasting
Journal of Big DataThis paper investigates the enhancement of financial time series forecasting with the use of neural networks through supervised autoencoders, aiming to improve investment strategy performance. It specifically examines the impact of noise augmentation and
Bartosz Bieganowski, Robert Ślepaczuk
doaj +1 more source
FEBS Letters, EarlyView.Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai +4 more
wiley +1 more source
Understanding stock market instability via graph auto-encoders
EPJ Data ScienceUnderstanding stock market instability is a key question in financial management as practitioners seek to forecast breakdowns in long-run asset co-movement patterns which expose portfolios to rapid and devastating collapses in value.
Dragos Gorduza +2 more
doaj +1 more source
A Jacobi-Collocation Method for Second Kind Volterra Integral Equations with a Smooth Kernel
Abstract and Applied Analysis, 2014 The purpose of this paper is to provide a Jacobi-collocation method for solving second kind Volterra integral equations with a smooth kernel. This method leads to a fully discrete integral operator.
Hongfeng Guo, Haotao Cai, Xin Zhang
doaj +1 more source
From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
Malliavin method for optimal investment in financial markets with memory
Open Mathematics, 2016 We consider a financial market with memory effects in which wealth processes are driven by mean-field stochastic Volterra equations. In this financial market, the classical dynamic programming method can not be used to study the optimal investment ...
An Qiguang, Zhao Guoqing, Zong Gaofeng
doaj +1 more source
Games, 2023 A multi-tournament environment is analyzed, focusing on the impact of organizer market structure on agent entry behavior. Two high ability agents first decide which tournament to enter (with fields then filled by low ability agents).
Timothy Mathews +2 more
doaj +1 more source