Results 51 to 60 of about 238,666 (228)

Linear Sturm-Liouville problems with Riemann-Stieltjes integral boundary conditions [PDF]

open access: yesOpuscula Mathematica, 2018
We study second-order linear Sturm-Liouville problems involving general homogeneous linear Riemann-Stieltjes integral boundary conditions. Conditions are obtained for the existence of a sequence of positive eigenvalues with consecutive zero counts of the
Qingkai Kong, Thomas E. St. George
doaj   +1 more source

Integrable hydrodynamic chains [PDF]

open access: yes, 2003
A new approach for derivation of Benney-like momentum chains and integrable hydrodynamic type systems is presented. New integrable hydrodynamic chains are constructed, all their reductions are described and integrated. New (2+1) integrable hydrodynamic type systems are found.
arxiv   +1 more source

Fractional Calculus for Non-Discrete Signed Measures

open access: yesMathematics
In this paper, we suggest a first-ever construction of fractional integral and differential operators based on signed measures including a vector-valued case. The study focuses on constructing the fractional power of the Riemann–Stieltjes integral with a
Vassili N. Kolokoltsov   +1 more
doaj   +1 more source

Riemann-Stieltjes integration in Riesz spaces [PDF]

open access: yesRendiconti di Matematica e delle Sue Applicazioni, 1996
After introducing an integral for Riesz-space valued integral functions, this concept is used to represent the variation of a continuous function, to define integrals along a curve and Riemann-Stieltjes integrals, and to deduce from them, as particular
D. CANDELORO
doaj  

Unified Approach to the Existence of Solutions for a Coupled System of Fractional Differential-Integral Equations with Infinite Points and Riemann–Stieltjes Integral Boundary Conditions

open access: yesJournal of mathematics, 2022
In this article, by using the Schauder fixed point theorem, we first study the existence of solutions for a new coupled system of Caputo fractional differential equations with multipoint boundary value conditions under the assumption that the nonlinear ...
Ying Chen, Lishan Liu, Fangyan Wang
semanticscholar   +1 more source

Rough PDEs for Local Stochastic Volatility Models

open access: yesMathematical Finance, EarlyView.
ABSTRACT In this work, we introduce a novel pricing methodology in general, possibly non‐Markovian local stochastic volatility (LSV) models. We observe that by conditioning the LSV dynamics on the Brownian motion that drives the volatility, one obtains a time‐inhomogeneous Markov process. Using tools from rough path theory, we describe how to precisely
Peter Bank   +3 more
wiley   +1 more source

Existence of Positive Solution for Semipositone Fractional Differential Equations Involving Riemann-Stieltjes Integral Conditions

open access: yesAbstract and Applied Analysis, 2012
The existence of at least one positive solution is established for a class of semipositone fractional differential equations with Riemann-Stieltjes integral boundary condition. The technical approach is mainly based on the fixed-point theory in a cone.
Wei Wang, Li Huang
doaj   +1 more source

Weak solutions for the coupled system of Riemann-Stieltjes integral equations

open access: yesالمجلة الليبية العالمية
We present an existence theorem for at least one weak solution for a coupled system of  Riemann-Stieltjes integral equations in a reflexive Banach space . As an application, we study the existence of weak solutions  for the coupled system of Hammerstien-
Masouda M. A. Al-Fadel
semanticscholar   +1 more source

A Stratonovich integral for anticipating processes

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 7, Page 7695-7705, 15 May 2025.
A stochastic integral for anticipating integrands was introduced by Ayed and Kuo in 2008. Riemann–Stieltjes sums were considered, where the adapted part of the integrand was evaluated at the left endpoints of the subintervals, while the instantly independent part was evaluated at the right endpoints.
Marc Jornet
wiley   +1 more source

Non-Instantaneous Impulsive Boundary Value Problems Containing Caputo Fractional Derivative of a Function with Respect to Another Function and Riemann–Stieltjes Fractional Integral Boundary Conditions

open access: yesAxioms, 2021
In the present article we study existence and uniqueness results for a new class of boundary value problems consisting by non-instantaneous impulses and Caputo fractional derivative of a function with respect to another function, supplemented with ...
Suphawat Asawasamrit   +3 more
doaj   +1 more source

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