Results 71 to 80 of about 9,880 (171)

The Investigation of Some Essential Concepts of Extended Fuzzy‐Valued Convex Functions and Their Applications

open access: yesAdvances in Fuzzy Systems, Volume 2024, Issue 1, 2024.
In this paper, we are thus motivated to define and introduce the extended fuzzy‐valued convex functions that can take the singleton fuzzy values −∞˜ and +∞˜ at some points. Such functions can be characterized using the notions of effective domain and epigraph.
T. Allahviranloo   +7 more
wiley   +1 more source

Fréchet directional differentiability and Fréchet differentiability [PDF]

open access: yes, 1996
summary:Zaj'\i ček has recently shown that for a lower semi-continuous real-valued function on an Asplund space, the set of points where the function is Fréchet subdifferentiable but not Fréchet differentiable is first category.
Sciffer, Scott, Giles, J. R.
core   +1 more source

Hukuhara's differentiable iteration semigroups of linear set-valued functions [PDF]

open access: yesAnnales Polonici Mathematici, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Usage of the Fuzzy Adomian Decomposition Method for Solving Some Fuzzy Fractional Partial Differential Equations

open access: yesAdvances in Fuzzy Systems, Volume 2024, Issue 1, 2024.
In this study, we examine the numerical solutions of nonlinear fuzzy fractional partial differential equations under the Caputo derivative utilizing the technique of fuzzy Adomian decomposition. This technique is used as an alternative method for obtaining approximate fuzzy solutions to various types of fractional differential equations and also ...
Nagwa A. Saeed   +2 more
wiley   +1 more source

Numerical Investigation to Fuzzy Volterra Integro-Differential Equations via Residual Power Series Method

open access: yesASM Science Journal, 2020
In this paper, a study of a numerical approximate solution to fuzzy Volterra integro-differential equations is presented under strongly generalised differentiability by applying an influent effective technique, called the Residual Power Series (RPS ...
Mohammad Alshammari
doaj   +1 more source

On the solutions for box differential equations under generalized Hukuhara derivative [PDF]

open access: yesAdvances in Difference Equations, 2014
في هذه الورقة، يتم النظر في المعادلات التفاضلية للمربع تحت مشتقات هوكوهارا المعممة. ندرس نتائج وجود وتفرد معادلات BOX المتكاملة التي تستخدم طريقة الحلول العلوية والسفلية. علاوة على ذلك، يتم اتباع النهج لإثبات وجود حلول لمشكلة القيمة الأولية للمعادلات التفاضلية الصندوقية. يتم توضيح الطريقة من خلال بعض الأمثلة.
openaire   +2 more sources

Continuity equations and ODE flows with non-smooth velocity [PDF]

open access: yes, 2014
In this paper we review many aspects of the well-posedness theory for the Cauchy problem for the continuity and transport equations and for the ordinary differential equation (ODE). In this framework, we deal with velocity fields that are not smooth, but
Crippa, Gianluca, Ambrosio, Luigi
core   +1 more source

Continuous Differentiability in the Context of Generalized Approach to Differentiability

open access: yes, 2023
Recently, in their paper, the authors generalized the notion of differentiability by defining it for all points of the functional domain (not only interior points) in which the notion of differentiability can be considered meaningful.
Nikola Koceić-Bilan, Snježana Braić
core   +1 more source

Fractional order ecological system for complexities of interacting species with harvesting threshold in imprecise environment

open access: yesAdvances in Difference Equations, 2019
The key objective of this paper is to study the imprecise biological complexities in the interaction of two species pertaining to harvesting threshold. It is explained by taking the prey–predator model with imprecise biological parameters and fractional ...
Najeeb Alam Khan   +3 more
doaj   +1 more source

On the Kneser-Hukuhara property for an integro-differential equation in Banach spaces [PDF]

open access: yesTatra Mountains Mathematical Publications, 2011
Abstract In this paper we investigate some topological properties of solutions sets of some integro-differential equations in Banach spaces. Our assumptions and proofs are expressed in terms of the measure of weak noncompactness.
openaire   +1 more source

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