Results 21 to 30 of about 1,584,596 (269)

A Fractional Analysis of Hyperthermia Therapy on Breast Cancer in a Porous Medium along with Radiative Microwave Heating

open access: yesFractal and Fractional, 2022
Cancer is a prominent source of mortality and morbidity globally, but little is known about how it develops and spreads. Tumor cells are unable to thrive in high-temperature environments, according to recent research.
Dolat Khan   +3 more
doaj   +1 more source

Development of generalized Fourier and Fick’s law of electro-osmotic MHD flow of sodium alginate based Casson nanofluid through inclined microchannel: exact solution and entropy generation

open access: yesScientific Reports, 2022
Electro-osmotic flow via a microchannel has numerous uses in the contemporary world, including in the biochemical and pharmaceutical industries. This research explores the electroosmotic flow of Casson-type nanofluid with Sodium Alginate nanoparticles ...
Dolat Khan   +5 more
doaj   +1 more source

Fixed Point Logics

open access: yesThe Bulletin of Symbolic Logic, 2002
AbstractWe consider fixed point logics, i.e., extensions of first order predicate logic with operators defining fixed points. A number of such operators, generalizing inductive definitions, have been studied in the context of finite model theory, including nondeterministic and alternating operators. We review results established in finite model theory,
Dawar, Anuj, Gurevich, Yuri
openaire   +2 more sources

On fixed points of permutations [PDF]

open access: yesJournal of Algebraic Combinatorics, 2008
The number of fixed points of a random permutation of 1,2,...,n has a limiting Poisson distribution. We seek a generalization, looking at other actions of the symmetric group. Restricting attention to primitive actions, a complete classification of the limiting distributions is given.
Diaconis, Persi   +2 more
openaire   +3 more sources

Fixed point combinators as fixed points of higher-order fixed point generators

open access: yesLogical Methods in Computer Science, 2020
Corrado B\"ohm once observed that if $Y$ is any fixed point combinator (fpc), then $Y(\lambda yx.x(yx))$ is again fpc. He thus discovered the first "fpc generating scheme" -- a generic way to build new fpcs from old. Continuing this idea, define an $\textit{fpc generator}$ to be any sequence of terms $G_1,\dots,G_n$ such that
openaire   +5 more sources

FIXED POINTS AND APPROXIMATE FIXED POINTS IN PRODUCT SPACES

open access: yesTaiwanese Journal of Mathematics, 2001
The paper deals with the general theme of what is known about the existence of fixed points and approximate fixed points for mappings which satisfy geometric conditions in product spaces. In particular it is shown that if X and Y are metric spaces each of which has the fixed point property for nonexpansive mappings, then the product space (X ×Y )∞ has ...
Espínola, R., Kirk, W. A.
openaire   +5 more sources

New fractional identities, associated novel fractional inequalities with applications to means and error estimations for quadrature formulas

open access: yesJournal of Inequalities and Applications, 2022
In this paper, the authors derive some new generalizations of fractional trapezium-like inequalities using the class of harmonic convex functions. Moreover, three new fractional integral identities are given, and on using them as auxiliary results some ...
Muhammad Uzair Awan   +6 more
doaj   +1 more source

Analysis of boundary layer MHD Darcy-Forchheimer radiative nanofluid flow with soret and dufour effects by means of marangoni convection

open access: yesCase Studies in Thermal Engineering, 2021
In the current article, the analysis of magnetohydrodynamic laminar flow past a vertical permeable surface is presented. The flow is considered in the existence of Dufour as well as Soret effects.
Muhammad Jawad   +4 more
doaj   +1 more source

Bounded Fixed Point Iteration

open access: yesDAIMI Report Series, 1991
In the context of abstract interpretation for languages without higher-order features we study the number of times a functional need to be unfolded in order to give the least fixed point. For the cases of total or monotone functions we obtain an exponential bound and in the case of strict and additive (or distributive) functions we obtain a quadratic ...
Hanne Riis Nielson, Flemming Nielson
openaire   +4 more sources

An inertially constructed forward–backward splitting algorithm in Hilbert spaces

open access: yesAdvances in Difference Equations, 2021
In this paper, we develop an iterative algorithm whose architecture comprises a modified version of the forward–backward splitting algorithm and the hybrid shrinking projection algorithm.
Yasir Arfat   +4 more
doaj   +1 more source

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