Results 101 to 110 of about 2,889,886 (279)

Common Fixed Points for Commuting Cournot Maps [PDF]

Real Analysis Exchange, 2003
The author studies the existence of common fixed points of two commuting Cournot maps on \([0,1]^2\). Extensions of results by \textit{J. R. Jachymski} [Proc. Am. Math. Soc. 124, 3229--3233 (1996; Zbl 0881.54043)] and \textit{G. F. Jungck} [Proc. Am. Math. Soc. 115, 495--499 (1992; Zbl 0771.54037)] to the Cournot case are given.
openaire   +3 more sources

Implementing system simulation of C3 systems using autonomous objects [PDF]

The basis of all conflict recognition in simulation is a common frame of reference. Synchronous discrete-event simulation relies on the fixed points in time as the basic frame of reference. Asynchronous discrete-event simulation relies on fixed-points in
Rogers, Ralph V.
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Common Fixed Points for Nonlinear Quasi-Contractions of Ćirić Type

Abstract and Applied Analysis, 2014
We establish common fixed points theorems for two self-mappings satisfying a nonlinear contractive condition of Ćirić type with a Q-function. Furthermore, using the scalarization method, we deduce some results of common fixed point in tvs-cone metric ...
Fei He
doaj   +1 more source

Common Fixed Point Theorems for Contractive Maps

Journal of Mathematical Analysis and Applications, 1998
The author gives common fixed point theorems for a family of operators under minimal type commutativity and contractive conditions.
openaire   +1 more source

Common fixed points under Lipschitz type condition [PDF]

Kathmandu University Journal of Science, Engineering and Technology, 1970
The present paper is aimed at obtaining common fixed point theorems for a pair of selfmaps satisfying nonexpansive or Lipschitz type condition by using the notion of pointwise R- weak commutativity but without assuming the completeness of the space or continuity of the mappings involved. Mathematics Subject Classification: 54 H 25.
openaire   +2 more sources

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

On common fixed and periodic points of commuting functions

International Journal of Mathematics and Mathematical Sciences, 1998
It is known that two commuting continuous functions on an interval need not have a common fixed point. It is not known if such two functions have a common periodic point. In this paper we first give some results in this direction.
Aliasghar Alikhani-Koopaei
doaj   +1 more source