Results 41 to 50 of about 2,889,886 (279)

Multivalued Common Fixed Points Theorem in Complex b-Metric Spaces

Mathematics, 2023
In this paper, we establish a result for the existence of common fixed points for multi-valued mappings, satisfying some contractions for complex-valued b-metric spaces. Finally, we present an example to illustrate and support our results.
Mohamed Saadi, Taieb Hamaizia
doaj   +1 more source

Exactly Marginal Operators and Duality in Four Dimensional N=1 Supersymmetric Gauge Theory [PDF]

, 1995
We show that manifolds of fixed points, which are generated by exactly marginal operators, are common in N=1 supersymmetric gauge theory. We present a unified and simple prescription for identifying these operators, using tools similar to those employed ...
Clark, Clark, Clark, Dixon, Dobrev, Ermushev, Ermushev, Ferrara, Flato, Gates, Grisaru, Hamidi, Hamidi, Hamidi, Hamidi, Intriligator, Jiang, Jiang, Jiang, Jiang, Jones, Jones, Jones, Kapetanakis, Kazakov, Kazakov, Kazakov, Konishi, Konishi, Lerche, Lucchesi, Lucha, Lucha, Mack, Martinec, Matthew J. Strassler, Novikov, Parkes, Piguet, Piguet, Robert G. Leigh, Seiberg, Seiberg, Seiberg, Seiberg, Seiberg, Shifman, Shifman, Sibold, West, West   +50 more
core   +3 more sources

Compatible mappings and common fixed points (2)

International Journal of Mathematics and Mathematical Sciences, 1988
A common fixed point theorem of S.L. and S.P. Singh is generalized by weakening commutativity hypotheses and by increasing the number of functions involved.
Gerald Jungck
doaj   +1 more source

Common fixed points for semigroups of mappings [PDF]

Proceedings of the American Mathematical Society, 1973
Let X be a compact convex subset of a strictly convex Banach space. Let S be a Hausdorff topological semigroup which is either left amenable or left reversible. Then for any generalised nonexpansive (jointly) continuous action of S on X, X contains a common fixed point of S.
Lau, Anthony To-Ming, Wong, Chi Song
openaire   +1 more source

A note on strong convergence to common fixed points of nonexpansive mappings in Hilbert spaces [PDF]

, 2009
The aim of this paper is to investigate the links between ${\cal T}_C$-class algorithms, CQ Algorithm and shrinking projection methods. We show that strong convergence of these algorithms are related to coherent ${\cal T}_C$-class sequences of mapping ...
Chancelier, Jean-Philippe
core   +3 more sources

Communication and Language Profiles of Children Treated for Posterior Fossa Brain Tumors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cognitive and language deficits are frequently reported sequelae of posterior fossa brain tumors (PFBT). Typically, delayed onset impedes prompt assessment and early intervention. This has devastating implications for quality of life.
Zara Sved, Meghan Hesse, Jennie Cusiter, Annabel Webb, Kimberley Docking   +4 more
wiley   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source

Common Fixed Points via λ-Sequences in G-Metric Spaces

Journal of Mathematics, 2017
We use λ-sequences in this article to derive common fixed points for a family of self-mappings defined on a complete G-metric space. We imitate some existing techniques in our proofs and show that the tools employed can be used at a larger scale.
Yaé Ulrich Gaba
doaj   +1 more source

Results on common fixed points in S_b-metric spaces [PDF]

E-Journal of Analysis and Applied Mathematics
In this paper, we establish new common fixed point theorems for pairs of weakly compatible mappings within the framework of S_b-metric spaces. By introducing generalized contractive conditions, we demonstrate the existence and uniqueness of common fixed ...
Pramodkumar Sohanlal Sharma, Chintaman Tukaram Aage   +1 more
doaj   +1 more source

COMMON FIXED POINTS OF COMPATIBLE MAPPINGS

Demonstratio Mathematica, 1993
Extending results of the author [ibid. 23, No. 1, 213-218 (1990; Zbl 0731.54030)] and of \textit{B. E. Rhoades} [Some fixed point theorems for pairs of mappings, Jñānābha 15, 151-156 (1985)], some common fixed point theorems are established. Four mappings are involved satisfying a suitable expansive inequality in a complete metric space and a pairwise ...
openaire   +1 more source