Results 71 to 80 of about 1,550,218 (322)
Weak Coupled Coincidence Point Results Having a Partially Ordering in Fuzzy Metric Spaces
Fuzzy Information and Engineering, 2016 Coupled coincidence and fixed point problems have been in the focus of the research interest for last few years. The problem was introduced in fuzzy metric spaces only very recently. In this paper, we work out a weak coupled coincidence point theorem for
P. Saha +2 more
doaj +1 more source
COUPLED FIXED POINT THEOREMS OF INTEGRAL TYPE MAPPINGS IN CONE METRIC SPACES [PDF]
, 2012 In this paper, we prove some coupled fixed point theorems in cone metric spaces. Furthermore, we introduce and prove the integral version of coupled fixed point theorems in cone metric spaces.
Akewe, H, Okeke, G.A., Olaleru, J.O.
core
Further Evidence for a Gravitational Fixed Point
, 2005 A theory of gravity with a generic action functional and minimally coupled to N matter fields has a nontrivial fixed point in the leading large N approximation.
I. L. Buchbinder +2 more
core +3 more sources
Discovering and quantifying nontrivial fixed points in multi-field models [PDF]
, 2016 We use the functional renormalization group and the $\epsilon$-expansion concertedly to explore multicritical universality classes for coupled $\bigoplus_i O(N_i)$ vector-field models in three Euclidean dimensions.
Eichhorn, Astrid +3 more
core +2 more sources
Existence theorems of coupled fixed points
Journal of Mathematical Analysis and Applications, 1991 Let D be a subset of a real partially ordered Banach space E. Let A: \(D\times D\to E\) be a mixed monotone operator (i.e. \(A(\cdot,y)\) is nondecreasing and \(A(x,\cdot)\) is nonincreasing). A point \((x^*,y^*)\in D\times D\) is called a coupled fixed point of A if \(x^*=A(x^*,y^*)\) and \(y^*=A(y^*,x^*)\). Let \(\tilde A:\) \(D\times D\to E\times E\)
openaire +2 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai +4 more
wiley +1 more source
Hyers-Ulam stability for coupled random fixed point theorems and applications to periodic boundary value random problems [PDF]
, 2019 In this paper, we prove some existence, uniqueness and Hyers-Ulam stability results for the coupled random fixed point of a pair of contractive type random operators on separable complete metric spaces. The approach is based on a new version of the Perov
Blouhi, Tayeb +2 more
core
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Derivative Expansion of the Exact Renormalization Group
, 1994 The functional flow equations for the Legendre effective action, with respect to changes in a smooth cutoff, are approximated by a derivative expansion; no other approximation is made.
Hasenfratz +7 more
core +1 more source
Holography for inflation using conformal perturbation theory [PDF]
, 2012 We provide a precise and quantitative holographic description of a class of inflationary slow-roll models. The dual QFT is a deformation of a three-dimensional CFT by a nearly marginal operator, which, in the models we consider, generates an RG flow to a
Bzowski, Adam +2 more
core +1 more source