Microbleeds, cerebral hemorrhage, and functional outcome after stroke thrombolysis: individual patient data meta-analysis

…, H Erdur, PP Klinger-Gratz, M El-Koussy, W Takahashi… - Stroke, 2017 - Am Heart Assoc
Background and Purpose— We assessed whether the presence, number, and distribution of
cerebral microbleeds (CMBs) on pre-intravenous thrombolysis MRI scans of acute ischemic …

Weak convergence theorems for nonexpansive mappings and monotone mappings

W Takahashi, M Toyoda - Journal of Optimization Theory and Applications, 2003 - Springer
In this paper, we introduce an iteration process of finding a common element of the set of
fixed points of a nonexpansive mapping and the set of solutions of a variational inequality …

Strong convergence of a proximal-type algorithm in a Banach space

S Kamimura, W Takahashi - SIAM Journal on Optimization, 2002 - SIAM
… Then we obtain lim supi→∞ φ(xni ,w∗) ≤ 0 and hence φ(xni ,w∗) → 0. It follows from
Proposition 2 that xni → w∗. This means that the whole sequence {xn} converges weakly to w∗ …

[HTML][HTML] Radiation pneumonitis after stereotactic radiation therapy for lung cancer

H Yamashita, W Takahashi, A Haga… - World journal of …, 2014 - ncbi.nlm.nih.gov
Stereotactic body radiation therapy (SBRT) has a local control rate of 95% at 2 years for non-small
cell lung cancer (NSCLC) and should improve the prognosis of inoperable patients, …

A convexity in metric space and nonexpansive mappings, I

W Takahashi - Kodai mathematical seminar reports, 1970 - jstage.jst.go.jp
… a convex structure such that there exists a mapping W from XxXx[Q, 1] to X (ie W(x, y λ) defined
for all … [7] TAKAHASHI, W., Fixed point theorem for amenable semigroup of nonexpansive …

Viscosity approximation methods for equilibrium problems and fixed point problems in Hilbert spaces

S Takahashi, W Takahashi - Journal of Mathematical Analysis and …, 2007 - Elsevier
In this paper, we introduce an iterative scheme by the viscosity approximation method for
finding a common element of the set of solutions of an equilibrium problem and the set of fixed …

[PDF][PDF] Strong convergence theorems for nonexpansive mappings and nonexpansive semigroups

K Nakajo, W Takahashi - Journal of mathematical analysis and …, 2003 - core.ac.uk
… Atsushiba, W. Takahashi, A weak convergence theorem for nonexpansive semigroups by
the Mann iteration process in Banach spaces, in: W. …

A strong convergence theorem for relatively nonexpansive mappings in a Banach space

S Matsushita, W Takahashi - Journal of Approximation Theory, 2005 - Elsevier
… Motivated by Nakajo and Takahashi [9], our purpose in this paper is to prove a strong
convergence theorem for relatively nonexpansive mappings in a Banach space. Using this result, …

Weak convergence theorem by an extragradient method for nonexpansive mappings and monotone mappings

N Nadezhkina, W Takahashi - Journal of Optimization Theory and …, 2006 - Springer
In this paper, we introduce an iterative process for finding the common element of the set of
fixed points of a nonexpansive mapping and the set of solutions of the variational inequality …

Strong convergence theorems by hybrid methods for families of nonexpansive mappings in Hilbert spaces

W Takahashi, Y Takeuchi, R Kubota - Journal of Mathematical Analysis and …, 2008 - Elsevier
… In this paper, motivated by Nakajo and Takahashi’s theorems, … which is different from
Nakajo and Takahashi [6]. Using this … From (b), we have that w = T w for all T ∈ T . If not, there …