Results 291 to 300 of about 1,434,936 (326)
Some of the next articles are maybe not open access.
International Journal of Intelligent Systems, 2009
Summary: Harmonic mean is a conservative average, which is widely used to aggregate central tendency data. In the existing literature, the harmonic mean is generally considered as a fusion technique of numerical data information. In this paper, we investigate the situations in which the input data are expressed in fuzzy values and develop some fuzzy ...
openaire +2 more sources
Summary: Harmonic mean is a conservative average, which is widely used to aggregate central tendency data. In the existing literature, the harmonic mean is generally considered as a fusion technique of numerical data information. In this paper, we investigate the situations in which the input data are expressed in fuzzy values and develop some fuzzy ...
openaire +2 more sources
2009
Aspects of the theory of mean ergodic operators and bases in Frechet spaces were recently developed in [1]. This investigation is extended here to the class of barrelled locally convex spaces. Duality theory, also for operators, plays a prominent role.
ALBANESE, Angela Anna +2 more
openaire +2 more sources
Aspects of the theory of mean ergodic operators and bases in Frechet spaces were recently developed in [1]. This investigation is extended here to the class of barrelled locally convex spaces. Duality theory, also for operators, plays a prominent role.
ALBANESE, Angela Anna +2 more
openaire +2 more sources
MEAN VALUE OF ANALYTIC OPERATOR FUNCTIONS
Acta Mathematica Scientia, 1995Summary: It is proved that if \(A\) is a normal proper contraction on Hilbert space \({\mathcal H}\) and \(F(z)=U(z)+iV(z)\) is operator-valued analytic on the unit disc \(\Delta\) and ...
Yu, Xiaopei, Jian, Ming
openaire +2 more sources
Integral Equations and Operator Theory, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Operator means and positivity of block operators
Mathematische Zeitschrift, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
2010
It is a consequence of a well-known theorem of Godement [1952] that if X is a two-point homogeneous space and u a harmonic function on X, i.e., Lu = 0, then u has the mean-value ...
openaire +1 more source
It is a consequence of a well-known theorem of Godement [1952] that if X is a two-point homogeneous space and u a harmonic function on X, i.e., Lu = 0, then u has the mean-value ...
openaire +1 more source
The Spectrum of Weighted Mean Operators
Canadian Mathematical Bulletin, 1987AbstractRecently J. B. Reade determined the spectrum of C, the Cesaro matrix of order 1, considered as an operator on c0, the space of null sequences. Previously F. P. A. Cass and the author had determined the spectra for a large class of weighted mean operators on c, the space of convergent sequences.
openaire +2 more sources
MEAN CONVERGENCE OF SOME POSITIVE OPERATORS
Acta Mathematica Scientia, 1995Summary: \(L^p\) convergence with \(0 ...
openaire +2 more sources
Operator Means and the Relative Operator Entropy
1992The notion of operator monotone functions was introduced by Lowner and that of operator concave functions by Kraus who is his student. Operator means were introduced by Ando and the general theory of them was established by Kubo and Ando himself. By their theory, a nonnegative operator monotone function is now considered as a variation of an operator ...
openaire +1 more source