Zobrazeno 1 - 10
of 300
pro vyhledávání: '"Matkowski Janusz"'
Autor:
Kahlig Peter, Matkowski Janusz
Publikováno v:
Annales Mathematicae Silesianae, Vol 34, Iss 1, Pp 104-122 (2020)
Under some simple conditions on the real functions f and g defined on an interval I ⊂ (0, ∞), the two-place functions Af (x, y) = f (x) + y − f (y) and Gg(x,y)=g(x)g(y)y{G_g}\left({x,y} \right) = {{g\left(x \right)} \over {g\left(y \right)}}y g
Externí odkaz:
https://doaj.org/article/6101b55eae2a461cba6cbb0ed6cc36a2
Let $(X, \mathscr{L}, \lambda)$ and $(Y, \mathscr{M}, \mu)$ be finite measure spaces for which there exist $A \in \mathscr{L}$ and $B \in \mathscr{M}$ with either $0 < \lambda(A) < 1 < \lambda(X)$ and $0 < \mu(B) < \mu(Y)$, or the other way around. I
Externí odkaz:
http://arxiv.org/abs/2305.03227
Autor:
Matkowski Janusz
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 46, Pp 196-212 (2014)
Pre-mean in an interval I, being defined as a function M:I2 → I such that M(x,x) = x for x ∈ I,is an essential generalization of the mean. If M and N are pre-means, a map (M,N):I2 → I2 is called pre-mean-type mapping. The problem of conver
Externí odkaz:
https://doaj.org/article/fb96bbf07d2649d987a69ee71653cc8e
Autor:
Matkowski Janusz
Publikováno v:
Open Mathematics, Vol 10, Iss 6, Pp 2215-2228 (2012)
Externí odkaz:
https://doaj.org/article/889587a4035e4d398843b01c3bf70e69
Autor:
Matkowski Janusz, Wróbel Małgorzata
Publikováno v:
Open Mathematics, Vol 10, Iss 2, Pp 609-618 (2012)
Externí odkaz:
https://doaj.org/article/8bde41cfeaeb42e18551ea21ff4ca330
Autor:
Matkowski Janusz
Publikováno v:
Open Mathematics, Vol 1, Iss 4, Pp 435-440 (2003)
Externí odkaz:
https://doaj.org/article/53224d1ac9184a2b95587ff3c663ff48
Autor:
Bojarski, Jacek, Matkowski, Janusz
It is observed that in some money exchange operations, the applied $n$ -variable mean $M$ should be self reciprocally-conjugate, i.e. it should satisfy the equality \[ M\left( x_{1},\ldots,x_{n}\right) M\left( \frac{1}{x_{1}},\ldots,\frac{1}{x_{n}} \
Externí odkaz:
http://arxiv.org/abs/2101.07319
Autor:
Matkowski, Janusz, Pasteczka, Paweł
Publikováno v:
Mathematics 8 (10), Art. No. 1753(2020)
We prove that whenever the selfmapping $(M_1,\dots,M_p)\colon I^p \to I^p$, ($p \in \mathbb{N}$ and $M_i$-s are $p$-variable means on the interval $I$) is invariant with respect to some continuous and strictly monotone mean $K \colon I^p \to I$ then
Externí odkaz:
http://arxiv.org/abs/2006.13781
Autor:
Matkowski, Janusz, Pasteczka, Paweł
Publikováno v:
Math. Inequal. Appl. 24 (1), 209-217(2021)
In the finite dimensional case, mean-type mappings, their invariant means, relations between the uniqueness of invariant means and convergence of orbits of the mapping, are considered. In particular it is shown, that the uniqueness of an invariance m
Externí odkaz:
http://arxiv.org/abs/2005.10623