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Wyszukujesz frazę "Frechet" wg kryterium: Temat


Tytuł:
On /()X\)-convex functions
Autorzy:
Rolewicz, Stefan
Powiązania:
https://bibliotekanauki.pl/articles/744941.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
\(X\)-convex functions, Frechet differentiability
Opis:
Let \(X\) be a Banach space. Let \(f(\cdot)\) be a real valued function defined on an open convex set \(\Omega \subset X^*\), where \(X^*\) as usual denote the conjugate space. We say that the function \(f(\cdot)\) is \(X$\)convex, if there is a set \(\Phi_f \subset X\) such that $$ f(x^*)= sup_{x \in \Phi_f, r \in \R} x^*(x)+r. \eqno{(1)}$$ In the paper it will be shown that if \(X\) is separable, then the function \(f(\cdot)\) is Frechet differentiable on a dense \(G_{\delta}\) set.
Źródło:
Commentationes Mathematicae; 2013, 53, 2
0373-8299
Pojawia się w:
Commentationes Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Examples of sequential topological groups under the continuum hypothesis
Autorzy:
Shibakov, Alexander
Powiązania:
https://bibliotekanauki.pl/articles/1205465.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
topological group
sequential space
Fréchet space
Opis:
Using CH we construct examples of sequential topological groups: 1. a pair of countable Fréchet topological groups whose product is sequential but is not Fréchet, 2. a countable Fréchet and $α_1$ topological group which contains no copy of the rationals.
Źródło:
Fundamenta Mathematicae; 1996, 151, 2; 107-120
0016-2736
Pojawia się w:
Fundamenta Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fréchet spaces of continuous vector-valued functions: Complementability in dual Fréchet spaces and injectivity
Autorzy:
Domański, P.
Drewnowski, L.
Powiązania:
https://bibliotekanauki.pl/articles/1293180.pdf
Data publikacji:
1992
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Fréchet spaces of (weakly, weak*) continuous vector-valued functions injective Fréchet spaces
spaces complemented in dual Fréchet spaces
complemented copies of $c_0$
Josefson-Nissenzweig theorem
Opis:
Fréchet spaces of strongly, weakly and weak*-continuous Fréchet space valued functions are considered. Complete solutions are given to the problems of their injectivity or embeddability as complemented subspaces in dual Fréchet spaces.
Źródło:
Studia Mathematica; 1992, 102, 3; 257-267
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Local subdifferentials and multivariational inequalities in Banach and Frechet spaces
Autorzy:
Kasyanov, P. O.
Mel'nik V., S.
Piccirillo, A. M.
Powiązania:
https://bibliotekanauki.pl/articles/255055.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
local subdifferential
multi-variational inequality
Frechet space
Opis:
Some functional-topological concepts of subdifferential and locally subdifferential maps in Frechet spaces are established. Multivariational inequalities with an operator of the pseudomonotone type, connected with subdifferential maps, are considered.
Źródło:
Opuscula Mathematica; 2008, 28, 3; 295-311
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Frechet differential of a power series in Banach algebras
Autorzy:
Silvestri, B.
Powiązania:
https://bibliotekanauki.pl/articles/254781.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Frechet differentiation in Banach algebras
functional calculus
Opis:
We present two new forms in which the Fréchet differential of a power series in a unitary Banach algebra can be expressed in terms of absolutely convergent series involving the commutant C(T) : A → [A, T]. Then we apply the results to study series of vector-valued functions on domains in Banach spaces and to the analytic functional calculus in a complex Banach space.
Źródło:
Opuscula Mathematica; 2010, 30, 2; 155-177
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An example of a Fréchet algebra which is a principal ideal domain
Autorzy:
Carboni, Graciela
Larotonda, Angel
Powiązania:
https://bibliotekanauki.pl/articles/1206135.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Fréchet algebra
principal ideal domain
quasi-analytic class
Opis:
We construct an example of a Fréchet m-convex algebra which is a principal ideal domain, and has the unit disk as the maximal ideal space.
Źródło:
Studia Mathematica; 2000, 138, 3; 265-275
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Type II Topp-Leone Frechet distribution: properties and applications
Autorzy:
Shanker, Rama
Rahman, Umme Habibah
Powiązania:
https://bibliotekanauki.pl/articles/1917058.pdf
Data publikacji:
2021-12-08
Wydawca:
Główny Urząd Statystyczny
Tematy:
Frechet distribution
Topp-Leone distribution
reliability properties
applications
Opis:
The paper focuses on type II Topp-Leone Frechet distribution. Its properties including hazard rate function, reverse hazard rate function, Mills ratio, quantile function and order statistics have been studied. The maximum likelihood estimation used for estimating the parameters of the proposed distribution has been explained and expressions for the Fisher information matrix and confidence intervals have been provided. The paper discusses the applications of the distribution for modeling several datasets relating to temperature. Finally, the goodness of fit of the proposed distribution has been compared with that of the Frechet distribution.
Źródło:
Statistics in Transition new series; 2021, 22, 4; 139-152
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On cyclic α(·)-monotone multifunctions
Autorzy:
Rolewicz, S.
Powiązania:
https://bibliotekanauki.pl/articles/1206025.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Fréchet Φ-differentiability
cyclic α(·)-monotone multi- function
Opis:
Let (X,d) be a metric space. Let Φ be a linear family of real-valued functions defined on X. Let $Γ: X → 2^{Φ}$ be a maximal cyclic α(·)-monotone multifunction with non-empty values. We give a sufficient condition on α(·) and Φ for the following generalization of the Rockafellar theorem to hold. There is a function f on X, weakly Φ-convex with modulus α(·), such that Γ is the weak Φ-subdifferential of f with modulus α(·), $Γ(x)=∂^{-α}_{Φ}f|_{x}$.
Źródło:
Studia Mathematica; 2000, 141, 3; 263-272
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Information Geometry of Frechet Distributions
Autorzy:
Arwini, Khadiga Ali
Powiązania:
https://bibliotekanauki.pl/articles/1030590.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Frechet distribution
extreme value distributions
information geometry
statistical manifold
Opis:
Using the Fisher information matrix (FIM) as a Riemannian metric, the family of Frechet distributions determines a two dimensional Riemannian manifold. In this paper we illustrates the information geometry of the Frechet space, and derive the α-geometry as; α-connections, α-curvature tensor, α-Ricci curvature with its eigenvalues and eigenvectors, α-sectional curvature, α-mean curvature, and α-scalar curvature, where we show that Frechet space has a constant α-scalar curvature. The special case where α = 0 corresponds to the geometry induced by the Levi-Civita connection. In addition, we consider three special cases of Frechet distributions as submanifolds with dimension one, and discuss their geometrical structures, then we prove that one of these submanifolds is an isometric isomorph of the exponential manifold, which is important in stochastic process since exponential distributions represent intervals between events for Poisson processes. After that, we introduce log-Frechet distributions, and show that this family of distributions determines a Riemannian 2-manifold which is isometric with the origin manifold. Finally, an explicit expressions for some distances in Frechet space are obtained as, Kullback-Leibler distance, and J-divergence.
Źródło:
World Scientific News; 2020, 144; 296-312
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fixed point theory for multimaps defined on closed subsets of Fréchet spaces: the projective limit approach
Autorzy:
Agarwal, Ravi P.
O’Regan, Donal
Powiązania:
https://bibliotekanauki.pl/articles/960160.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Fixed point theory
projective limits
Fréchet space
projective limit
Opis:
New fixed point results are presented for maps defined on closed subsets of a Fréchet space E. The proof relies on fixed point results in Banach spaces and viewing E as the projective limit of a sequence of Banach spaces.
Źródło:
Commentationes Mathematicae; 2006, 46, 2
0373-8299
Pojawia się w:
Commentationes Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Paraconvex analysis
Autorzy:
Rolewicz, S.
Powiązania:
https://bibliotekanauki.pl/articles/970560.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
funkcja parawypukła
różniczkowalność Frecheta
alpha(.)-paraconvex functions
Frechet differentiability
Opis:
In the theory of optimization an essential role is played by the differentiability of convex functions. In this paper we shall try to extend the results concerning differentiability to a larger class of functions called strongly alpha(.)-paraconvex. Let (X, (|.||) be a real Banach space. Let f(x) be a real valued strongly alpha(.)-paraconvex function denned on an open convex subset Omega [is a subset is] X, i.e. f(tx+(1-t)y)
Źródło:
Control and Cybernetics; 2005, 34, 3; 951-965
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On α(·)-monotone multifunctions and differentiability of γ-paraconvex functions
Autorzy:
Rolewicz, S.
Powiązania:
https://bibliotekanauki.pl/articles/1217274.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Fréchet Φ-differentiability
γ-paraconvex functions
α(·)-monotone multifunctions
Opis:
Let (X,d) be a metric space. Let Φ be a family of real-valued functions defined on X. Sufficient conditions are given for an α(·)-monotone multifunction $Γ: X → 2^Φ$ to be single-valued and continuous on a weakly angle-small set. As an application it is shown that a γ-paraconvex function defined on an open convex subset of a Banach space having separable dual is Fréchet differentiable on a residual set.
Źródło:
Studia Mathematica; 1999, 133, 1; 29-37
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fixed point theory for multivalued maps in Fréchet spaces via degree and index theory
Autorzy:
Agarwal, R.
O'Regan, D.
Sahu, D.
Powiązania:
https://bibliotekanauki.pl/articles/729475.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
multivalued maps
Fréchet space
degree and index theory
projective limit
Opis:
New fixed point results are presented for multivalued maps defined on subsets of a Fréchet space E. The proof relies on the notion of a pseudo open set, degree and index theory, and on viewing E as the projective limit of a sequence of Banach spaces.
Źródło:
Discussiones Mathematicae, Differential Inclusions, Control and Optimization; 2007, 27, 2; 399-409
1509-9407
Pojawia się w:
Discussiones Mathematicae, Differential Inclusions, Control and Optimization
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Robust m-estimator of parameters in variance components model
Autorzy:
Zmyślony, Roman
Zontek, Stefan
Powiązania:
https://bibliotekanauki.pl/articles/729842.pdf
Data publikacji:
2002
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
Robust estimator
maximum likelihood estimator
statistical functional
Fisher consistency
Fréchet differentiability
Opis:
It is shown that a method of robust estimation in a two way crossed classification mixed model, recently proposed by Bednarski and Zontek (1996), can be extended to a more general case of variance components model with commutative a covariance matrices.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2002, 22, 1-2; 61-71
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterisation of some generalised continuous distributions by doubly truncated moments
Autorzy:
Athar, Haseeb
Ahsanullah, Mohammad
Ali, Mohd. Almech
Powiązania:
https://bibliotekanauki.pl/articles/2204096.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
truncated moment
characterisation
probability distribution
Weibull
power function
Frechet
Pareto
Lindley
Opis:
The characterisation of probability distribution plays an important role in statistical studies. There are various methods of characterisation available in the literature. The characterisation using truncated moments limits the observations; hence, researchers may save time and cost. In this paper, the characterisation of three general forms of continuous distributions based on doubly truncated moments has been studied. The results are given simply and explicitly. Further, the results have been applied to some well-known continuous distributions.
Źródło:
Operations Research and Decisions; 2023, 33, 1; 1--19
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factorization of Montel operators
Autorzy:
Dierolf, S.
Domański, P.
Powiązania:
https://bibliotekanauki.pl/articles/1292530.pdf
Data publikacji:
1993
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Fréchet space
Fréchet-Montel space
complete LB-space
Montel LB-space
regular LB-space
Mackey completion of an LB-space
bornologicity of C(K,E)
Opis:
Consider the following conditions. (a) Every regular LB-space is complete; (b) if an operator T between complete LB-spaces maps bounded sets into relatively compact sets, then T factorizes through a Montel LB-space; (c) for every complete LB-space E the space C (βℕ, E) is bornological. We show that (a) ⇒ (b) ⇒ (c). Moreover, we show that if E is Montel, then (c) holds. An example of an LB-space E with a strictly increasing transfinite sequence of its Mackey derivatives is given.
Źródło:
Studia Mathematica; 1993, 107, 1; 15-32
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Robust estimation in the multivariate normal model
Autorzy:
Kulawik, Agnieszka
Zontek, Stefan
Powiązania:
https://bibliotekanauki.pl/articles/729726.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
asymptotic normality
Fisher consistency
Fréchet differentiability
multivariate normal model
statistical functional
Opis:
Robust estimation presented in the following paper is based on Fisher consistent and Fréchet differentiable statistical functionals. The method has been used in the multivariate normal model with variance components [5]. To transfer the method to estimate vector of expectations and positive definite covariance matrix of the multivariate normal model it is required to express the covariance matrix as a linear combination of basic elements of the vector space of real, square and symmetric matrices. The theoretical results have been completed with computer simulation studies. The robust estimator has been investigated both for model and contaminated data. Comparison with the maximum likelihood estimator has also been included.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2016, 36, 1-2; 53-66
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena ryzyka zagrożenia powodziowego na rzece Nysa Kłodzka z wykorzystaniem wybranych rozkładów prawdopodobieństwa wartości ekstremalnych
Assessment of flood risk on the Nysa Klodzka River using selected extreme values distributions
Autorzy:
Kuźmiński, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/424955.pdf
Data publikacji:
2016
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
flood risk
one-yaer maximum
water level
Gumbel distribution
Frechet distribution
Opis:
The article concerns the application of selected distributions of extreme values to estimate the risk of occurring of flood danger in Lower Silesia. In the study a daily water level on the Nysa Klodzka River was used, that was gathered in the hydrological station in Bystrzyca Klodzka. From the collected data from the period 1981-2013 biannual maximum water level was selected. Two theoretical distributions: Gumbel and Frechet were fitted to the empirical distribution of biannual maximal. The best fitted two distributions were used for the exemplary assessment of flood danger.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2016, 1 (51); 48-60
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Generalised Odd Frechet Family of Distributions: Properties and Applications
Autorzy:
Marganpoor, Shahdie
Ranjbar, Vahid
Alizadeh, Morad
Abdollahnezhad, Kamel
Powiązania:
https://bibliotekanauki.pl/articles/1058928.pdf
Data publikacji:
2020-09-04
Wydawca:
Główny Urząd Statystyczny
Tematy:
Frechet distribution
Wiebull distribution
structural properties
failure-time
maximum likelihood estimation
Opis:
A new distribution called Generalized Odd Fréchet (GOF) distribution is presented and its properties explored. Some structural properties of the proposed distribution, including the shapes of the hazard rate function, moments, conditional moments, moment generating function, skewness, and kurtosis are presented. Mean deviations, Lorenz and Bonferroni curves, Rényi entropy, and the distribution of order statistics are given. The maximum likelihood estimation technique is used to estimate the model parameters, and finally applications of the model to a real data set are presented to illustrate the usefulness of the proposed distribution.
Źródło:
Statistics in Transition new series; 2020, 21, 3; 109-128
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Functions of several variables of finite variation and their differentiability
Autorzy:
Idczak, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/1311656.pdf
Data publikacji:
1994
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
functions of several variables
nondecreasing functions
functions of finite variation
Fréchet differentiability
Opis:
Some differentiability properties of functions of several variables of finite variation are investigated.
Źródło:
Annales Polonici Mathematici; 1994-1995, 60, 1; 47-56
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How to define "convex functions" on differentiable manifolds
Autorzy:
Rolewicz, Stefan
Powiązania:
https://bibliotekanauki.pl/articles/729398.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
Fréchet differetiability
Gateaux differentiability
locally strongly paraconvex functions
$C^{1,u}$-manifolds
Opis:
In the paper a class of families (M) of functions defined on differentiable manifolds M with the following properties:
$1_{}$. if M is a linear manifold, then (M) contains convex functions,
$2_{}$. (·) is invariant under diffeomorphisms,
$3_{}$. each f ∈ (M) is differentiable on a dense $G_{δ}$-set,
is investigated.
Źródło:
Discussiones Mathematicae, Differential Inclusions, Control and Optimization; 2009, 29, 1; 7-17
1509-9407
Pojawia się w:
Discussiones Mathematicae, Differential Inclusions, Control and Optimization
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of COVID-19 and cancer data using new half-logistic generated family of distributions
Autorzy:
Khan, Sadaf
Tahir, Muhammad H.
Jamal, Farrukh
Powiązania:
https://bibliotekanauki.pl/articles/29127967.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
half-logistic distribution
generalized family
likelihood estimation
bio-medical data
Frechet distribution
Opis:
We focus on a specific sub-model of the proposed family that we call the new half logistic-Fréchet. This sub-model stems from a new generalisation of the half-logistic distribution which we call the new half-logistic-G. The novelty of proposing this new family is that it does not include any additional parameters and instead relies on the baseline parameter. Standard statistical formulas are used to show the forms of the density and failure rate functions, ordinary and incomplete moments with generating functions, and random variate generation. The maximum likelihood estimation procedure is used to estimate the set of parameters. We conduct a simulation analysis to ensure that our calculations are converging with lower mean square error and biases. We use three real-life data sets to equate our model to well-established existing models. The proposed model outperforms the well-established four parameters beta Fréchet and exponentiated generalized Fréchet for some real- -life results, with three parameters such as half-logistic Fréchet, exponentiated Fréchet, Zografos–Balakrishnan gamma Fréchet, Topp–Leonne Fréchet, and Marshall–Olkin Fréchet and two-parameter classical Fréchet distribution.
Źródło:
Operations Research and Decisions; 2023, 33, 4; 71--95
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of rounding errors on a certain class of iterative methods
Autorzy:
Argyros, Ioannis
Powiązania:
https://bibliotekanauki.pl/articles/1208172.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Fréchet derivative
Lipschitz conditions
Newton-like method
inexact Newton-like method
Banach space
Opis:
In this study we are concerned with the problem of approximating a solution of a nonlinear equation in Banach space using Newton-like methods. Due to rounding errors the sequence of iterates generated on a computer differs from the sequence produced in theory. Using Lipschitz-type hypotheses on the mth Fréchet derivative (m ≥ 2 an integer) instead of the first one, we provide sufficient convergence conditions for the inexact Newton-like method that is actually generated on the computer. Moreover, we show that the ratio of convergence improves under our conditions. Furthermore, we provide a wider choice of initial guesses than before. Finally, a numerical example is provided to show that our results compare favorably with earlier ones.
Źródło:
Applicationes Mathematicae; 2000, 27, 3; 369-375
1233-7234
Pojawia się w:
Applicationes Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extreme value distributions in the analysis of traffic time on the Świnoujście–Szczecin fairway
Autorzy:
Kasyk, L.
Powiązania:
https://bibliotekanauki.pl/articles/135336.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
traffic time
fairway
generalized extreme value distributions
Frechet distribution
crossing time
simulated models
Opis:
The present article addresses the issue of crossing time on the fairway, modeling in restricted areas, where vessel traffic flow is disturbed. Data of movement time on the Świnoujście–Szczecin fairway was grouped according to ship type. The probability distributions describing the crossing time of different ship groups were analyzed. Using the Pearson chi-square goodness-of-fit and Cramer–von Mises tests it has been shown that the best distributions describing traffic time of all ship groups are the generalized extreme value distributions.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 47 (119); 80-84
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Topological tensor products of a Fréchet-Schwartz space and a Banach space
Autorzy:
Peris, Alfredo
Powiązania:
https://bibliotekanauki.pl/articles/1292616.pdf
Data publikacji:
1993
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Fréchet-Schwartz spaces
(DFS)-spaces
topological tensor products
approximation property
compact approximation property
Opis:
We exhibit examples of countable injective inductive limits E of Banach spaces with compact linking maps (i.e. (DFS)-spaces) such that $E ⊗_{ε} X$ is not an inductive limit of normed spaces for some Banach space X. This solves in the negative open questions of Bierstedt, Meise and Hollstein. As a consequence we obtain Fréchet-Schwartz spaces F and Banach spaces X such that the problem of topologies of Grothendieck has a negative answer for $F ⨶_π X$. This solves in the negative a question of Taskinen. We also give examples of Fréchet-Schwartz spaces and (DFS)-spaces without the compact approximation property and with the compact approximation property but without the approximation property.
Źródło:
Studia Mathematica; 1993, 106, 2; 189-196
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł

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