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1
Content available remote Pushouts of partial homomorphisms of partial algebras III: closed-domain closed quomorphisms
Alberich R., Rossello F.
Demonstratio Mathematica
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2004
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Vol. 37, nr 4
773--791
2
Content available remote On the existence of nonnegativity domains of subset of groups
Glavosits T., Száz A.
Demonstratio Mathematica
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2004
|
Vol. 37, nr 3
505--516
3
Content available remote On residually integrally closed domains
Echi O., Jarboui N.
Demonstratio Mathematica
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2003
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Vol. 36, nr 3
543--550
EN
A domain R is called residually integrally closed if R/p is an integrally closed domain for each prime ideal p of R. We show that residually integrally closed domains satisfy some chain conditions on prime ideals. We give characterization of such domains in case they contain a field of characteristic 0. Section 3 deals with domains R such that R/p is a unique factorization domain for each prime ideal p of R, these domains are showed to be PID. We also prove that domains R such that R/p is a regular domain are exactly Dedekind domains
4
Content available remote Characterization of domains through families of measures
Berrone L. R.
Demonstratio Mathematica
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2003
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Vol. 36, nr 2
313--328
5
Univalence problems for classes of functions preserving sectors
Koczan Leopold
Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka
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2002
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z. 26 [199]
89-95
EN
Let A be the set of all functions that are analytic in the disk delta = [z is an element of C : \z\ < 1} and normalized by f(O) = f'(O) - 1 = 0. Abu-Muhanna and MacGregor discussed in the paper [1] different classes of functions which preserved some sectors. For k > 2 they used notation: [...].
6
On domains of univalence for the class of typically real odd functions
Koczan L., Zaprawa P.
Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka
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2001
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z. 25 [190]
81-89
EN
The univalence problems for the class T consisting of typically real functions are connected with the name of Goluzin. It was Goluzin, who derived the radius of local univalence in the class T and described the univalence domain H in T [1]. This domain H and the domain of local univalence are equal. Moreover, H is (in some sense) the largest set in which all typically real functions are univalent, but for these functions the domain of local univalence is larger than H. This observation suggests the possibility of existence of other domains of univalence.
7
Some circular biangularly domains and convolution of functions
Piejko K.
Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka
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2000
|
z. 24 [181]
103-109
EN
Let [delta] denotes the unit disc and let H be the class of functions regular in [delta]. By N we denote the family of functions from H normalized by condition f(O) = 1. For two functions [...].
8
Estimation of the harmonic metric
Wilczek K.
Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka
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2000
|
z. 24 [181]
145-153
EN
In this paper some special metric in the given domain is investigated. Using the harmonic center of trilaterals the special harmonic coordinates of points are defined. The harmonic metric is associated with these harmonic coordinates. Some relation between this metric and another known metrics are given.
9
On bounded starlike functions
Wiśniowska A.
Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka
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1999
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z. 23 [175]
167-173
EN
In this paper we investigate subclasses of starlike functions, where zf'(z)/f(z) is contained in conic domain with vertex at the origin. These classes of functions provide examples of bounded starlike functions.
10
Content available remote Wykorzystanie domeny eliptycznej do analizy ruchu statków na przeprawie promowej przecinającej tor wodny pod danym kątem
Kasyk L.
Zeszyty Naukowe / Wyższa Szkoła Morska w Szczecinie
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1998
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nr 55
47-59
PL
Przedstawiono model przeprawy promowej przecinającej tor wodny pod pewnym kątem alfa. W modelu wykorzystano pojęcie domeny eliptycznej. Wyznaczono strefy toru wodnego dla poszczególnych jednostek torowych, które pozwalają operatorowi systemu Vessel Traffic Service - VTS na bezpieczne kierowanie ruchem na przeprawie, gdzie ruch poprzeczny jest podporządkowany ruchowi wzdłużnemu na torze. Określono również zależność między przepustowością przeprawy, a intensywnością ruchu jednostek torowych.
EN
The paper presents a model of ferry crossing. The line of the crossing is not perpendicular to the fairway. In this model an elliptic domain is used. The connection between the next watercrafts on the fairway and possibilities of safe movement is determined.
11
Convolution of functions which take values in some special angularly domains of complex plane
Piejko K., Stankiewicz J.
Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka
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1998
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z. 22 [170]
131-138
12
Frequency domain analysis and identification of flight vehicle dynamics
Baguiev M.
Research Bulletin / Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics
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1998
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nr 8
53-58
EN
A new approach to the problem of aircraft motion mathematical model structural-parametrical identification is proposed by using spectral analysis. By applying the Finite Fourier Transform to flight test data, a family of frequency characteristics and then mathematical model parameters estimation are derived. Modeling transients are executed for the purpose of comparison with flight test data. The usefulness of this algorithm is illustrated by applying to real flight test records. Finally, research into the applicability of the developed algorithm in predicting the handling qualities levels ofrotorcraft (ADS-33 C) was conducted.
13
Content available remote On the Cattabriga problem for airy equation in domains with curvilinear boundaries
Popiołek J.
Demonstratio Mathematica
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1998
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Vol. 31, nr 3
643-655
EN
This paper is concerned with the Cattabriga problem for Airy equation (a linear version of the Korteweg - de Vries equation) in domains with curvilinear boundaries. Applying the potential method we shall reduce the problem considered to a system of Volterra integral equations and then prove the existence of a solution of this system.This paper is related to the previous investigations, where the said problem has been solved in rectangular domains.
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