Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Jaworski, Piotr" wg kryterium: Autor


Tytuł:
On blowing up versal discriminants
Autorzy:
Jaworski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1341904.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
It is well-known that the versal deformations of nonsimple singularities depend on moduli. The first step in deeper understanding of this phenomenon is to determine the versal discriminant, which roughly speaking is an obstacle for analytic triviality of an unfolding or deformation along the moduli. The goal of this paper is to describe the versal discriminant of $Z_{k,0}$ and $Q_{k,0}$ singularities basing on the fact that the deformations of these singularities may be obtained as blowing ups of certain deformations of $J_{k,0}$ singularities.
Źródło:
Banach Center Publications; 1998, 44, 1; 129-140
0137-6934
Pojawia się w:
Banach Center Publications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Witt rings of function fields of quasihomogeneous varieties
Autorzy:
Jaworski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/966718.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Witt rings
graded rings
selfdual vector bundles
quasihomogeneous varieties
residue homomorphisms
Źródło:
Colloquium Mathematicum; 1997, 73, 2; 195-219
0010-1354
Pojawia się w:
Colloquium Mathematicum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the versal discriminant of $J_{k,0}$ singularities
Autorzy:
Jaworski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1311249.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
versal deformation
versal unfolding
moduli
liftable vector fields
local algebra
topological triviality
Opis:
It is well known that the versal deformations of nonsimple singularities depend on moduli. The first step in deeper understanding of this phenomenon is to determine the versal discriminant, which roughly speaking is an obstacle to analytic triviality of an unfolding or deformation along the moduli. The versal discriminant of the Pham singularity ($J_{3,0}$ in Arnold's classification) was thoroughly investigated by J. Damon and A. Galligo [2], [3], [4]. The goal of this paper is to continue their work and to describe the versal discriminant of a general $J_{k,0}$ singularity.
Źródło:
Annales Polonici Mathematici; 1996, 63, 1; 89-99
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decompositions of hypersurface singularities oftype $J_{k,0}$
Autorzy:
Jaworski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1311702.pdf
Data publikacji:
1994
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
hypersurface singularity
j-invariant
underdiagonal deformation
shift transformation
quasihomogeneous transformation
Opis:
Applications of singularity theory give rise to many questions concerning deformations of singularities. Unfortunately, satisfactory answers are known only for simple singularities and partially for unimodal ones. The aim of this paper is to give some insight into decompositions of multi-modal singularities with unimodal leading part. We investigate the $J_{k,0}$ singularities which have modality k - 1 but the quasihomogeneous part of their normal form only depends on one modulus.
Źródło:
Annales Polonici Mathematici; 1994, 59, 2; 117-131
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the topological triviality along moduli of deformations of $J_{k,0}$ singularities
Autorzy:
Jaworski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1207851.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
$J_{k,0}$ singularities
topological trivialization
moduli of singularities
Opis:
It is well known that versal deformations of nonsimple singularities depend on moduli. However they can be topologically trivial along some or all of them. The first step in the investigation of this phenomenon is to determine the versal discriminant (unstable locus), which roughly speaking is the obstacle to analytic triviality. The next one is to construct continuous liftable vector fields smooth far from the versal discriminant and to integrate them. In this paper we extend the results of J. Damon and A. Galligo, concerning the case of the Pham singularity ($J_{3,0}$ in Arnold's classification) (see [2, 3, 4]), and deal with deformations of general $J_{k,0}$ singularities.
Źródło:
Annales Polonici Mathematici; 2000, 75, 3; 193-212
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the uniqueness of the quasihomogeneity
Autorzy:
Jaworski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1341450.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
The aim of this paper is to show that the quasihomogeneity of a quasihomogeneous germ with an isolated singularity uniquely extends to the base of its analytic miniversal deformation.
Źródło:
Banach Center Publications; 1999, 50, 1; 163-167
0137-6934
Pojawia się w:
Banach Center Publications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interdependence of sentiment indicators − a case of the Polish OTC market
Autorzy:
Jaworski, Piotr
Mielus, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/949757.pdf
Data publikacji:
2017
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
emerging markets
market sentiment
cointegration analysis
Opis:
Prices observed on emerging markets are affected by market sentiment changes. The article presents an interdependence analysis of a chosen set of sentiment indicators observed on the Polish OTC market. The set contains both interest rate market (basis swap, asset swap, convergence swap, overnight index swap), foreign exchange market (ATM volatility, risk reversal) and equity market (WIG20). The analysis is focused on cointegration and Granger causality approach in order to present forecasting power of elaborated models. Evidence from the market reveals economic link between the time series that comes from the strong influence of the cross-border trading between non-residents and local market makers. High responsiveness of daily prices of OTC instruments to the changes of the market sentiment and a level of the risk aversion can be proven. Moreover, error correction model using foreign exchange options has practical forecasting power generating adequate trading decisions taken by market makers
Źródło:
Financial Sciences. Nauki o Finansach; 2017, 2(31); 31-43
2080-5993
2449-9811
Pojawia się w:
Financial Sciences. Nauki o Finansach
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The defences of the Roman legionary fortress at Novae (Lower Moesia) and coin finds from the latest excavations “Per lineam munitionum”: numismatic and archaeological interpretation
Autorzy:
Jaworski, Piotr
Zakrzewski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1632436.pdf
Data publikacji:
2020-12-19
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
Roman fortifications
legionary fortress
numismatics
coins
Novae
Lower Moesia
Opis:
This paper aims to present the results of archaeological works carried out within the framework of a post-excavation project, “Per lineam munitionum”, between 2005–2016 around the fortification system of the Roman legionary fortress and the late Roman and early Byzantine town of Novae. The research concentrated generally on completing and recording old trenches as well as recording remains of the original building substance, stratigraphy and other archaeological remains using modern technologies and precise geodetic equipment. The archaeological data and stratigraphical observations were compared with the numismatic findings in an effort to improve the final interpretation and the reconstruction of the main construction phases.
Źródło:
Polish Archaeology in the Mediterranean; 2020, 29(2); 357-406
1234-5415
Pojawia się w:
Polish Archaeology in the Mediterranean
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An unknown coin of Pupius Rufus struck in Cyrenaica
Nieznana moneta Pupiusa Rufusa wybita w Cyrenajce
Autorzy:
Jaworski, Piotr
Dzierzbicka, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/16470228.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Źródło:
Wiadomości Numizmatyczne; 2009, 53, 2 (188); 183-192
0043-5155
Pojawia się w:
Wiadomości Numizmatyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Respublica Liberata. The coin of Brutus commemorating the ides of march in the emblematic interpretation of Alciatus
Respublica Liberata. Moneta Brutusa upamiętniająca Idy Marcowe w emblematycznej interpretacji Alciatusa
Autorzy:
Czarski, Bartłomiej
Jaworski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2091009.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
Wiadomości Numizmatyczne; 2015, 59, 1-2 (199-200); 249-284
0043-5155
Pojawia się w:
Wiadomości Numizmatyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Credit rating a ryzyko kredytowe emitenta
Autorzy:
Chodnicka-Jaworska, Patrycja
Jaworski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/630098.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Handlowa w Warszawie
Tematy:
rating
credit risk
credit capacity
bond yield
Opis:
The purpose of this paper is to analyse the impact of country's credit rating on issuers' credit risk measured by the difference between bond yields and IRS spreads. Based on literature review, the following hypothesis has been proposed: the decrease and increase of credit ratings have a statistically significant impact on the issuers' credit risk. The study was conducted using event study methodology, Thomson Reuters Database data for the period 1990-2016 and S&P, Fitch and Moody foreign long-term issuer credit ratings. Ten-year treasury bonds and IRS spreads were used to verify the hypothesis.
Źródło:
Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace; 2018, 2; 171-182
2082-0976
Pojawia się w:
Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The rise and fall of the Roman fort in Apsaros: recent numismatic evidence
Autorzy:
Jaworski, Piotr
Karasiewicz-Szczypiorski, Radosław
Mamuladze, Shota
Powiązania:
https://bibliotekanauki.pl/articles/2033284.pdf
Data publikacji:
2021-12-31
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
Georgia
Colchis
Apsaros
Gonio
numismatics
coins
Opis:
Archaeological discoveries made since 2014 at the site of the Roman fort in Apsaros/Gonio (Georgia) have shed more light on the earliest as well as later stages of the presence of the Roman army on the Colchis coast and on the history of the Apsaros fort itself. The paper reports on the new findings concerning the chronology of the Roman fort, and an essential part of the conclusions draws upon the results of numismatic research on recent coin finds from the site. Six years of fieldwork by a Polish-Georgian team have uncovered the remains of a possible horreum, built in the last decade of Nero’s reign, underlying a balneum constructed probably during Trajan’s Parthian war and rebuilt under Hadrian into a praetorium; a fine mosaic floor decorated with geometric motifs was found in one of the rooms of this early 2nd-century structure.
Źródło:
Polish Archaeology in the Mediterranean; 2021, 30(2); 289-306
1234-5415
Pojawia się w:
Polish Archaeology in the Mediterranean
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary report on the 2012 and 2013 excavation seasons at Jiyeh (Porphyreon): work in sector D (residential Quarter)
Autorzy:
Waliszewski, Tomasz
Antos, Magdalena
Jaworski, Piotr
Makowski, Piotr
Romaniuk, Marcin
Solecki, Rafał
Szymczak, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1727478.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
Jiyeh (Porphyreon)
houses
domestic architecture
Iron Age II
Persian–Hellenistic– Roman
mosaic
village/rural
Phoenicia
Opis:
Archeological work in the 2012 and 2013 seasons in Jiyeh (Porphyreon), which lies on the Phoenician coast north of ancient Sidon, was focused on reconstructing the history of settlement on the site. At least three phases were identified and dated to the Iron Age II, the Persian– Hellenistic–Roman period and late antiquity. The early dating of the functioning of the Christian basilica to the 4th–5th century AD was also confirmed in trial pits. The complex and unusual sewage installation discharging rainwater from the roofs and streets of the 5th-century settlement contributed important data for studies of late antique domestic architecture in the region.
Źródło:
Polish Archaeology in the Mediterranean; 2015, 24(1); 453-474
1234-5415
Pojawia się w:
Polish Archaeology in the Mediterranean
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies