Results 31 to 40 of about 130,009 (295)

Post-1800 copies of Atlas Silesiae: may we talk about the second edition?

open access: yesPolish Cartographical Review, 2023
In the earlier paper (Paprotny, 2022b) I have presented all known states of maps encountered in the 1750 (i.e. 1752) edition of Atlas Silesiae, together with the composition of several Atlas copies from this edition (in terms of states of included maps).
Paprotny Zbigniew
doaj   +1 more source

Spatial distribution of scalar seismic moment release in Italy (1983-1996): seismotectonic implications for the Apennines

open access: yesAnnals of Geophysics, 1997
We analyzed the distribution of seismic moment in Italy, computed from instrumental seismicity recorded by the Italian National Seismic Network in the past 14 years, to map the areas where seismic deformation processes have been active in this time ...
R. Azzara, B. Castello, G. Selvaggi
doaj   +1 more source

Calabi–Yau structures on (quasi-)bisymplectic algebras

open access: yesForum of Mathematics, Sigma, 2023
We show that relative Calabi–Yau structures on noncommutative moment maps give rise to (quasi-)bisymplectic structures, as introduced by Crawley-Boevey–Etingof–Ginzburg (in the additive case) and Van den Bergh (in the multiplicative case). We prove along
Tristan Bozec   +2 more
doaj   +1 more source

Digitised Maps in the Danish Map Collection

open access: yesLiber Quarterly: The Journal of European Research Libraries, 2005
As in the rest of the library world, The Royal Library in Copenhagen is in the process of digitising its collections. At the moment we are mainly working on the handwritten manual catalogue - but digitising the material is also a major working assignment.
Annie Lenschau-Teglers   +1 more
doaj   +1 more source

Morphometric Parameters of the Water Bodies of Bagry Wielkie and Bagry Małe in the Biodiversity Context

open access: yesGeoinformatica Polonica, 2023
The article presents the results of nature-based and geodetic query of two neighbouring endorheic borrow pits, i.e., Bagry Wielkie and Staw Płaszowski (Bagry Małe), situated almost in the centre of ...
Rafał Gawałkiewicz, Aleksandra Wagner
doaj   +1 more source

Fitting traffic traces with discrete canonical phase type distributions and Markov arrival processes

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2014
Recent developments of matrix analytic methods make phase type distributions (PHs) and Markov Arrival Processes (MAPs) promising stochastic model candidates for capturing traffic trace behaviour and for efficient usage in queueing analysis.
Meszáros András   +2 more
doaj   +1 more source

Mean Curvature Flow, Orbits, Moment Maps [PDF]

open access: yes, 2002
Given a compact Riemannian manifold together with a group of isometries, we discuss MCF of the orbits and some applications: eg, finding minimal orbits. We then specialize to Lagrangian orbits in Kaehler manifolds.
Pacini, Tommaso, Pacini, T
core   +1 more source

Some preliminary results of a worldwide seismicity estimation: a case study of seismic hazard evaluation in South America

open access: yesAnnals of Geophysics, 2000
Global data have been widely used for seismicity and seismic hazard assessment by seismologists. In the present study we evaluate worldwide seismicity in terms of maps of maximum observed magnitude (Mmax), seismic moment (M 0 ) and seismic moment rate (M
C. V. Christova, T. M. Tsapanos
doaj   +1 more source

Moment maps at the quantum level [PDF]

open access: yes, 1993
We introduce the notion of moment maps for quantum groups acting on their module algebras. When the module algebras are quantizations of Poisson manifolds, we prove that the construction at the quantum level is a quantization of that at the semi ...
Jiang-Hua Lu, Lu, JH
core   +1 more source

A Line-Surface Integrated Algorithm for Underwater Terrain Matching [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2019
The current underwater terrain surface matching algorithm, which uses Hu moment as the similarity index, cannot gain accurate location due to the algorithm's disadvantage in detecting slight differences.
Lihua ZHANG,Xianpeng LIU,Shuaidong JIA,Yan SHI
doaj   +1 more source

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