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Record
Title
Projective Area-Invariants as an Extension of the Cross-Ratio
Type
Report
Publ. year
1989
Author/s
Nielsen, Lars; Sparr, Gunnar
Department/s
Mathematics (Faculty of Engineering); Department of Automatic Control
In LUP since
2016-04-01
Downloads

Total This Year This Month
577 36 1
Downloads per country

United States of America 260 (45%)
China 33 (6%)
Germany 30 (5%)
Sweden 18 (3%)
United Kingdom of Great Britain and Northern Ireland 18 (3%)
Russian Federation 16 (3%)
France 15 (3%)
Singapore 14 (2%)
Finland 12 (2%)
South Korea 12 (2%)
India 11 (2%)
Czechia 10 (2%)
Malaysia 9 (2%)
Greece 8 (1%)
Italy 7 (1%)
Turkiye 7 (1%)
Taiwan (China) 7 (1%)
Switzerland 6 (1%)
Hong Kong (China) 6 (1%)
Brazil 6 (1%)
Ireland 4 (1%)
Philippines 4 (1%)
Hungary 4 (1%)
Romania 4 (1%)
Poland 4 (1%)
Norway 3 (1%)
Belgium 3 (1%)
Japan 3 (1%)
Spain 3 (1%)
Nepal 3 (1%)
Netherlands (Kingdom of the) 3 (1%)
Viet Nam 2 (0%)
South Africa 2 (0%)
Thailand 2 (0%)
Portugal 2 (0%)
Iran 2 (0%)
Indonesia 2 (0%)
Canada 2 (0%)
Israel 2 (0%)
Morocco 2 (0%)
Denmark 2 (0%)
Bahrain 1 (0%)
Peru 1 (0%)
Ukraine 1 (0%)
Senegal 1 (0%)
Austria 1 (0%)
Libya 1 (0%)
Serbia 1 (0%)
Tunisia 1 (0%)
Ecuador 1 (0%)
Chile 1 (0%)
Australia 1 (0%)
Bangladesh 1 (0%)
Mexico 1 (0%)
Costa Rica 1 (0%)
About
The download statistics shown here have been collected since the launch of LUP in October 2007 and are updated every night. Statistics are available for all records with open access fulltexts. Efforts have been made to exclude downloads by robots and track irregular download activities.

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The information on downloads per country is based on the geolocation of IP addresses and may not be completely accurate. The statistics presented here may also change retroactively when the calculation process is improved to provide more accurate results.

Statistics Last Updated
Fri Jul 11 08:38:15 2025