We give examples of failure of the existence of co-fibered products in the category of algebraic curves.
@article{bwmeta1.element.doi-10_2478_s11533-009-0030-7, author = {Fedor Bogomolov and Yuri Tschinkel}, title = {Co-fibered products of algebraic curves}, journal = {Open Mathematics}, volume = {7}, year = {2009}, pages = {382-386}, zbl = {1186.14029}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_2478_s11533-009-0030-7} }
Fedor Bogomolov; Yuri Tschinkel. Co-fibered products of algebraic curves. Open Mathematics, Tome 7 (2009) pp. 382-386. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_2478_s11533-009-0030-7/
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