We generalize some of the results in our previous paper "Cohomology and extension problems for semi q-coronae", and prove a bump-lemma for closed sets in semi 1-coronae. From this we obtain some finite cohomology results and an extension theorem for analytic subsets in 1-coronae.
Cohomology of semi 1-coronae and extension of analytic subsets / SARACCO A.; TOMASSINI GIUSEPPE. - In: BULLETIN DES SCIENCES MATHEMATIQUES. - ISSN 0007-4497. - 132(2008), pp. 232-245. [10.1016/j.bulsci.2007.09.005]