Geodesic
On Wallman compactifications of $T_0$-spaces and related questions
Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, no. 2 (2011), pp. 102-111

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We study the compactification of the Wallman–Shanin type of $T_0$-spaces. We have introduced the notion of compressed compactification and proved that any compressed compactification is of the Wallman–Shanin type. The problem of the validity of the equality $\omega(X\times Y)=\omega X\times\omega Y$ is examined. Two open questions have arisen. 
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     author = {L. I. Calmu\c{t}chi and M. M. Choban},
     title = {On {Wallman} compactifications of $T_0$-spaces and related questions},
     journal = {Buletinul Academiei de \c{S}tiin\c{t}e a Republicii Moldova. Matematica},
     pages = {102--111},
     publisher = {mathdoc},
     number = {2},
     year = {2011},
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     url = {http://geodesic.mathdoc.fr/item/BASM_2011_2_a8/}
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L. I. Calmuţchi; M. M. Choban. On Wallman compactifications of $T_0$-spaces and related questions. Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, no. 2 (2011), pp. 102-111. http://geodesic.mathdoc.fr/item/BASM_2011_2_a8/