030. On semi-generalized semi-preclosed sets in topological spaces

Math Journal: Bull Gauthi Un. Math. Ass., The Bulletin, GUMA. Índia,  6 (1999), 11-25.
Authors: Caldas, M. and  Saraf, R.K.

029. Fuzzy semi preopen sets

Math. Journal: Appl. Sci. Period. J., India, 1 (1999), 22-25
Authors: Caldas, M., and Saraf, R.K.

028. Products of holomorphically semibornological spaces

Math. Journal: Bull. Inst. of Math. Acad. Sinica, Republic of China 27 (1999), 137-145.
Caldas, M.

027. On spaces with hereditarily compact $\alpha$-topologies

Math. Journal: Acta Math. Hungar., Hungary, 82 (1999), 121-129.
Authors: Caldas, M. and  Dontchev, J.

026. On a characterization of polynomially barrelled spaces

Math. Journal: Glasnik Matematicki , Croatia, 33 (1998), 93-96.
Authors: Caldas M. and  Pombo D.

025. Una analogia no-arquimediana de los espacios C-infratonelados

Math. Journal: Rev.Colomb. de Mat., Colombia, 31 (1997), 63-70.
Caldas, M.

024. A Separation axiom between semi-To and semi-T1

Math. Journal:  Mem. Fac. Sci.,Kochi Univ., Ser. A. Japan,  ISSN 0389-0252, 18 (1997), 37-42.
Authors: Caldas, M.

023. La intersección arbitraria de una familia de subconjuntos abiertos…

Full Title: La intersección arbitraria de una familia de subconjuntos abiertos con la propiedad s-localmente finita es semi-abierta.
Math. Journal: Pro-Math., Peru, Vol. 10 (1996), 35-42.
Authors: Caldas, M.

022. Further results on generalized open mapping in topological spaces

Math. Journal: Bull. Calcutta Math. Soc. India, ISSN 0008-0659.  88 (1996), 27-32.
Authors: Caldas, M.


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