Browsing DIU Journals by Author "Hasan, Md. Nazmul"

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An Epidemic Model without Immunity

Hasan, Md. Nazmul; Azad, A.K (Daffodil International University, 2014-07-01)

An epidemic is usually a large and short term outbreak of disease. A disease is called endemic if it persists in the population for a long period of time. In this paper we introduce a model for some diseases which have ...
On Distributive Pseudo Complemented Lattice

Hasan, Md. Nazmul; Azad, Abul Kalam (Daffodil International University, 2014-07-01)

In lattice theory there are different classes of lattices known as variety of lattices. Distributive pseudo complemented lattice is one of the large variety. Throughout this paper We discuss pseudo complemented lattice. ...
SECTIONALLY PSEUDOCOMPLEMENTED RESIDUAL LATTICE

Rahman, Md. Zaidur; Azad, Md. Abul Kalam; Hasan, Md. Nazmul (Daffodil International University, 2011-07-01)

At first, we recall the basic concept, By a residual lattice is meant an algebra L = (L,¡ý,¡ü,.,o,0,1) such that (i) L = (L,¡ý,¡ü,0,1) is a bounded lattice, (ii) L = (L,.,1) is a commutative monoid, (iii) it satisfies ...

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