Author Information Submission: Manuscripts, in duplicate, may be submitted to the Managing Editor, or to a member of the Editorial Board for consideration in the Advances and Applications in Discrete Mathematics at the address of the Publisher [Papers prepared in formats, viz., .tex, .dvi, .pdf, .ps or .doc may be submitted electronically at the e-mail address: aadm@pphmj.com or kkazad@pphmj.com or arun@pphmj.com]. The paper must be typed only on one side in double spacing with a generous margin all round. An effort is made to publish a paper duly recommended by a referee within a period of six months. Articles received are immediately put the referees/members of the Editorial Board for their opinion who generally pass on the same in six week's time or less. In case of clear recommendation for publication, the paper is accommodated in an issue to appear next. Papers in duplicate with a letter of submission may be submitted at the following address: The Editors Advances and Applications in Discrete Mathematics PUSHPA PUBLISHING HOUSE Vijaya Niwas, 198, Mumfordganj Allahabad-211002, India Papers prepared in formats, viz., .tex, .dvi, .pdf, .ps or .doc may be submitted electronically at the e-mail address: aadm@pphmj.com or arun@pphmj.com or kkazad@pphmj.com Abstract and References: Authors are requested to provide an abstract of not more than 250 words, latest Mathematics Subject Classification, Keywords and phrases. Statements of Lemmas, Propositions and Theorems should be set in italics and references should be arranged in alphabetical order by the surname of the first author in the following style: Books [4] K. Kawakubo, The Theory of Transformation Groups, Oxford University Press, New York, 1991. Research papers [8] K. K. Azad and Gunjan Agrawal, On the projective cover of an orbit space, J. Austral. Math. Soc. 46 (1989), 308-312. [9] Kavita Srivastava, On singular H-closed extensions, Proc. Amer. Math. Soc. (to appear). Figures: Figures should be sent as: fair copy on paper, whenever possible scaled to about 200%, or as EPS file (Encapsulated PostScript). In addition, all figures and tables should be numbered and the appropriate space reserved in the text, with the insertion point clearly indicated. Copyright: It is assumed that the submitted manuscript has not been published and will not be simultaneously submitted or published elsewhere. By submitting a manuscript, the authors agree that the copyright for their articles is transferred to the publisher, if and when, the paper is accepted for publication. The publisher cannot take the responsibility of any loss of manuscript. Therefore, authors are requested to maintain a copy at their end. Proofs: One set of galley proofs of a paper will be sent to the author submitting the paper, unless requested otherwise, without the original manuscript, for corrections after the paper is accepted for publication on the basis of the recommendation of referees. Corrections should be restricted to typesetting errors; any other corrections may be charged to the authors. Authors are advised to check their proofs very carefully before return. Corrected proofs are to be returned to the publishers. Print Charges: Authors are requested to arrange print charges of their papers @ USD 40 per page for USA and Canada, and EURO 30 per page for rest of the world from their institutions/research grants, if any. However, for authors in India this charge is Rs. 500.00 per page. Reprints: Twenty-five reprints of a paper are provided to the authors ex-gratis. Additional sets of reprints may be ordered at the time of proof correction.

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