منابع مشابه
More Equienergetic Signed Graphs
The energy of signed graph is the sum of the absolute values of the eigenvalues of its adjacency matrix. Two signed graphs are said to be equienergetic if they have same energy. In the literature the construction of equienergetic signed graphs are reported. In this paper we obtain the characteristic polynomial and energy of the join of two signed graphs and thereby we give another construction ...
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Two digraphs of same order are said to be skew-equienergetic if their skew energies are equal. One of the open problems proposed by Li and Lian was to construct non-cospectral skew-equienergetic digraphs on n vertices. Recently this problem was solved by Ramane et al. In this paper, we give some new methods to construct new skew-equienergetic digraphs.
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In many developed countries the standard annuity mortgage is increasingly being supplanted by mortgages with nonstandard features, such as longer terms or interest-only payments. Many of these new features aim to reduce the borrower’s monthly debt service in the initial period of the loan. This reflects both borrower demand (as house-price rises have led to affordability problems) and regulator...
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ژورنال
عنوان ژورنال: Chemistry - A European Journal
سال: 2009
ISSN: 0947-6539,1521-3765
DOI: 10.1002/chem.200802402