ON THE WORKING OF SHARP GRADIENTS AND SHARP CURVES ON RAILWAYS.
نویسندگان
چکیده
منابع مشابه
Sharp Bounds on the PI Spectral Radius
In this paper some upper and lower bounds for the greatest eigenvalues of the PI and vertex PI matrices of a graph G are obtained. Those graphs for which these bounds are best possible are characterized.
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ژورنال
عنوان ژورنال: Minutes of the Proceedings of the Institution of Civil Engineers
سال: 1867
ISSN: 1753-7843
DOI: 10.1680/imotp.1867.23164