Family roots
نویسندگان
چکیده
منابع مشابه
The roots of the Wang academic family tree.
As defined in the Chemical Genealogy database (Chemical Genealogy Database), ‘‘A professional genealogy (as opposed to a family genealogy) traces a person’s intellectual line of descent via one’s Ph.D. advisor or mentor for one’s highest non-honorary degree.’’ The professional genealogy for Professor Daniel I. C. Wang of the Department of Chemical Engineering of the Massachusetts Institute of T...
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There are several methods for solving a nonlinear algebraic equation having roots of a given multiplicity m. Here we compare a family of Laguerre methods of order three as well as two others of the same order and show that Euler–Cauchy’s method is best. We discuss the conjugacy maps and the effect of the extraneous roots on the basins of attraction. Published by Elsevier Inc.
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Asymmetric hydrogenation of activated alkenes catalysed by ene-reductases from the old yellow enzyme family (OYEs) leading to chiral products is of potential interest for industrial processes. OYEs’ dependency on the pyridine nucleotide coenzyme can be circumvented through established artificial hydride donors such as nicotinamide coenzyme biomimetics (NCBs). Several OYEs were found to exhibit ...
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In this paper, we present a new family of multipoint iterative methods for finding multip le zeros of nonlinear equations. Per iterat ion the new method requires three evaluations of functions and one of its first derivative. We have analysed and proved the order of convergence of the new methods. Finally, the numerical examples demonstrate that the proposed methods are superior to the existing...
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For any positive integer n, a new family of periodic functions in power series form and of period n is used to solve in closed form a class of polynomial equations of order n. The n roots are the values of the appropriate function from that family taken at 0, 1, ..., n − 1. 1 Background For centuries mathematicians have sought closed-form expressions for the roots of polynomial equations of arb...
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ژورنال
عنوان ژورنال: Nature
سال: 2007
ISSN: 0028-0836,1476-4687
DOI: 10.1038/448145a