Solved and unsolved problems

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Balaban, A.T. (1993e). Solved and Unsolved Problems in Chemical Graph Theory. Ann.Disc. Math., 55,109-126. 

Trinajstic, N., Klein, D.J. and Randic, M. (1986a). On Some Solved and Unsolved Problems of Chemical Graph Theory. Int.J.Quantum Chem.Quant.Chem.Symp., 20, 699-742. 

Davies, B. H. Solved and unsolved problems of carotenoid formation. Pure and Applied Chem. 51, 623 (1979). 

N. Trinajstic, D J. Klein, and M. Randic, On some solved and unsolved problems of chemical... 

W. Kutzelnigg. Solved and unsolved problems in relativistic quantum chemistry. Chem. Phys., 395 (2012) 16-34. 

In this book, we review several solved and unsolved problems in structure-property-activity studies, in theoretical chemistry, and in bioinformatics, which are related to the structure-property relationship in general. We have elected to discuss and elaborate on a number of problems, whether solved or unsolved, which appear to us to have not been widely or well known. Among the selected problems we have included, in particular, some problems that relate to the following four subjects ... 

In view that the main tool to be used here is mathematics, it seems appropriate as an introduction to review a selection of solved and unsolved problems in mathematics. We do not assume familiarity of readers with details of mathematics, discrete or not, and what we need we will clearly explain. We will start with a few problems that have been considered in antiquity, followed with a few so-called famous problems, the problems that can be easily understood even by laymen, but the solving of which may cause even outstanding professionals to have difficulties. In addition, we have selected a few illustrious problems. According to Webster s Dictionary of Synonyms Antonyms [8], illustrious stands for something enduring and merited honor and glory. We feel that the selected problems deserve such a title. 

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