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This volume is dedicated to the memory of Michael Marinov, the theorist who, together with Felix Berezin, introduced the classical description of spin by anticommuting Grassmann variables. It contains papers and reviews by physicists and mathematicians written specifically for the book.

With the improvement of the alloying system of nickel-based superalloys, their microstructure becomes more complicated and the phase composition changes. The expediency of the presence of carbides in the structure of nickel-based superalloys (NBS) has been discussed for decades, but an attempt to replace carbides with other compounds leads to a decrease in the performance of the alloys due to a decrease in the thermodynamic stability of the phases. The elimination of carbides became possible only in single-crystal carbon-free alloys, which gave an increase in heat resistance due to the...