An operator-theoretical study on the BCS-Bogoliubov model of superconductivity near absolute zero temperature

In the preceding papers present author gave another proof of existence and uniqueness solution to BCS-Bogoliubov gap equation for superconductivity from viewpoint operator theory, showed that is partially differentiable with respect temperature twice. Thanks these results, we can indeed differentiate thermodynamic potential twice so as obtain entropy specific heat at constant volume a superconductor. this paper show behavior near absolute zero thus-obtained entropy, heat, critical magnetic field theory since did not study it in papers. Here, an arbitrary, positive continuous function need be constant.