78A60 Lasers, masers, optical bistability, nonlinear optics [See also <a href="#code:81V80">81V80</a>]

78A70 Biological applications [See also <a href="#code:91D30">91D30</a>, <a href="#code:92C30">92C30</a>]

78A97 Mathematically heuristic optics and electromagnetic theory (must also be assigned at least one other classification number in this section)

78M12 Finite volume methods, finite integration techniques

78M99 None of the above, but in this section

80-XX Classical thermodynamics, heat transfer {For thermodynamics of solids, see <a href="#code:74A15">74A15</a>}

80-00 General reference works (handbooks, dictionaries, bibliographies, etc.)

80-01 Instructional exposition (textbooks, tutorial papers, etc.)

80-02 Research exposition (monographs, survey articles)

80-03 Historical (must also be assigned at least one classification number from Section 01)

80-04 Explicit machine computation and programs (not the theory of computation or programming)

80-06 Proceedings, conferences, collections, etc.

80A10 Classical thermodynamics, including relativistic

80A17 Thermodynamics of continua [See also <a href="#code:74A15">74A15</a>]

80A22 Stefan problems, phase changes, etc. [See also <a href="#code:74Nxx">74Nxx</a>]

80A32 Chemically reacting flows [See also <a href="#code:92C45">92C45</a>, <a href="#code:92E20">92E20</a>]

80A50 Chemistry (general) [See mainly <a href="#code:92Exx">92Exx</a>]

80A99 None of the above, but in this section

80M99 None of the above, but in this section

81-00 General reference works (handbooks, dictionaries, bibliographies, etc.)

81-01 Instructional exposition (textbooks, tutorial papers, etc.)

81-02 Research exposition (monographs, survey articles)

81-03 Historical (must also be assigned at least one classification number from Section 01)

81-04 Explicit machine computation and programs (not the theory of computation or programming)

81-06 Proceedings, conferences, collections, etc.

81P10 Logical foundations of quantum mechanics; quantum logic [See also <a href="#code:03G12">03G12</a>, <a href="#code:06C15">06C15</a>]