76S99 None of the above, but in this section

76T10 Liquid-gas two-phase flows, bubbly flows

76T25 Granular flows [See also <a href="#code:74C99">74C99</a>, <a href="#code:74E20">74E20</a>]

76T99 None of the above, but in this section

76U99 None of the above, but in this section

76Vxx Reaction effects in flows [See also <a href="#code:80A32">80A32</a>]

76V05 Reaction effects in flows [See also <a href="#code:80A32">80A32</a>]

76V99 None of the above, but in this section

76W99 None of the above, but in this section

76Xxx Ionized gas flow in electromagnetic fields; plasmic flow [See also <a href="#code:82D10">82D10</a>]

76X05 Ionized gas flow in electromagnetic fields; plasmic flow [See also <a href="#code:82D10">82D10</a>]

76X99 None of the above, but in this section

76Yxx Quantum hydrodynamics and relativistic hydrodynamics [See also <a href="#code:82D50">82D50</a>, <a href="#code:83C55">83C55</a>, <a href="#code:85A30">85A30</a>]

76Y05 Quantum hydrodynamics and relativistic hydrodynamics [See also <a href="#code:82D50">82D50</a>, <a href="#code:83C55">83C55</a>, <a href="#code:85A30">85A30</a>]

76Y99 None of the above, but in this section

76Zxx Biological fluid mechanics [See also <a href="#code:74F10">74F10</a>, <a href="#code:74L15">74L15</a>, <a href="#code:92Cxx">92Cxx</a>]

76Z05 Physiological flows [See also <a href="#code:92C35">92C35</a>]

76Z99 None of the above, but in this section

78-XX Optics, electromagnetic theory {For quantum optics, see <a href="#code:81V80">81V80</a>}

78-00 General reference works (handbooks, dictionaries, bibliographies, etc.)

78-01 Instructional exposition (textbooks, tutorial papers, etc.)

78-02 Research exposition (monographs, survey articles)

78-03 Historical (must also be assigned at least one classification number from Section 01)

78-04 Explicit machine computation and programs (not the theory of computation or programming)

78-06 Proceedings, conferences, collections, etc.

78A45 Diffraction, scattering [See also <a href="#code:34E20">34E20</a> for WKB methods]