author = "Gonzalez Alarcon, Walter Dem{\'e}trio and Parker, E. N. and 
                         Mozer, F. S. and Vasyliunas, V. M. and Pritchett, P. L. and 
                         Karimabadi, H. and Cassak, P. A. and Scudder, J. D. and Yamada, M. 
                         and Kulsrud, R. M. and Koga, Daiki",
                title = "Fundamental concepts associated with magnetic reconnection",
            booktitle = "Magnetic reconnection: concepts and applications",
            publisher = "Springer",
                 year = "2016",
               editor = "Gonzalez Alarcon, Walter Demetrio and Parker, Eugene",
                pages = "1--32",
              address = "New York",
             keywords = "Magnetic reconnection concepts Magnetic field lines Frozen-in 
                         condition Magnetic diffusion Generalized Ohmís law Global 
                         equilibria Magnetic energy transfer Magnetic reconnection onset 
                         Magnetospheric reconnection Magnetic reconnection separatrices.",
             abstract = "The chapter starts with a discussion about the importance of the 
                         concept of magnetic field lines in space plasmas and magnetic 
                         reconnection, followed by presentations on: (a) the meaning and 
                         validity of empirical constructs related with magnetic 
                         reconnection research, such as: moving magnetic field lines, 
                         frozen-in condition and diffusion region of reconnection; and (b) 
                         experimental evidence of the diffusion region and related 
                         energetics. Next, aims to link external (MHD) with internal 
                         (non-MHD) regions of reconnection are discussed in association 
                         with the so-called Axford conjecture, followed by short 
                         presentations on: (a) global equilibria in reconnection; and (b) 
                         the role of the separatrices in global aspects of reconnection. In 
                         the last section, we present additional discussion about the 
                         concept of diffusion region and about the two fundamental 
                         questions associated with magnetic reconnection reviewed in this 
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {University 
                         of Chicago} and {University of California} and {Max-Plant Institut 
                         f{\"u}r Sonnensystemforschung} and {University of California} and 
                         SciberQuest and {West Virginia University} and {University of 
                         Iowa} and {Princeton University} and {Princeton University} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                  doi = "10.1007/978-3-139-26432-5_1",
                  url = "http://dx.doi.org/10.1007/978-3-139-26432-5_1",
                 isbn = "978-3-319-26430-1 and 978-3-319-26432-5",
             language = "en",
          seriestitle = "Astrophysics and Space Science",
               volume = "427",
        urlaccessdate = "25 nov. 2020"