TY - BOOK ID - 134748823 TI - Elliptic, hyperbolic and mixed complex equations with parabolic degeneracy PY - 2008 SN - 1281938041 9786611938048 9812779434 9789812779434 9781281938046 6611938044 9812779426 9789812779427 PB - Singapore Hackensack, NJ World Scientific DB - UniCat KW - Differential equations, Elliptic. KW - Differential equations, Hyperbolic. KW - Differential equations, Partial. KW - Boundary value problems. UR - https://www.unicat.be/uniCat?func=search&query=sysid:134748823 AB - In the recent half-century, many mathematicians have investigated various problems on several equations of mixed type and obtained interesting results, with important applications to gas dynamics. However, the Tricomi problem of general mixed type equations of second order with parabolic degeneracy has not been completely solved, particularly the Tricomi and Frankl problems for general Chaplygin equation in multiply connected domains posed by L Bers, and the existence, regularity of solutions of the above problems for mixed equations with non-smooth degenerate curve in several domains posed b ER -