Researchers have long recognized that quantum communication systems would transmit quantum information more faithfully and be ...

During the latter part of the 20th century, string theory was put forward as a unifying theory of physics foundations. String theory has not, however, fulfilled expectations. That is why we are of the ...

School of Mathematics and Statistics, Hebei University of Economics and Business, Shijiazhuang 050061, P. R. China Center for Differential Equations and their Applications, Hebei University of ...

differential-algebraic equation (DAE) systems, and nonlinear algebraic systems: Warning to users who receive more than one of the individual packages at different times: Mixing old and new versions of ...

Department of Mathematics, Zhejiang Normal University, Jinhua 321004, Zhejiang, P. R. China Department of Mathematics, King Abdulaziz University, Jeddah 21598, Saudi Arabia Department of Mathematics ...