For systems of matrix equations of the form $$U' = A(t, U, V)V,\quad V' = - B(t, U, V)$$ it is shown here that the oscillation problem can be reduced to the ...
The purpose of this paper is to establish conditions which imply that the third order linear differential equation with nonnegative coefficients defined on an infinite interval will fail to be ...
An international group of astronomers led by a Harvard Ph.D. student reported their discovery that the Radcliffe Wave — a 9,000 light-year-long gaseous structure in the Milky Way — moves in an ...
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