MathDB2 problems
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Conjecture on the finite-sign-change construction for infinitely many sign changes
Infinite-sign-change extension conjecture. The conclusion of Theorem 3 should hold when the left-hand side of changes sign infinitely many times, including the case…
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Uniqueness conjecture for linear homogeneous first-order PDE systems
Uniqueness conjecture. The system can have at most one solution locally satisfying the given initial condition.