2 problems

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Type IIA/IIB mirror conjecture for compactifications on $G_2$ manifolds
Let $J$ be a compact $G_2$ manifold, and consider Type IIA and Type IIB string compactifications on $J$ . At the level described, both compactifications have the same matter content…
Conjectureopeng2-manifolds mirror-symmetry string-compactificationarXiv posted 2 days ago
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Equal-Betti-number mirror conjecture for $G_2$ manifolds
Equal-Betti-number mirror conjecture. Any two $G_2$ manifolds with the same value of $b^2+b^3$ should lead to mirror compactifications of Type II strings. The conjecture is invoked…
Conjectureopeng2-manifolds mirror-symmetry string-compactificationarXiv posted 2 days ago

Type IIA/IIB mirror conjecture for compactifications on G2G_2G2​ manifolds