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Advances on the $$\alpha _0$$-Nikiforov’s problem: positive semidefiniteness of $$A_{\alpha }(G)$$ and computation of $$\alpha _0(G)$$

Crossref DOI link: https://doi.org/10.1007/s40314-026-03653-0

Published Online: 2026-02-13

Published Print: 2026-07

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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