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We show that the coefficients $A=[A_{jk}]$, $B=(B_j)$ and $q$ can be recovered from the associated Dirichlet-to-Neumann data on the boundary. Note that, this result shows an example of"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1706.03823","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"math.AP","submitted_at":"2017-06-12T19:50:27Z","cross_cats_sorted":[],"title_canon_sha256":"75fbbbf88ed8391321aa778220bff891f587124b3dc5c6b2fa7f3dfbad63d39f","abstract_canon_sha256":"8f587ae8950d524e5741abb32fe48bc4b7639273dc5c115343de9371ee327f82"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:05.499256Z","signature_b64":"zENbdnBaUC4PTcjy/ZjlXZDQYpUtbPA6NrvNMQUetOyKMo9XX8daIfsCi3NTsna0DnR11KjDQpuwivlCIXuLBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f68f907a8658177a84f38bc67bb4b30cb858884447b4b7d31626dc1b0106f156","last_reissued_at":"2026-05-18T00:15:05.498631Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:05.498631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Inverse boundary value problem of determining up to second order tensors appear in the lower order perturbations of the polyharmonic operator","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AP","authors_text":"Sombuddha Bhattacharyya, Tuhin Ghosh","submitted_at":"2017-06-12T19:50:27Z","abstract_excerpt":"We consider the following perturbed polyharmonic operator $\\Lc(x,D)$ of order $2m$ defined in a bounded domain $\\Omega \\subset \\mathbb{R}^n, n\\geq 3$ with smooth boundary, as \\begin{equation*} \\Lc(x,D) \\equiv (-\\Delta)^m + \\sum_{j,k=1}^{n}A_{jk} D_{j}D_{k} + \\sum_{j=1}^{n}B_{j} D_{j} + q(x), \\end{equation*} where $A$ is a symmetric $2$-tensor field, $B$ and $q$ are vector field and scalar potential respectively. We show that the coefficients $A=[A_{jk}]$, $B=(B_j)$ and $q$ can be recovered from the associated Dirichlet-to-Neumann data on the boundary. 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