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机译:Vacuum polarization by a composite topological defect
Univ Fed Paraiba, Dept Fis, CCEN, BR-58059970 Joao Pessoa, Paraiba, Brazil;
Yerevan State Univ, Dept Phys, Yerevan 375025, Armenia;
CONCENTRIC SPHERICAL-SHELLS; GLOBAL MONOPOLE SPACETIME; CASIMIR DENSITIES; EXTRA DIMENSIONS; QUANTUM-FIELD; HIERARCHY; TIME;