In this issue (12 articles)

1. 

   OriginalPaper

   On groups with large character degree sums

   Hung P. Tong-Viet Pages 401-405

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2. 

   OriginalPaper

   Certain monomial characters of p′-degree

   Gabriel Navarro, Carolina Vallejo Pages 407-411

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3. 

   OriginalPaper

   A note on the size of the nilpotent residual in finite groups

   Xiuyun Guo, Lü Gong Pages 413-416

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4. 

   OriginalPaper

   Diameters of Chevalley groups over local rings

   Oren Dinai Pages 417-424

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5. OriginalPaper

   Fixed points of automorphisms preserving the length of words in free solvable groups

   Witold Tomaszewski Pages 425-432

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6. 

   OriginalPaper

   The average size of Ramanujan sums over quadratic number fields

   Werner Georg Nowak Pages 433-442

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7. 

   OriginalPaper

   Numerically hypercyclic polynomials

   Sung Guen Kim, Alfredo Peris, Hyun Gwi Song Pages 443-452

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8. 

   OriginalPaper

   Absence of gauge-invariant functionals on spectral C*-algebras

   Remus Floricel Pages 453-456

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9. 

   OriginalPaper

   Sharp weighted bounds without testing or extrapolation

   Kabe Moen Pages 457-466

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10. 

    OriginalPaper

    Generation and commutation properties of the Volterra operator

    A. F. M. ter Elst, Manfred Sauter, Jaroslav Zemánek Pages 467-479

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11. 

    OriginalPaper

    Nonlinear partial differential equations associated with binormal motions of constant torsion curves in Minkowski 3-space

    Chuanyou Xu, Xifang Cao Pages 481-492

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12. 

    OriginalPaper

    Stability index jump for constant mean curvature hypersurfaces of spheres

    Oscar Perdomo, Aldir Brasil Jr Pages 493-500

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