Corrigendum to “Hierarchical derivation of orthogonal cross-section modes for thin-walled beams with arbitrary sections” [Thin-Walled Struct. 161 (2021) 107491] (Thin-Walled Structures (2021) 161, (S0263823121000525), (10.1016/j.tws.2021.107491))

The authors regret to request that the published paper be revised. Unfortunately, we found that there are some unsatisfactory parts in the published version. We kindly ask the publisher to consider revising the items below: 1. The quality of the figures in the published version is lower than those we submitted. Please use the original figures we attached. If needed, we can provide them again. 2. Eqs. (39–41, 47–50, 54–56): The summation index should be denoted below the Sigma to improve the readability 3. Eq. (9e): in [Formula presented]””, the derivative symbols’ sizes are different. 4. Eq. (3b): the sizes of the derivative symbols are different. 5. Eqs. (39–41, 47–50, 54–56): The “gap” between “symbols” and superscript “^” is a bit wide. We would like to ask for correction. We believe that the entire equations need to be reviewed by an experienced one because symbol inconsistencies are found in many equations; items 3–5 above are the examples of the case.