It is shown that the calculation of the sum of the spaces of the K‐Peetre interpolation method can be reduced to the calculation of the sum of the cones of the concave functions included by the parameter in the definition of the spaces of the K‐Peetre interpolation method. As an example, a new extrapolation theorem for operators in Lipschitz spaces is obtained.

中文翻译：

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实插值K方法的空间总和的计算

结果表明，K- Peetre插值方法的空间总和的计算可以简化为K- Peetre的空间定义中参数所包含的凹函数的圆锥之和的计算。插值方法。作为示例，获得了Lipschitz空间中算子的新外推定理。