... empty, the least core isactually not (for example the quadratic taxation case, or the piecewise linear taxation case). Once the non-emptiness of least core is established, only then the analysis ... hn], and 0, if x ∈ [1 − hn, 1]. In consequence,10 The least core in fixed-income taxation models: a brief mathematical inspectionPaula Curt1, Cristian M Litan1and Diana Andrada Filip∗1,21Department ... the points A or C, and the values of the distance at the points A, C are greater than the values of the distance at the points E, H, I, we get the desiredstrict inequality and this part of the...