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Table 1 Case analysis on the values of variables \(y_{i,s}\) and \(y_{j,s}\)

From: Complexity and algorithms for copy-number evolution problems

  \(a_{i, j, s}\) \(d_{i, j, s}\) Additional
(a) \(y_{i, s} = 0 \wedge y_{j, s} = 0\) \(\le e\) \(\le e\)  
(b) \(y_{i, s} \ne 0 \wedge y_{j, s} \ne 0\) \(\le e\) \(< y_{i, s}\) \(y_{j,s} + d_{i,j,s} = y_{i,s} + a_{i,j,s}\)
(c) \(y_{i, s} \ne 0 \wedge y_{j, s} = 0\) \(\le e\) \(\ge y_{i, s}\)  
   \(\le e\)  
(d) \(y_{i, s} = 0 \wedge y_{j, s} \ne 0\) Infeasible Infeasible Infeasible