\mathcal{G}',
                Hb: '\\mathbb{H}',
                Hc: '\\mathcal{H}',
                N: '\\mathbb{N}',
                P: '\\mathbb{P}',
                Q: '\\mathbb{Q}',
                R: '\\mathbb{R}',
                Rc: '\\mathcal{R}',
                V: '\\mathbb{V}',
                Var: '\\mathbb{V}',
                c: '\\textsf{c}',
                T: '\\textsf{T}',
                Tb: '\\mathbb{T}',
                F: '\\mathcal{F}',
                X: '\\mathcal{X}',
            