讲义: Algebraic Topology/preamble

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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%         Defintions        %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%         Functions         %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\newcommand{\CE}{Chevalley-Eilenberg }
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\newcommand{\prodl}{\prod\limits}
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\newcommand{\Ol}{\mathcal O_{loc}}
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\newcommand{\MC}{Maurer-Cartan }
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%%%%%%%%%%%%%%%%%%%%%%     Math    Operators         %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\newcommand{\Chain}{\mathsf{Ch}_\bullet}
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\newcommand{\Ch}{\mathsf{Ch}}


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\newcommand{\hpTpP}{\underline{h\mathbf{\mathscr{T}P}_{\star}}}

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\newcommand{\CG}{\mathsf{CG}}

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\newcommand{\Forget}{\operatorname{Forget}}


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\newcommand{\Tot}{\operatorname{Tot}}

\newcommand{\Gr}{\operatorname{Gr}}

\newcommand{\Ob}{\operatorname{Ob}}



\newcommand{\Cat}{\mathsf{Cat}}
\newcommand{\Cov}{{\text{Cov}}}
\newcommand{\Fun}{\mathsf{Fun}}
\newcommand{\Orb}{Orb}
\newcommand{\kTop}{\op{\mathsf{CGTop}}}
\newcommand{\kHTop}{\op{\mathsf{CGHaus}}}

\newcommand{\CW}{\op{\mathsf{CW}}}
\newcommand{\hCW}{\op{\mathsf{hCW}}}


\newcommand{\Map}{\operatorname{Map}}


\newcommand{\Ve}{Vect}


\def\rel{\;\operatorname{rel}}
\newcommand{\Aut}{\operatorname{Aut}}

\newcommand{\dprime}{{\prime \prime}}

\newcommand{\nn}{node{$\bullet$}}
\newcommand{\snn}{node{\footnotesize{$\bullet$}}}

\newcommand{\MCG}{\operatorname{MCG}} % mapping class group
\newcommand{\Dehn}[1]{\mathbf{D}_{#1}}
\newcommand{\SL}{\operatorname{SL}}
\newcommand{\GL}{\operatorname{GL}}
\newcommand{\PSL}{\operatorname{PSL}}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%  Theorems type enviroments %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\newtheorem{cor}[thm]{Corollary}
\newtheorem{conj}[thm]{Conjecture}
\newtheorem{prob}[thm]{Problem}
\newtheorem*{claim}{Claim}

\theoremstyle{definition}
\newtheorem{defn}[thm]{Definition}
\newtheorem{notn}[thm]{Notation}

\theoremstyle{remark}
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\newtheorem{ex}[thm]{Exercise}
\newtheorem{rmk}[thm]{Remark}
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\newtheorem{warn}[thm]{Warning}

\def\Br{\operatorname{Br}}
\def\<{\langle}
\def\>{\rangle}
\newcommand{\Conf}{\operatorname{Conf}}

%=========================================================
% Notation
%=========================================================

%=========================================================Bary
\newcommand\Bary[3]{% n, a, b, c
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	\draw[blue,very thick] ($(#3)!.6666!(#1#2)$) (#1)to(#2)to(#3)to(#1);
	\draw[blue!50](#1)\nn(#2)\nn(#3)
	\nn($(#2)!.5!(#3)$)\nn($(#1)!.5!(#3)$)\nn($(#2)!.5!(#1)$)
	\nn($(#3)!.6666!(#1#2)$)\nn;
}

\newcommand\bary[3]{% n, a, b, c
	\draw[dashed,cyan]
	(#1) to($(#2)!.5!(#3)$)
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	(#3) to($(#2)!.5!(#1)$)
	coordinate (#1#2);
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	edge($(#2)!.5!(#3)$)edge($(#1)!.5!(#3)$)edge($(#2)!.5!(#1)$)
	edge($(#3)!.6666!(#1#2)$);
	\draw[dashed,thick,cyan] ($(#3)!.6666!(#1#2)$) (#1)to(#2)to(#3)to(#1);
	\draw[cyan!50](#1)\nn(#2)\nn(#3)
	\nn($(#2)!.5!(#3)$)\nn($(#1)!.5!(#3)$)\nn($(#2)!.5!(#1)$)
	\nn($(#3)!.6666!(#1#2)$)\nn;
}

\newcommand\bbb[3]{% n, a, b, c
	\draw[blue, thick]
	(#1)to($(#2)!.5!(#3)$)
	(#2)to($(#1)!.5!(#3)$)
	(#3)to($(#2)!.5!(#1)$)
	coordinate (#1#2);
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	\draw[cyan](#1)\nn(#2)\nn(#3)
	\nn($(#2)!.5!(#3)$)\nn($(#1)!.5!(#3)$)\nn($(#2)!.5!(#1)$)
	\nn($(#3)!.6666!(#1#2)$)\nn;
}

\newcommand\bb[3]{% n, a, b, c
	\draw[blue, thick]
	(#1)to($(#2)!.5!(#3)$)coordinate (#2#3)
	(#2)to($(#1)!.5!(#3)$)coordinate (#3#1)
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	\draw[blue!50,very thick] ($(#3)!.6666!(#1#2)$)coordinate (q) (#1)to(#2)to(#3)to(#1);
	\bbb{#1}{#1#2}{q}\bbb{#2}{#1#2}{q}
	\bbb{#2}{#2#3}{q}\bbb{#3}{#2#3}{q}
	\bbb{#3}{#3#1}{q}\bbb{#1}{#3#1}{q}
}

\newcommand\BBc[3]{% n, a, b, c
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	(#1)to($(#2)!.5!(#3)$)coordinate (#2#3)
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	\draw[blue!50,very thick] ($(#3)!.6666!(#1#2)$)coordinate (#1#2#3) (#1)to(#2)to(#3)to(#1);
	\bb{#1}{#1#2}{#1#2#3}\bb{#2}{#1#2}{#1#2#3}
	\bb{#2}{#2#3}{#1#2#3}\bb{#3}{#2#3}{#1#2#3}
	\bb{#3}{#3#1}{#1#2#3}\bb{#1}{#3#1}{#1#2#3}
}

\newcommand\BFour[3]{% n, a, b, c
	\draw[blue, thick]
	(#1)to($(#2)!.5!(#3)$)coordinate (#2#3)
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	\draw[blue!50,very thick] ($(#3)!.6666!(#1#2)$)coordinate (#1#2#3) (#1)to(#2)to(#3)to(#1);
	\BBc{#1}{#1#2}{#1#2#3}\BBc{#2}{#1#2}{#1#2#3}
	\BBc{#2}{#2#3}{#1#2#3}\BBc{#3}{#2#3}{#1#2#3}
	\BBc{#3}{#3#1}{#1#2#3}\BBc{#1}{#3#1}{#1#2#3}
}

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