documentclass[12pt, reqno]{amsart}
    usepackage{amsmath, amsthm, amscd, amsfonts, amssymb, graphicx, color}
     usepackage[bookmarksnumbered, colorlinks, plainpages]{hyperref}
    hypersetup{colorlinks=true,linkcolor=red, anchorcolor=green, citecolor=cyan, urlcolor=red, filecolor=magenta, pdftoolbar=true}

      textheight 22.5truecm textwidth 15truecm
     setlength{oddsidemargin}{0.25in}setlength{evensidemargin}{0.25in}
      renewcommand{baselinestretch}{1.25}
      setlength{topmargin}{-.5cm}



    begin{document}
       title[Title]{Title}

     author[Author one, Author two , Author three] {Author one$^{1}$,  Author two$^{2}$ and Author three$^{3}$ }

     address{$^{1}$ Address of first author.}
       email{textcolor[rgb]{0.00,0.00,0.84}{one@gmail.com}}
        address{$^{2}$ Address of second author.}
       email{textcolor[rgb]{0.00,0.00,0.84}{two@hotmail.com}}
      address{$^{3}$ Address of third author.}
        email{textcolor[rgb]{0.00,0.00,0.84}{three@yahoo.com}}
     subjclass[2010]{46C05, 47A05}
        keywords{semigroup.}
      maketitle
        begin{abstract}
       In this article,
      end{abstract}

          end{document}