<?php $curauth = (isset($_GET['author_name'])) ? get_user_by('slug', $author_name) : get_userdata(intval($author));
    ?>
    <?php
    $page = (get_query_var('paged')) ? get_query_var('paged') : 1;
    $qury = query_posts(array ('paged' => $page,
        'post_type' => 'articles',
        'author' => $curauth->id,
        'order' => 'DESC',
        'posts_per_page' => 1,
    ));
    if(have_posts()){ while(have_posts()){ the_post();
        wp_blog_pagination();
    }}
    else echo '';
    ?>

$curauth = (isset($_GET['author_name'])) ? get_user_by('slug', $author_name) : get_userdata(intval($author));

$page = (get_query_var('paged')) ? get_query_var('paged') : 1;
$args = array (
    'paged' => $page,
    'post_type' => 'articles',
    'author' => $curauth->id,
    'order' => 'DESC',
    'posts_per_page' => 1,
);

$query = new WP_Query( $args );

if( $query->have_posts() ) {
    while( $query->have_posts() ) {
        $query->the_post();
        wp_blog_pagination();
    }
} else {
    echo '';
}