مسافر
اکتوبر 1934 ء میں شائع ہوئی۔ ”جاوید نامہ“ کی اشاعت اور گول میز کانفرنسوں میں شرکت کے باعث اقبال مسلسل سفر میں رہے۔ پھر سر راس مسعود اور سید سلیمان ندوی کے ہمراہ د شاہ افغانستان کی دعوت پر 1933 ء میں افغانستان گئے ۔ وہاں سلطان محمود غزنوی اور حکیم سنائی کے مزارات پر گئے افغانستان کی یاداشتوں کو منظوم انداز میں محفوظ کیا اور مثنوی ”مسافر" کا عنوان دیا۔
In the history of Pakistan, three military governments ruled for a quite long period. Nonetheless, they made no stable policies for the economic development of Pakistan. As a result, Pakistan could not make progress on strong foundation. Economic policies were meant for a shorter interval. Therefore, they only resulted in cosmetic change in the economy. The results of these policies were restricted to a certain class and the public suffered from the negative impact of these policies. Public welfare got secondary importance which resulted in economic inequality. Wealth circulated within a few families. In all the three reigns, no strategy was formed for the paying of external debt. On the one hand, the salvation of Pakistan was put at stake by increasing external debt and aid while on other hand, masses suffered added direct and indirect taxes. In these conditions, common man could not fulfill his basic necessities of life. Pakistan could make considerable progress, if any of the governments might have considered Islamic principles of Islam.
Polygonal designs, a class of partially balanced incomplete block designs (PBIBDs) with regular polygons, are useful in survey sampling in terms of balanced sam- pling plans excluding contiguous units (BSECs) and balanced sampling plans to avoid the selection of adjacent units (BSAs), when neighboring (contiguous or ad- jacent) units in a population provide similar information. The reason for using such designs is that the units that are physically close might be more similar than the distant units. By the use of such designs or plans we can select the units over the entire experimental region by avoiding the selection of units that provide es- sentially redundant information. In other words, these neighboring units are de- liberately excluded from being sampled under the idea that they provide little new information to the sampling effort. Searches for polygonal designs may be divided into two broad categories: those which attempts to prove the existence of polygonal designs with a given set of pa- rameters (v, k, λ, α), and those which attempts to construct (or enumerate) polygo- nal designs with a given set of parameters (v, k, λ, α). In this thesis, the construction of cyclic polygonal designs is generalized for the parameters: the distance α (or m), the concurrence (or index) parameter λ and the treatments v. The major reasons for introducing generalized cyclic polygonal designs in this thesis are that: (i) the existing literature considers the existence and the construction of cyclic polygonal designs only for the limited distance α, the concurrence param- eter λ and the treatments v; iii(ii) the existence and the construction of unequal block sized cyclic polygonal de- signs for distance α ≥ 1 has not been attempted in literature. In Chapter 1, an introduction to polygonal designs is given. A brief review on the existing work on polygonal designs is presented, and some limitations in the existing work are pointed out. In Chapter 2, the method of cyclic shifts is briefly described, and explained that how this method helps in the development of concurrence matrix (or concurrence vector) which is the main tool for the detection of the properties of cyclic polygonal designs. The distinguishing feature of this method is that the properties of a design can easily be obtained from the sets of shifts instead of constructing the actual blocks of the design. The pattern of off-diagonal zero elements (in bold form) from the main diagonal in a concurrence matrix (or in a concurrence vector) is useful in the identification of the distance in a cyclic polygonal design. In Chapter 3, minimal cyclic polygonal designs with block size k = 3 and λ = 1 are constructed for distance α = 1, 2, 3, . . . , 16 and for v < 100 treatments. In Chapter 4, the existence and construction of cyclic polygonal designs with block size k = 3, for λ = 1, 2, 3, 4, 6, 12 and for α = 1, 2, 3, 4, 5, 6 is considered, and complete solutions for v ≤ 100 treatments are presented. In Chapter 5, the existence and construction of minimal cyclic polygonal designs with unequal-sized blocks and λ = 1 is first ever introduced for distance α ≥ 1. In Chapter 6, the thesis is summarized and future directions for the extension of cyclic polygonal designs are proposed.