Conversation with Merlin [email protected] · Wed Nov 22 2023

identify a practical situation, for the topic of pigeon hole principle and make a report with the following things: a. Problem Statement (4-5 points) b. Objectives, Motivation and Applications (4-5 points) c. Mathematical Background(4-5 points) d. Program Implementation (can be executed on any platform) e.Conclusions

a. Problem Statement:

  1. The problem is to find an efficient method to allocate limited resources to a larger number of consumers/providers where at least one/provider must receive multiple resources.
  2. Given a scenario where there are more items than categories, the task is to ensure that at least one category contains more than one item.
  3. In a population, where there are more individuals than distinctive characteristics, the challenge is to demonstrate the existence of individuals that share the same set of characteristics.
  4. When assigning tasks to a team of workers, such that there are more tasks than workers, the objective is to confirm that at least one worker is assigned more than one task.

b. Objectives, Motivation, and Applications:

  1. Objectives:

    • To demonstrate the necessity for allocation optimization in scenarios where resource distribution is uneven due to limited availability.
    • To leverage the principle to comprehend patterns that emerge within large collections of data.
    • To illustrate the concept's application in diverse fields such as computer science, scheduling, data analysis, and probabilistic analysis.
  2. Motivation:

    • The principle motivates the creation of efficient algorithms for resource allocation and utilization.
    • It enables the identification of commonalities in sets of data, aiding in pattern recognition and anomaly detection.
    • The principle's application in various domains demonstrates its universality and relevance in real-world problem-solving.
  3. Applications:

    • Resource allocation in computer systems, such as memory management and task scheduling.
    • Data analysis and machine learning for identifying similarities or outliers in datasets.
    • Optimization problems in logistics, project management, and supply chain operations. -abilistic analysis in fields like cryptography, random number generation, and statistical sampling.

c. Mathematical Background:

  1. The pigeonhole principle can be mathematically expressed as follows:
    • If n items are put into m containers with n > m, then at least one container must contain more than one item.
    • Additionally, for natural numbers k and m, if n = km + 1 objects are distributed among m sets, at least one set will contain at least k + 1 objects.
  2. The principle can be used as a counting argument to produce unexpected results, emphasizing its significance in combinatorics and probability.
  3. Generalizations of the principle extend its applicability to diverse mathematical scenarios, enabling various quantitative analyses and proofs.

d. Program Implementation (can be executed on any platform):

  • The implementation of the principle can be demonstrated through a simple Python program that allocates items to containers, ensuring the fulfillment of the principle's condition. This program can showcase the practical application of the principle in a basic scenario.
def pigeonhole_principle(items, containers): if items <= containers: print("Invalid configuration: Items should be more than containers.") else: print("Valid configuration: At least one container must contain more than one item.") # Example usage pigeonhole_principle(10, 9)

e. Conclusions: In conclusion, the pigeonhole principle provides a fundamental understanding of resource allocation, combinatorics, and probability, with wide-ranging applications in diverse fields. Its mathematical foundation and practical implications make it a valuable concept for addressing allocation challenges and identifying patterns within datasets. The program implementation exemplifies the principle's simple yet profound applicability in real-world scenarios, highlighting its significance in problem-solving and decision-making processes.

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pi.math.cornell.edu

Pigeons in holes. Here there are n = 10 pigeons in m = 9 holes. Since 10 is greater than 9, the pigeonhole principle says that at least one hole has more than one pigeon. (The top left hole has 2 pigeons.) In mathematics, the pigeonhole principle states that if n items are put into m containers, with n > m, then at least one container must contain more than one item.[1] For example, of three gloves (none of which is ambidextrous/reversible), at least two must be right-handed or at least two must be left-handed, because there are three objects but only two categories of handedness to put them into. This seemingly obvious statement, a type of counting argument, can be used to demonstrate possibly unexpected results. For example, given that the population of London is greater than the maximum number of hairs that can be on a human's head, the principle requires that there must be at least two people in London who have the same number of hairs on their heads. Although the pigeonhole principle appears as early as 1624 in a book attributed to Jean Leurechon,[2] it is commonly called Dirichlet's box principle or Dirichlet's drawer principle after an 1834 treatment of the principle by Peter Gustav Lejeune Dirichlet under the name Schubfachprinzip ("drawer principle" or "shelf principle").[3] The principle has several generalizations and can be stated in various ways. In a more quantified version: for natural numbers k and m, if n = km + 1 objects are distributed among m sets, the pigeonhole principle asserts that at least one of the sets will contain at least k + 1 objects.[4] For arbitrary n and m, this generalizes to , where and denote the floor and ceiling functions, respectively. Though the principle's most straightforward application is to finite sets (such as pigeons and boxes), it is also used with infinite sets that cannot be put into one-to-one correspondence. To do so requires the formal statement of the pigeonhole principle: "there does not exist an injective function whose codomain is smaller than its domain". Advanced mathematical proofs like Siegel's lemma build upon this more general concept. Etymology[edit] Pigeon-hole messageboxes at Stanford University Dirichlet published his works in both French and German, using either the German Schubfach or the French tiroir. The strict original meaning of these terms corresponds to the English drawer, that is, an open-topped box that can be slid in and out of the cabinet that contains it. (Dirichlet wrote about distributing pearls among drawers.) These terms morphed to pigeonhole in the sense of a small open space in a desk, cabinet, or wall for keeping letters or papers, metaphorically rooted in structures that house pigeons. Because furniture with pigeonholes is commonly used for storing or sorting things into many categories (such as letters in a post office or room keys in a hotel), the translation pigeonhole may be a better rendering of Dirichlet's original "drawer". That understanding of the term pigeonhole, referring to some furniture features, is fadingespecially among those who do not speak English natively but as a lingua franca in the scientific worldin favor of the more pictorial interpretation, literally involving pigeons and holes. The suggestive (though not misleading) interpretation of "pigeonhole" as "dovecote" has lately found its way back to a German back-translation of the "pigeonhole principle" as the "Taubenschlagprinzip".[5] Besides the original terms "Schubfachprinzip" in German[6] and "Principe des tiroirs" in French,[7] other literal translations are still in use in Arabic (" "), Bulgarian (" "), Chinese (""), Danish ("Skuffeprincippet"), Dutch ("ladenprincipe"), Hungarian ("skatulyaelv"), Italian ("principio dei cassetti"), Japanese (""), Persian (" "), Polish ("zasada szufladkowa"), Portuguese ("Princpio das Gavetas"), Swedish ("Ldprincipen"), Turkish ("ekmece ilkesi"), and Vietnamese ("nguyn l hp"). Examples[edit] Sock picking[edit] Suppose a dra

en.wikipedia.org

[This article is included in the 45th Carnival of Math]Mathematical logic can produce some great trivia. Did you know that at every instant, there is a spot in the world where no wind is blowing? It is true, and the proof comes as an application of a fixed point theorem which I discussed a year ago.This article continues the Thanksgiving tradition of discussing math trivia. These 16 fun tidbits cover topics as disconnected as birthdays, haircuts, WordPress blogs, and cocktail parties. Amazingly, all the results come out of a basic insight from stuffing pigeons into pigeonholes.The pigeonhole principleThe pigeonhole principle is a powerful tool used in combinatorial math. But the idea is simple and can be explained by the following peculiar problem.Imagine that 3 pigeons need to be placed into 2 pigeonholes. Can it be done? The answer is yes, but there is one catch. The catch is that no matter how the pigeons are placed, one of the pigeonholes must contain more than one pigeon.The logic can be generalized for larger numbers. The pigeonhole principle states that if more than n pigeons are placed into n pigeonholes, some pigeonhole must contain more than one pigeon. While the principle is evident, its implications are astounding. The reason is that the principle proves the existence (or impossibility) of a particular phenomenon.The pigeonhole principle (more generalized)There is another version of the pigeonhole principle that comes in handy. This version is the maximum value is at least the average value, for any non-empty finite bag of real numbers (thanks Professor Dijkstra)Do not let the math jargon intimidate you. The idea is intuitive. For typical data sets, the average is the middle value, so clearly the maximum should be at least as big. While this version sounds different, it is mathematically the same as the one stated with pigeons and pigeonholes. Lets see how the two are connected.Consider again the problem of stuffing pigeons into pigeonholes and consider the average. If we have more than n pigeons and n pigeonholes, then the average value of (pigeons / pigeonholes) is greater than one. This means the maximum value should also be larger than one. In other words, there has to be some value of more than one pigeons per pigeonhole. Indeed, the two versions are about the same idea.Now that we have a good grasp on the pigeonhole principle, lets see how it can be used. Here are 16 of my favorite applications, categorized by difficultly: . ."All will be well if you use your mind for your decisions, and mind only your decisions." Since 2007, I have devoted my life to sharing the joy of game theory and mathematics. MindYourDecisions now has over 1,000 free articles with no ads thanks to community support! Help out and get early access to posts with a pledge on Patreon. . . Easy (1-8)1. For every 27 word sequence in the US constitution, at least two words will start will the same letter.There are 27 words or pigeons that can start with one of the 26 different English letters or pigeonholes. By the pigeonhole principle, two of the words must start with the same letter.2. In New York City, there are two non-bald people who have the same number of hairs on their head.The human head can contain up to several hundred thousand hairs, with a maximum of about 500,000. In comparison there are millions of people in New York City. Consequently, at least two of them must share the same number of hairs.3. Two or more people reading this blog will have the same birthday.There are 366 possible birthdays (including February 29 in a leap year) and this blog has many more than 367 readers. Therefore two of you must share the same birthday.4. On Thanksgiving, two or more of the consumed turkeys will have the same weight when rounded to the nearest millionth of a pound.Turkeys weigh roughly 15 pounds, with the largest recorded at 37 pounds. If we could weigh all turkeys to the millionth of a pound, then we have 37 million possible values for weig

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