Organisation : MSc/PhD Mathematics
Exam : MSc/PhD Mathematics Entrance Exam
Document Type : Question Paper
Year : 2021
Website : https://www.cmi.ac.in/admissions/syllabus.php
CMI MSc/PhD Mathematics Question Paper
The entrance examination is a test of aptitude for Mathematics featuring both multiple choice questions and problems requiring detailed solutions drawn mostly from the following topics: algebra, real analysis, complex analysis, calculus.
Related / Similar Question Paper : CMI MSc/PhD Mathematics Entrance 2022 Question Paper
MSc/PhD Mathematics Question Paper
(1) Which of the following can not be the class equation for a group of appropriate order?
(A) 14 = 1 + 1 + 1 + 1 + 1 + 1 + 1 + 7.
(B) 18 = 1 + 1 + 1 + 1 + 2 + 3 + 9.
(C) 6 = 1 + 2 + 3.
(D) 31 = 1 + 3 + 6 + 6 + 7 + 8.
(2) Consider the improper integral โโซ 2 1 ๐ฅ (log ๐ฅ)2 ๐๐ฅ and the infinite series โร ๐=2 1 ๐ (log ๐)2 . Which of the following is/are true?
(A) e integral converges but the series does not converge.
(B) e integral does not converge but the series converges.
(C) Both the integral and the series converge.
(D) e integral and the series both fail to converge.
(3) Let ๐ด โ ๐2 (R) be a nonzero matrix. Pick the correct statement(s) from below.
(A) If ๐ด2 = 0, then (๐ผ2 โ ๐ด)5 = 0.
(B) If ๐ด2 = 0, then (๐ผ2 โ ๐ด) is invertible.
(C) If ๐ด3 = 0, then ๐ด2 = 0.
(D) If ๐ด2 = ๐ด3 โ 0, then ๐ด is invertible.
(4) Let ๐ : [0, 1] โโ [0, 1] be a continuous function. Which of the following is/are true?
(A) For every continuous ๐ : [0, 1] โโ R with ๐(0) = 0 and ๐(1) = 1 there exists ๐ฅ โ [0, 1] with ๐ (๐ฅ) = ๐(๐ฅ). 1
(B) For every continuous ๐ : [0, 1] โโ R with ๐(0) < 0 and ๐(1) > 1 there exists ๐ฅ โ [0, 1] with ๐ (๐ฅ) = ๐(๐ฅ).
(C) For every continuous ๐ : [0, 1] โโ R with 0 < ๐(0) < 1 and 0 < ๐(1) < 1 there exists ๐ฅ โ [0, 1] with ๐ (๐ฅ) = ๐(๐ฅ).
(D) For every continuous ๐ : [0, 1] โโ [0, 1] there exists ๐ฅ โ [0, 1] with ๐ (๐ฅ) = ๐(๐ฅ).
(5) Let ๐ผ, ๐ฝ be nonempty open intervals in R. Let ๐ : ๐ผ โโ ๐ฝ and ๐ : ๐ฝ โโ R be functions. Let โ : ๐ผ โโ R be the composite function ๐ โฆ ๐ . Pick the correct statement(s) from below.
(A) If ๐ , ๐ are continuous, then โ is continuous.
(B) If ๐ , ๐ are uniformly continuous, then โ is uniformly continuous.
(C) If โ is continuous, then ๐ is continuous.
(D) If โ is continuous, then ๐ is continuous.
(6) Let ๐ด, ๐ต be non-empty subsets of R2. Pick the correct statement(s) from below:
(A) If ๐ด is compact, ๐ต is open and ๐ด โช ๐ต is compact, then ๐ด โฉ ๐ต โ ล.
(B) If ๐ด and ๐ต are path-connected and ๐ด โฉ ๐ต โ ล then ๐ด โช ๐ต is path-connected.
(C) If ๐ด and ๐ต are connected and open and ๐ด โฉ ๐ต โ ล, then ๐ด โฉ ๐ต is connected.
(D) If ๐ด is countable with |๐ด| โฅ 2, then ๐ด is not connected.
(7) Pick the correct statement(s) from below.
(A) ๐ = รโ ๐=1 ๐๐ where ๐๐ = {1, 2, . . . , 2๐ } for ๐ โฅ 1 is not compact in the product topology.
(B) ๐ = รโ ๐=1 ๐๐ where ๐๐ = [0, 2๐] โ R for ๐ โฅ 1 is path-connected in the product topology.
(C) ๐ = รโ ๐=1 ๐๐ where ๐๐ = (0, 1 ๐ ) โ R for ๐ โฅ 1 is compact in the product topology.
(D) ๐ = รโ ๐=1 ๐๐ where ๐๐ = {0, 1} for ๐ โฅ 1 (with product topology) is homeomorphic to (0, 1).
(8) Let ๐ (๐ง) = ๐๐ง โ1 ๐ง (๐งโ1) be defined on the extended complex plane C โช {โ}. Which of the following is/are true?
(A) ๐ง = 0, ๐ง = 1, ๐ง = โ are poles.
(B) ๐ง = 1 is a simple pole.
(C) ๐ง = 0 is a removable singularity.
(D) ๐ง = โ is an essential singularity
(9) For ๐ด โ ๐3 (C), let ๐๐ด = {๐ต โ ๐3 (C) | ๐ด๐ต = ๐ต๐ด}. Which of the following is/are true?
(A) For all diagonal ๐ด โ ๐3 (C), ๐๐ด is a linear subspace of ๐3 (C) with dimC ๐๐ด โฅ 3.
(B) For all ๐ด โ ๐3 (C), ๐๐ด is a linear subspace of ๐3 (C) with dimC ๐๐ด > 3.
(C) ere exists ๐ด โ ๐3 (C) such that ๐๐ด is a linear subspace of ๐3 (C) with dimC ๐๐ด = 3.
(D) If ๐ด โ ๐3 (C) is diagonalizable, then every element of ๐๐ด is diagonalizable.
(10) Let ๐พ be a field of order 243 and let ๐น be a subfield of ๐พ of order 3. Pick the correct statement(s) from below.
(A) ere exists ๐ผ โ ๐พ such that ๐พ = ๐น (๐ผ).
(B) e polynomial ๐ฅ242 = 1 has exactly 242 solutions in ๐พ.
(C) e polynomial ๐ฅ26 = 1 has exactly 26 roots in ๐พ.
(D) Let ๐ (๐ฅ) โ ๐น [๐ฅ] be an irreducible polynomial of degree 5. en ๐ (๐ฅ) has a root in ๐พ.
Download CMI MSc/PhD Mathematics Question Paper
Download MSc/PhD Mathematics Entrance Question Paper :
https://www.pdfquestion.in/uploads/pdf2022/40930.pdf